Trees and Shrubs Online logo

References

References

References

Focus Arboreta

Collectors' References

Glossary

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
_
_
_
_
_
_

  • H

  • Ha, B.T. & Bach, T.T. (2023). Uses Of Medicinal Flowering Plant Species In Lang Son Province, Vietnam. in Journal of Population Therapeutics and Clinical Pharmacology 30:2 176-192 [link] (accessed 2023-04-17)
  • Ha, H-Y. et al. (2018). Molecular Phylogeny and Dating of Forsythieae (Oleaceae) Provide Insight into the Miocene History of Eurasian Temperate Shrubs in Plant Science 9 [link] (accessed 2023-12-22)
  • Ha, Y. et al. (2018). Molecular Phylogeny and Dating of Forsythieae (Oleaceae) Provide Insight into the Miocene History of Eurasian Temperate Shrubs in Frontiers in Plant Science 9 1-15
  • Hacke, U. & Sauter, J. J. (1996). Xylem dysfunction during winter and recovery of hydraulic conductivity in diffuse-porous and ring-porous trees in Oecologia 105:4 1432–1939
  • Hackfalls Arboretum (2020). Hackfalls Catalogue [link] (accessed 2020-10-20)
  • Hada, Y. (2022). Quercus salicina Okayama University of Science, Plant Ecology Laboratory (Hada Lab.) (accessed 2022-05-13)
  • Haddock, S. (2008). Oak-hunting in Japan, Report on the IOS Japan Tour, October 2007 in International Oaks 19 44-62 [link] (accessed 2021-02-16)
  • Haddock, S. (2012). Oaks in a Difficult Climate – Arboretum de la Bergerette in International Oaks 23 27-40 [link] (accessed 2021-02-03)
  • Haddock, S. (2013). Stellenbosch City of Oaks in Oak News & Notes 17:2 3–4 International Oak Society (accessed 2025-11-05)
  • Haddock, S. (2015). Windstorm at Arboretum de la Bergerette International Oak Society (accessed 2024-11-16)
  • Haddock, S. (2016). The Elusive Baloot International Oak Society, [link] (accessed 2020-06-15)
  • Haddock, S. (2018). Acorn Time Approaches International Oak Society (accessed 2020-07-01)
  • Hadfield, M. (1962). Growing mulberries in Britain in Country Life September 578-579
  • Hadjmohammadi, M.R. & Kamel, K. (2006). Determination of Juglone (5-hydroxy 1,4-naphthoquinone) in Pterocarya fraxinifolia by RP-HPLC in Iran. J. Chem. Chem. Eng. 25:4 73-76
  • Hadziabdic, D. (2010). Evaluation of genetic diversity of flowering dogwood (Cornus florida L.) in the eastern United States using microsatellites Ph.D diss., University of Tennessee
  • Haenzi, M. et al. (2021). Neofusicoccum parvum, a new agent of Sequoia Canker and Dieback identified in Geneva, Switzerland in Forests 12:4 [link] (accessed 2024-01-25)
  • Haeussler, S. & Coates, D. (1986). Autecological characteristics of selected species that compete with conifers in British Columbia: a literature review British Columbia Ministry of Forests, Information Services Branch, Land Management Report No. 33. Victoria, British Columbia
  • Haeussler, S. & Coates, D. (1986). Autecological characteristics of selected species that compete with conifers in British Columbia: a literature review FRDA Research Report 001 Land Management Report, Ministry of Forests, British Columbia, [link] (accessed 2020-10-26)
  • Hageneder (2011). Yew: A History The History Press
  • Hagiwara, S. (2013). Blooming Merry Tetra Registration Supporting images 25276-002, etc. [link] (accessed 2026-03-12)
  • Hagiwara, S. (2013). Blooming Pink Tetra registration Also images 25275-002 etc. [link] (accessed 2026-03-12)
  • Hagiwara, S. (2013). Blooming White Tetra registration Supporting images 25274-002 etc. [link] (accessed 2026-03-12)
  • Hagiwara, S. (2013). Summer Flare registration [link] (accessed 2026-03-12)
  • Hagiwara, S. (2013). Summer Glassy registration [link] (accessed 2026-03-12)
  • Hagiwara, T. (2013). Summer Sky Tree [registration documentation] [link] (accessed 2026-04-29)
  • Hagiwara, T. (2017). Snow Around Paige [registration documentation] [link] (accessed 2026-05-05)
  • Hagiwara, T. (2017). Winter Red Paige [link] (accessed 2026-05-05)
  • Hagiwara, T. (2017). Yellow Paige [registration documentation] [link] (accessed 2026-05-05)
  • Hahn, C. R. & Yinger, B. R. (1983). Cultivars of Japanese plants at Brookside Gardens in Arnoldia 43:4 8-10
  • Haines, A., Farnsworth, E. & Morrison, G. (2013). Flora Novae Angliae New England Wild Flower Society, Texas
  • Hajrudinovic, A. et al. (2015). When sexual meets apomict: genome size, ploidy level and reproductive mode variation of Sorbus aria s.l. and S. austriaca (Rosaceae) in Bosnia and Herzegovina in Annals of Botany 116 301–312
  • Hakluyt, R. (1589). The Principall Navigations, Voiages and Discoveries of the English Nation 3 George Bishop and Ralph Newberie, London
  • Hall, H.M (1910). Studies in ornamental trees and shrubs in University of California publications in botany 4:1 37-40
  • Hall, T. (2008). Paulownia: An Agroforestry Gem in Trees for Life 3 3 [link] (accessed 2022-08-19)
  • Hall, T. (2015). Meliosma veitchiorum (Twitter feed) [link] (accessed 2022-02-24)
  • Hall, T. (2016). Meliosma pinnata subsp. arnottiana [link] (accessed 2022-02-23)
  • Hallé, F., Oldeman, R.A.A. & Tomlinson, P.B. (1978). Tropical Trees and Forests: An Architectural Analysis Springer-Verlag, Berlin, Heidelberg, New York
  • Haller, J.R. (1986). Taxonomy and relationships of the mainland and island populations of Pinus torreyana (Pinaceae) in Systematic Botany 11 39–50
  • Hallier, H. (1903). Über die Verwandtschaftsverhältnisse bei ENGLER'S Rosalen , Parietalen , Myrtifloren und in anderen Ordnungen der Dikotylen in Abhandlungen aus dem Gebiete der Naturwissenschaften herausgegeben vom Naturwissenschaftlichen Verein in Hamburg 18 1–98 Google Play (accessed 2025-07-17)
  • Halloran, S. (2018). Pieris phillyreifolia: The Opportunistic Climbing Fetterbush in Journal of the Arnold Arboretum 75:3 16-18 Pieris phillyreifolia: The Opportunistic Climbing Fetterbush
  • Hama, J.R. & Strobel, B. (2017). Lupinine - the chemical stopping you from eating Lupin NaToxAq (University of Copenhagen) (accessed 2023-02-13)
  • Hamblin, S.F. (1923). Lists of plant types for landscape planting; the materials of planting for ornament listed according to their various uses Harvard University Press, Cambridge, MA
  • Hamid, A., O'Dell, T.M. & Katovich, S. (1995). White Pine Weevil [link] (accessed 2008-12-23)
  • Hamilton, S. (2014). UT Gardens Plant of the Month for January 2014: Japanese Cornel Dogwood [link] (accessed 2025-11-25)
  • Hamm, T.P. et al. (2026). Ornamental origins and genomic frontiers: a review of big-bracted dogwood research in Frontiers in Plant Science 16 1735902 30 Jan [link]
  • Hamman, G (2017). Exploring Robinson Crusoe or In Search of Juania australis
    . in Palms 61 57–63
  • Hammel, B E & Zamora, N A (1990). Nyssa talamancana (Cornaceae), an addition to the remnant Laurasian Tertiary Flora of southern Central America in Brittonia 42 165-170
  • Hammett, K. (2006). Globalisation – an illusion. in The Garden 131:11 766-767
  • Hammond Arboretum (2025). #132 Walter's Dogwood Cornus walteri [link] (accessed 2025-12-11)
  • Hammond, E. (2020). Parrotia subaequalis – it's ecology and current status [sic] [link] (accessed 2023-11-21)
  • Hampshire, R.J. & Knapp, S. (2009). Cornus disciflora DC. in Flora Mesoamericana. Vol 4, part 1. Cucurbitaceae a Polemoniaceae. 363
  • Hampshire, R.J. & Knapp, S. (2009). Cornus excelsa Kunth in Flora Mesoamericana. Vol 4, part 1. Cucurbitaceae a Polemoniaceae. 363
  • Hamston, T. J. et al. (2017). Breeding system and spatial isolation from congeners strongly constrain seed set in an insect-pollinated apomictic tree: Sorbus subcuneata (Rosaceae). in Sci. Rep. 7 45122 [link]
  • Hamston, T. J., Pellicer, J. & Fay, M. F. (2015). Polyploid wild service tree: first record of a triploid Sorbus torminalis (Rosaceae) in Britain. in N. J. Bot. 5 34–36
  • Hamston, T.J. et al. (2018). Apomixis and hybridization drives reticulate evolution and phyletic differentiation in Sorbus L.: Implications for conservation. in Front. Plant Sci. 9 1796
  • Hamzeh, M. & Dayanandan, S. (2004). Phylogeny of Populus (Salicaceae) based on nucleotide sequences of chloroplast trnT-trnF region and nuclear rDNA in American Journal of Botany 91 1398–1408
  • Han, J. et al. (2012). Polyphenol contents and anti-oxidant effects of Castor Araila (Kalopanax septemlobus) leaf extracts in Korea. in Acta Horticulturae 955 105-11 [link] (accessed 2022-12-14)
  • Han, Q. et al. (2003). Photoprotective role of rhodoxanthin during cold acclimation in Cryptomeria japonica in Plant, Cell & Environment 26 715-723 [link] (accessed 2026-03-20)
  • Hance, H. (1869). Carpinus turczaninovii in Journal of the Linnean Society (Botany) 10 203
  • Hand, R. (2006). Supplementary Notes to the Flora of Cyprus V in Willdenowia 36:2 761–809 JSTOR (accessed 2022-06-01)
  • Handa, M. (2000). Ginkgo biloba in Japan 60:4
  • Handa, M., Iizuka, Y. & Fujiwara, N. (1997). Ginkgo Landscapes 259-283 in Ginkgo biloba - A Global Treasure
  • Handel-Mazzetti, H. (1925). Plantae Novae Sinensis. in Anzeiger der Akademie der Wissenschaften 62 223-223
  • Handel-Mazzetti, H. (1932). Plantae novae Tsiangianae in Sinensia 2 134–135
  • Handel-Mazzetti, H. (1932). Rhoipteleaceae in Fedde, F., Repertorium specierum novarum regni vegetabilis 30 75-80
  • Handel-Mazzetti, H. (1933). Symbolae sinicae :botanische Ergebnisse der Expedition der Akademie der Wissenschaften in Wein nach Südwest-China, 1914-1918
  • Handel-Mazzetti, H.R.E. von (1916). Holotype of Malus ombrophila Hand.-Mazz. [link] (accessed 2020-04-23)
  • Handy Nursery (2025). Handy Nursery Company: Our History [link] (accessed 2025-11-18)
  • Handy Nursery (2026). Handy Nursery: Our History [link] (accessed 2026-03-06)
  • Handy Nursery Company (1987 onwards). Nursery Website [link] (accessed 2020-03-19)
  • Hanelt, P. (ed) (2001). Mansfeld’s Encyclopedia of Agricultural and Horticultural Crops: Except Ornamentals (1st English Edition) Springer, Berlin
  • Hang, L. (2023). 15 million-year-old fossilized Parrotia flower discovered for the first time in East China Global Times, [link] (accessed 2023-11-20)
  • Hang, S. et al. (2017). Origins and evolution of plant diversity in the Hengduan Mountains, China. in Plant Diversity 39:4 161-166
  • Hankin, L.E. et al. (2023). How forest management changed the course of the Washburn fire and the fate of Yosemite’s giant sequoias (Sequoiadendron giganteum) in Fire Ecology 19 [link] (accessed 2024-01-17)
  • Hansen (1892). Pinetum Danicum in Journal of the Royal Horticultural Society 14 481–567
  • Hansen, C.J. (2017). A brief biography of Wolfgang Wolf and typification of the plant names he published. in Journal of the Botanical Research Institute of Texas 11:1 JSTOR (accessed 2022-12-02)
  • Hansen, E.M. (2012). Phythophthora alni Forest Phytophthoras (accessed 2020-10-22)
  • Hansen, H. (2011). The Quest for Quercitron: Revealing the Story of a Forgotten Dye University of Delaware, University of Delaware (accessed 2025-11-17)
  • Hansen, O.K. (2017). Abies-tur i Arboretet: Ud fra en anvendelses- og forskningsmæssig synsvinkel. [link] (accessed 2020-05-01)
  • Hantemirova, E.V. & Marchuk, E.A. (2021). Phylogeography and genetic structure of a subarctic-alpine shrub species, Alnus alnobetula (Ehrh.) K. Koch s.l., inferred from chloroplast DNA markers in Tree Genetics & Genomes 17:2 18 [link] (accessed 2024-02-09)
  • Hantemirova, E.V., Marchuk, E.A. & Polezhaeva, M.A. (2023). Biogeographic history of green alder (Alnus alnobetula (Ehrh.) K. Koch s.l.) in Eurasia and North America: evidence from genetic and morphological analyses. in Canadian Journal of Forest Research 53:12 953–968 [link] (accessed 2024-02-09)
  • Hantemirova, E.V., Pimenova, E.A. & Korchagina, O.S. (2018). Polymorphism of Chloroplast DNA and Phylogeography of Green Alder (Alnus alnobetula (Ehrh.) K. Koch s. l.) in Asiatic Russia in Russian Journal of Genetics 54 64-74 [link]
  • Hao, R. M., Wei, H. T. & Liu, W. G. (1996). Floral morphology of Shaniodendron (Hamamelidaceae) and its taxonomic significance in Journal of Plant Resources and Environment 1:1 30-35
  • Haque, M.E. et al. (2020). Therapeutic potential of Lindera obtusiloba: Focus on antioxidative and pharmacological properties. in Plants 9:12 1765 [link] (accessed 2023-05-04)
  • Hara, H. & Brummit, R.K. (1980). The Problem of Pseudolarix kaempferi: Type Method or Circumscription Method? in Taxon 29:2/3 315–317 Wiley Online Library (accessed 2025-08-01)
  • Hara, H. & Yü, T.T. (1983). Proposal to conserve 25 Pseudlarix Gordon (Pinaceae) with a type specimen in Taxon 32:3 485–486 Wiley Online Library (accessed 2025-08-01)
  • Hara, H. (1966). The Flora of Eastern Himalaya University of Tokyo Press, Japan
  • Hara, H. (1975). New or noteworthy flowering plants from Eastern Himalaya (16) in Journal of Japanese Botany 50:9 263-271
  • Hara, H. (1977). Nomenclatural Notes on Some Asiatic Plants, with Special Reference to Kaempfer's Amœnitatum exoticarum in Taxon 26:5/6 548–587 Wiley Online Library (accessed 2025-08-01)
  • Hara, N. (1997). Morphology and Anatomy of Vegetative Organs in Ginkgo biloba in Ginkgo biloba - A Global Treasure
  • Harden, G.J. (2000a). Eucryphiaceae in Harden, G.J. (ed), Flora of New South Wales. 1 523–524 Revised edn University of New South Wales Press, Sydney
  • Harden, G.J. (2000b). Elaeocarpaceae in Harden, G.J. (ed), Flora of New South Wales 1 314–317 Revised edn University of New South Wales Press, Sydney
  • Harden, G.J. (2002). Simaroubaceae in Harden, G.J. (ed), Flora of New South Wales 2 325–326 Revised edn University of New South Wales Press, Sydney
  • Hardin, J. & Bell, J. (1986). Atlas of Foliar Surface Features in Woody Plants, IX. Betulaceae of Eastern United States in Brittonia 38:2 133-144
  • Hardin, J.W. & Jones, K.A. (1989). Atlas of foliar surface features in woody plants, X. Magnoliaceae of the United States. in Bulletin of the Torrey Botanical Club 116:2 164-173 [link]
  • Hardin, J.W. & Murrell, Z.E. (1997). Foliar micromorphology of Cornus in Journal of the Torrey Botanical Society 124:2 124-139
  • Hardin, J.W. (1954). An analysis of variation within Magnolia acuminata L. in Journal of the Elisha Mitchell Scientific Society 70:2 298-312 [link] (accessed 2021-06-16)
  • Hardin, J.W. (1955). Studies in the Hippocastanaceae, I. Variation within the mature fruit of Aesculus. in Rhodora 57 37-42 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1956). Studies in the Hippocastanaceae. II. Inflorescence structure and distribution of perfect flowers. in American Journal of Botany 43 418-424 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1957). A revision of the American Hippocastanaceae in Brittonia 9 145–171 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1957). A revision of the American Hippocastanaceae: II in Brittonia 9 173–195 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1957). Studies in the Hippocastanaceae IV. Hybridization in Aesculus. in Rhodora 59 185–203 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1957). Studies in the Hippocastanaceae, III A hybrid swarm in the Buckeyes. in Rhodora 59 45-51 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1960). Studies in the Hippocastanaceae, V. Species of the Old World. in Brittonia 12:1 26-38 [link] (accessed 2025-07-16)
  • Hardin, J.W. (1974). Studies on the Southeastern United States Flora. IV. Oleaceae in SIDA, Contributions to Botany 5:4 274-285 [link] (accessed 2022-08-15)
  • Hardin, J.W. (1990). Variation patterns and recognition of varieties of Tilia americana s.l. in Systematic Botany 15 33–48
  • Hardy Eucalyptus Page (2004). Ian Barclay’s website [link] (accessed 2008-07-18)
  • Hardy Tropicals UK (2012). Do Fatsias sucker [link] (accessed 2025-10-28)
  • Hariot, T. (1588). A Briefe and True Report of the New Found Land of Virginia London
  • Harmaja, H. (2004). Notes on Tilia cordata [link] (accessed 2020-02-24)
  • Harms, H. (1894-1897). 'Araliaceae' in Engler, A. & Prantl, K., Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet Part III, vol. 8 [link]
  • Harper, D. (2020). Online Etymology Dictionary [link] (accessed 2020-07-07)
  • Harraß, T., Gundermann, M. & Tränkner, C. (2023). The effect of temperature and photoperiod on floral initiation in remontant and non-remontant Hydrangea macrophylla cultivars. in DGG-Proceedings 11:3 1-6 [link] (accessed 2024-11-17)
  • Harris, A.J. et al. (2017). A molecular phylogeny of Staphyleaceae: Implications for generic delimitation and classical biogeographic disjunctions in the family. in Journal of Systematics and Evolution. 15:2 124-41
  • Harris, AJ. et al. (2017). On merging Acer sections Rubra and Hyptiocarpa: Molecular and morphological evidence in Phytokeys 18:86 9-42
  • Harris, J. (2017). Quercus castaneifolia: Two Distinct Forms? International Oak Society (accessed 2020-11-10)
  • Harris, J. G. S. (1991). The History of the exploration and introduction into cultivation of maples (Acer) in Arboricultural Journal 15 113-126
  • Harris, J. G. S. (2000). The Gardener's Guide to Growing Maples Timber Press, Portland
  • Harris, W., Cadic, A. & Decourtye, L. (1998). The acclimatization and selection of New Zealand plants for ornamental use in Europe. in XIX International Symposium on Improvement of Ornamental Plants 191-196 508 [link] (accessed 2021-09-01)
  • Harrison, H. (2012). Plant Hunting for Borde Hill in The Plantsman 11 90-95 New Series
  • Hartley, T G (1966). A revision of the Malesian species of Zanthoxylum (Rutaceae). 47 171-211 in Journal of the Arnold Arboretum 47 171-211
  • Hartley, T.G. (1981). A revision of the genus Tetradium (Rutaceae) in Gardens’ Bulletin, Singapore 34 91–131
  • Hartmann, H. T. et al. (2014). Hartmann and Kester's Plant Propagation Principles and Practices
  • Hartmann, H.T. et al. (2018). Hartmann and Kester's Plant Propagation Principles and Practices Pearson, New York, New York
  • Hartweg, T. (1848). Notes of a Visit to Mexico, Guatemala, and Equatorial America, during the Years 1836 to 1843, in search of Plants and Seeds for the Horticultural Society of London in Transactions of the Horticultural Society of London 2:3 115-162
  • Harvard Library (1914). Papers of Ernest Henry Wilson, 1896-1952; Series: W.VI: The Fifth Expedition to Japan, February 1914-January 1915 Field notes on collected plants and seeds, Feb 18 October 1914 III EHW Box 10, folder 1 Harvard Mirador Viewer (accessed 2025-10-26)
  • Harvard Library (1918). Papers of Ernest Henry Wilson 1896-1952 Series W.VII: Wilson's sixth expedition to the Far East, Japan, Korea, Manchuria, Formosa. Collection Notes Jan-Jun 1918. III EHW Box 12, folder 4 Harvard Library Viewer (accessed 2025-10-30)
  • Harvard University Herbaria and Libraries (2025). Timeline of Tetrapanax papyrifum [link] (accessed 2025-03-14)
  • Harvey, W.H. (1858). Nereis boreali-americana Part III: Chorospermae in Smithsonia Contributions to Knowledge 10 1–140 Part 2 Smithsonian Institution, Washington, Biodiversity Heritage Library
  • Harvey-Brown, Y. (2020). Acer pycnanthum. The IUCN Red List of Threatened Species 2020: e.T193858A2286832. [link] (accessed 2020-04-29)
  • Hashida, R. (1990). A Book of Tree and Herbaceous Peonies in Modern Japan [in Japanese] Japanese Botan Society, Tatebayashi City, Japan
  • Haslam, A. (2019). Bishop Compton: a (controversial) retrospective [link] (accessed 2020-04-16)
  • Haslam, A. (2019). Here’s to you, Bishop Robinson – a revisionist history [link] (accessed 2020-04-16)
  • Hatch, L. (2018–2020). Hatch's Cultivars of Woody Plants, 2018-2020 Edition 6474 cultivar.org
  • Hatch, L. C. (2017). Hatch's Cultivars of Woody Plants: Genera F TCR Press
  • Hatch, L. C. (2024). Hatch's Cultivars of Woody Plants (2024 edition) cultivar.org
  • Hatch, L.C. (1998–2006). New Ornamentals Society (NOS) Cercis page [link] (accessed 2008-03-22)
  • Hatch, L.C. (2005). New Ornamentals Society (NOS) Pinus taeda page [link] (accessed 2008-08-05)
  • Hatch, L.C. (2015). Cultivars of Woody Plants TCR Press
  • Hatch, L.C. (2017). Cultivars of Woody Plants: Genera D to E 283 cultivar.org
  • Hatch, L.C. (2021). International Register of Plant Cultivars: Woody Plants Spring 2021 [link] (accessed 2022-10-15)
  • Hatch, L.C. (2021-2022). Hatch's Cultivars of Woody Plants (2021-2022 edition) cultivar.org
  • Hatch, L.C., Summers, M. & Albrici, J. (2017). International Register of Woody Plant Cultivars: Book VIII: Woody Plants. Version 8.0 Cultivar.org, Cary, North Carolina
  • Hatta, H. & Yoshida, K. (1989). A New Variety of Enkianthus subsessilis (Miq.) Makino in Annals of Tsukuba Botanical Garden 8 11-13
  • Hatusima, S. (1951). New and noteworthy plants from southern Japan and the adjacent districts in The Journal of Japanese Botany 26:12 371-376 [link] (accessed 2021-11-01)
  • Haugh, J. (2022). Hybrid species of Paulownia will be grown in the UK for the first time [link] (accessed 2022-08-18)
  • Hauser, D.A. et al. (2017). The evolution and diversification of the red oaks of the California Floristic Province (Quercus section Lobatae, series Agrifoliae) in American Journal of Botany Botanical Society of America (accessed 2025-11-05)
  • Havill, N.P. et al. (2008). Phylogeny and biogeography of Tsuga (Pinaceae) inferred from nuclear ribosomal ITS and chloroplast DNA sequence data in Systematic Botany 33 478–489
  • Havlis (2022). Vaccinium vitis-idaea 'Lirome' FIREBALLS [online catalogue entry] [link] (accessed 2022-08-04)
  • Havlis (2025). Chilopsis linearis 'Burgundy' Desert Willow [link]
  • Havlis, M. (2019 onwards). [online nursery catalogue] [link] (accessed 2019-04-24)
  • Haw, S.G. & Lauener, L.A. (1990). A Review of the Infraspecific taxa of Paeonia suffruticosa Andrews in Edinburgh Journal of Botany 47:3 273-281
  • Haw, S.G. (2000). Paeonia ostii in Britain in The New Plantsman 7:3 160-3
  • Haw, S.G. (2001). Paeonia delavayi, a variable species in The New Plantsman 8:4 251-253
  • Haw, S.G. (2001). Tree Peonies: A Review of their History and Taxonomy in The New Plantsman 8:3 156-171
  • Hawke, R. (2015). Beyond the Basic Butterfly Bush in Fine Gardening:August 2015 31-36
  • Hawke, R.G. (2022). Comparative Trials of Hydrangea paniculata Cultivars [link] (accessed 2023-10-09)
  • Hawkins, T.S., Walck, J.L. & Hidayati, S.N. (2011). Seed ecology of Lindera melissifolia (Lauraceae) as it relates to rarity of the species. in Journal of the Torrey Botanical Society 138:3 298–307 [link] (accessed 2023-04-10)
  • Haworth-Booth, M. (1950). The Hydrangeas (1st Ed.) Constable, London
  • Haworth-Booth, M. (1970). Effective Flowering Shrubs Collins, London
  • Haworth-Booth, M. (1984). The Hydrangeas (5th Ed.) Constable, London
  • Hay, I. (1995). Science in the Pleasure Ground. Northeastern University Press, Boston
  • Hayashi, Y. (1954). Notes on Japanese plants (1) in Journal of Japanese Botany 29:5 149-152 [link] (accessed 2024-01-26)
  • Hayashi, Y., Azegami, C. & Hishiyama, C. (1985). Woody Plants of Japan Yama to Keikokusha, Tokyo
  • Hayata, B. (1908). Flora Montana Formosae in Journal of the College of Science, Imperial University of Tokyo 25 Art. 19 [link] (accessed 2024-01-03)
  • Hayata, B. (1911). Materials for a Flora of Formosa in Journal of the College of Science 30:1 1-471 Biodiversity Heritage Library (accessed 2024-06-04)
  • Hayata, B. (1911). Materials for a flora of Formosa. in The journal of the college of Science, Imperial University of Tokyo 30:98 1-471
  • Hayata, B. (1913). Contributions to the Flora of Formosa I. in Icones Plantarum Formosanum 3 1-197 [link] (accessed 2024-07-13)
  • Hayata, B. (1913). Sapindaceae. Koelreuteria Laxm. 3 64 Taihoku Bureau of Productive Industry, Government of Formosa 1911-1921
  • Hayata, B. (1914). Flora Montana Formosae in Journal of the College of Science, Imperial University, Tokyo 25 1–260
  • Hayata, B. (1915). Icones plantarum formosonarum 5 Taihoku Bureau of Productive Industry, Government of Formosa 1911-1921, Biodiversity Heritage Library (accessed 2025-07-12)
  • Hayek, F.A. & Peart, S.J. (2015). The Collected Works of F.A. Hayek 16 Hayek on Mill: The Mill-Taylor Friendship and Related Writings The University of Chicago Press, Chicago, Research Gate (accessed 2024-11-19)
  • Hayek, J.C. & Mohlenbrock, R.H. (2009). Forest Trees of Illinois University of Illinois Extension, Urbana-Champaign, IL
  • Haynes, J.E. et al. (2020). Revision of Fothergilla (Hamamelidaceae), including resurrection of F. parvifolia and a new species F. milleri in PhytoKeys 144 57-80
  • He, C. et al. (2020). Foraging Behavior of Honeybees (Apis mellifera L.) and Ground Bumblebees (Bombus terrestris L.) and its Influence on Seed Yield and Oil Quality of Oil Tree Peony Cultivar ‘Fengdan’ (Paeonia ostiiT. Hong et J. X. Zhang) in Journal of Apicultural Science 64:1 [link] (accessed 2020-10-09)
  • He, L.F. et al. (2020). The complete chloroplast genome of Hydrangea davidii (Hydrangeaceae). in Mitochondrial DNA Part B 5:3 3587-3589 [link] (accessed 2024-06-06)
  • He, X. et al. (2022). Prediction of Potential Distribution of Endangered Species Corylus chinensis Franch. in Climate Change Context in Forest Research 35:1 104-114
  • He, Z, et al. (2023). A chromosome-level genome assembly provides insights into Cornus wilsoniana evolution, oil biosynthesis, and floral bud development in Horticulture Research uhad196
  • He, Z. X. & Luo, W. X. (1992). Evaluation of Chinese tree species in Eastwoodhill Arboretum in Horticulture in New Zealand 3:2 7-9
  • He, Z.-C., Li, J.-Q. & Wang, H.-C. (2004). Karyomorphology of Davidia involucrata and Camptotheca acuminata, with special reference to their systematic positions in Botanical Journal of the Linnaean Society 144:2 193-198
  • Head, R.H. (2001). Loropetalum plant named ‘Snowmound’ Google Patents (accessed 2025-04-16)
  • Heads, M. (2000). A new species of Hoheria (Malvaceae) from the Poor Knights Islands and Hen and Chickens Islands, New Zealand in New Zealand Journal of Botany 38 373-377 [link] (accessed 2021-09-03)
  • Heads, M. (2019). Biogeography and ecology in a pantropical family, the Meliaceae. in Gardens' Bulletin Singapore 71 335-461 suppl. 2
  • Heads, M.J. (1987). New names in New Zealand Scrophulariaceae in Newsletter of the Botanical Society of Otago 5 4-11
  • Heartland Peony Society (2020 onwards). Heartland Peony Society [link] (accessed 2020-09-17)
  • Heathcoat Amory, M. (2009). The Oaks of Chevithorne Barton Adelphi Publishers, London
  • Heathcoat Amory, M. (2012). Growing Mexican Oaks in Devon, UK in International Oaks 23 41–49 International Oak Society (accessed 2024-11-06)
  • Hebb, R. (1970). Liriodendron tulipifera 'Ardis' in Arnoldiana 30 251-260
  • Hebb, R. (1972). Plant Registrations in Arnoldia 32 283-286
  • Hebb, R.S. (1973). Plant Registrations in Arnoldia 33:3 199-209 [link] (accessed 2020-02-24)
  • Hecker, U. (2004). Taxodiomeria: eine neue Nadelgehölz-Gattungshybride in Gartenpraxis 34–36
  • Hedberg, I. et al. (2006). Flora of Ethiopia and Eritrea 5 Addis Ababa, Uppsala
  • Hedge, I.C. & Yaltirik, F. (1994). The Oaks of Turkey in Journal of the International Oak Society 5 3–22 [link] (accessed 2020-09-05)
  • Hedlund, I. (1901). Monographie der Gattung Sorbus. in Kongliga svenska Vetenskapsakademiens Handlingar 35 1- 147
  • Hedrick, P.W. & Kalinowski, S.T. (2000). Inbreeding depression in conservation biology. in Annual Review of Ecology and Systematics 31 139-162
  • Heenan, P.B. & de Lange, P.J. (2006). Pseudowintera insperata (Winteraceae), an overlooked and rare new species from northern New Zealand in New Zealand Journal of Botany 44:1 Taylor & Francis Online (accessed 2025-03-17)
  • Heenan, P.B. & Smissen, R.D. (2013).

    Revised circumscription of Nothofagus and recognition of the segregate genera Fuscospora, Lophozonia, and Trisyngyne (Nothofagaceae) in Phytotaxa 146:1

  • Heenan, P.B. (1998). An emended circumscription of Carmichaelia, with new combinations, a key, and notes on hybrids in New Zealand Journal of Botany 1998:36 53-63
  • Heenan, P.B. (1998). Phylogenetic analysis of the Carmichaelia complex, Clianthus, and Swainsonia (Fabaceae), from Australia and New Zealand in New Zealand Journal of Botany 1998:36 21-40
  • Heenan, P.B. (2001). The correct name for Chilean pelu (Fabaceae): the identity of Edwardsia macnabiana and the reinstatement of Sophora cassioides in New Zealand Journal of Botany 39 167–170
  • Heenan, P.B. (2004). The New Zealand species of kowhai (Sophora) in The Plantsman 3 71–78. (n.s.)
  • Heenan, P.B. et al. (2005). Relationships of the New Zealand mountain ribbonwoods (Hoheria glabrata and H. lyallii: Malvaceae), based on molecular and morphological data. in New Zealand Journal of Botany 43:2 527-549 [link] (accessed 2021-07-02)
  • Heenan, P.B., de Lange, P.J. & Wilton, A.D. (2001). Sophora (Fabaceae) in New Zealand: taxonomy, distribution and biogeography in New Zealand Journal of Botany 39 17–53
  • Heerdegen, B. & Eisenhut, R. (2020). Magnolien und Tulpenbäume: Magnoliaceae Books on Demand, Norderstedt
  • Hehn, V. (1891). Cultivated Plants and Domesticated Animals in the Migration from Asia to Europe Swan Sonnenschein, London
  • Heikens, A.L. (2014). Nevusia A.Gray in Flora of North America 9 Rosaceae www.eFloras.org (accessed 2025-06-30)
  • Heine, H. (1983). Tour of Mexico - 24 October to 15 November 1982 45–51 in International Dendrology Society Yearbook 1982
  • Heinemann, F.C. (1890). F. C. Heinemann General-Catalog 1890 F. C. Heinemann, Erfurt
  • Heinemeyer, P. (2021). [Facebook post in 'Plant Breeding for Permaculture', 8th February 2021] [link] (accessed 2023-01-13)
  • Heinze, W. (2004). Tilia × flaccida: weit verbreitit, meist unerkannt in Mitteilung der deutsches dendrologischen Geseilschaft 89 117-120
  • Hélardot, J-L (2020). Oaks of the world [link] (accessed 2020-06-25)
  • Helfgott, D.M. et al. (2000). Biogeography and breeding system evolution of the woody Bencomia alliance (Rosaceae) in Macaronesia based on ITS sequence data in Systematic Biology 25 82–97
  • Helmstadter, A. (2013). Tripterygium wilfordii Hook. F. - How a traditional Taiwanese medicinal plant found its way to the West in Pharmazie 68 p.644 Research Gate (accessed 2025-10-29)
  • Helmstetter, A. J. et al. (2020). Genetic diversity and domestication of hazelnut (Corylus avellana L.) in Turkey in Plants People Planet 2:4 326-339
  • Helmstetter, A. J., Buggs, R. J. A. & Lucas, S. J. (2019). Repeated long-distance dispersal and convergent evolution in hazel in Scientific Reports (Nature) 9:16016 [link] (accessed 2022-12-12)
  • Hemery, G. & Simblet, S. (2014). The New Sylva Bloomsbury Publishing
  • Hempel, P., Hohe, A. & Tränkner, C. (2018). Molecular reconstruction of an old pedigree of diploid and triploid Hydrangea macrophylla genotypes. in Frontiers in Plant Science 9 429 [link] (accessed 2024-09-30)
  • Hemsley, W. B. (1908). New or noteworthy plants in The Gardeners' Chronicle 44 101-103
  • Hemsley, W.B. (1908). Pseudolarix Fortunei 134 Tab. 8176 Series 4: vol. 4 Biodiversity Heritage Library (accessed 2025-08-31)
  • Hemsley, W.B. (1909). Cornus controversa in Curtis's Botanical Magazine t.8464
  • Hemsley, W.B. (1909). Cornus macrophylla, and some Asiatic congeners in Bulletin of Miscellaneous Information, Royal Botanic Gardens, Kew 329-335
  • Henderson, E. G. (1861). New and Rare Plants 963, 1024 in Gardener's Chronicle
  • Henderson, U. (2004). South West England, May 26–31 (report of IDS tour) in International Dendrology Society Yearbook 2003 58–64
  • Hendricks, B. (2006). Ohio Hybridizers and Cultivars represented in the Heritage Garden
  • Hendricks, D.R. & Søndergaard, P. (1998). Metasequoia glyptostroboides – 50 years out of China. Observations from the United States and Denmark. in Dansk Dendrologisk Årsskrift 6 6-24
  • Hendry, L. (2015). Foul-smelling ginkgo seeds wreak havoc after city plants female tree in error in CBC News [link]
  • Hengeveld, R. (1989). Dynamics of biological invasions Chapman and Hall, London
  • Henkel, A. (1907). American Root Drugs: USDA Bureau of Plant Industry – Bulletin No. 107 Government Printing Office, Washington, DC, [link] (accessed 2025-02-11)
  • Henkel, J.B. & Hochstetter, W. (1865). Synopsis der nadelhölzer, deren charakteristischen merkmale nebst andeutungen über ihre cultur und ausdauer in Deutschlands klima Verlag der J. G. Cottaschen Buchhandlung, Stuttgart
  • Henrickson, J. (1985). A taxonomic revision of Chilopsis (Bignoniaceae) in Aliso 11:2 179-197
  • Henrickson, J. (2014). Rhodotypos in Flora of North America 9 www.eFloras.org (accessed 2025-06-26)
  • Henríquez, C.A. & Simonetti, J.A. (2001). The effect of introduced herbivores upon an endangered tree (Beilschmiedia miersii, Lauraceae) in Biological Conservation 98 69–76
  • Henry, A. & Flood, M. (1919). The History of the London Plane in Proceedings of the Royal Irish Academy 35:B 9-28
  • Henry, A. & McIntyre, M. (1926). The Swamp Cypresses, Glyptostrobus of China and Taxodium of America, with Notes on Allied Genera in Proceedings of the Royal Irish Academy 37 90-116
  • Henry, A. (1915). A New Species of Larch in The Gardeners' Chronicle 3:57 109 [link] (accessed 2026-03-28)
  • Henry, J. (1991). Notice of the Naming and Release of 'Redstone' Cornelian cherry dogwood United States Department of Agriculture Soil Conservation Service, Ecological Sciences and Technology Division, Washington, D.C., [link] (accessed 2025-10-14)
  • Henry, L. (1899). Plantes nouvelles: Cornus bretschneideri sp. nov. in Le Jardin 13 309-310
  • Henry, L. (1910). [Séance du 24 février 1910] Comité d'Arboriculture forestière et d'ornement in Journal de la Société nationale d'horticulture de France 4:11 123-124 [link]
  • Hepting, G.H. (1971). Diseases of Forest and Shade Trees of the United States Agriculture Handbook US Department of Agriculture, Washington DC.
  • Herbert, J. (2005). New combinations and a new species in Morella (Myricaceae) in Novon 15 293–295
  • Herbert, J. (2005). Systematics and biogeography of Myricaceae PhD dissertation, University of St Andrews
  • Herbier Muséum Paris (1917). G. Forrest Plantes de Chine: 5837: Yunnan: Cornus monbeigii, Hemsl. f. glabrata GBIF (accessed 2026-02-11)
  • Heredia-Bobadilla, R-L. et al. (2012). Genetic variability of Sacred Fir (Abies religiosa) in the Nevado de Taluca National Park in International Journal of Biodiversity and Conservation 4:3 130-136
  • Heritage Museums and Gardens (2025). Cape Cod Hydrangea Display Garden [link] (accessed 2025-02-20)
  • Heritage Seedlings & Liners (2021 onwards). [nursery website] [link] (accessed 2021-04-22)
  • Heritage Seedlings (2020). Heritage Seedlings Wholesale Catalog 2021‑2022 Heritage Seedlings and Liners, Salem, OR
  • Herman Geers dwerg & miniatuurplanten (2025). Exochorda racemosa 'Snow Mountain'® [link] (accessed 2025-07-11)
  • Herman, D.E., Stange, C.M. & Quam, V.C. (1996). North Dakota Tree Handbook North Dakota State Soil Conservation Committee; USDA - Natural Resources Conservation Service; NDSU Extension Service; Western Area Power Administration, [link] (accessed 2020-05-18)
  • Hermann, R.K. & Lavender, D.P. (1990). Pseudotsuga menziesii (Mirb.) Franco in Burns, R.M. & Honkala, B.H., Silvics of North America vol 1: Conifers [link] (accessed 2023-08-26)
  • Hermann, R.K. (1982). The genus Pseudotsuga: Historical records and nomenclature Special Publication 2a School of Forestry, Oregon State University
  • Hernández-Vera, G., Navarrete-Heredia, J.L. & Vázquez-García, J.A. (2021). Beetles as floral visitors in the Magnoliaceae: an evolutionary perspective. in Arthropod-Plant Interactions 15 273–283 [link] (accessed 2022-10-11)
  • Hernández‐Ledesma, W.G. et al. (2015). A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. Willdenowia, 45(3), 281–383. in Willdenowia 45:3 282-383 [link] (accessed 2021-03-30)
  • Heronswood Garden (2023). untitled Instagram post [link] (accessed 2024-07-21)
  • Heronswood Garden (2025 onwards). Heronswood Garden [link]
  • Heronswood Nursery (2004). Catalog.
  • Heronswood Nursery Ltd. (1999). Heronswood 1999 [catalog]. Kingston, Washington.
  • Heronswood Nursery Ltd. (2001). Heronswood Nursery 2001 (catalog). Kingston, WA.
  • Herrenkamper Gärten (2022). Meliosma dilleniifolia [link] (accessed 2022-02-22)
  • Herrenkamper Garten (2022). Nursery website [link] (accessed 2022-02-24)
  • Herrera, C.M. (1989). Frugivory and Seed Dispersal by Carnivorous Mammals, and Associated Fruit Characteristics, in Undisturbed Mediterranean Habitats in Oikos 55:2 250-262 [link] (accessed 2023-02-01)
  • Herrick, G.W. (1935). Insect Enemies of Shade Trees Comstock Publishing Company, Ithaca, NY
  • Herrick, J.W. (1977). Iroquois medical botany Ph D Thesis State University of New York at Albany, University at Albany, State University of New York (accessed 2025-12-01)
  • Herrick, W.J. (1995). Iroquois Medical Botany Syracuse University Press, Syracuse, NY
  • Hers, J. (1922). Chinese names of plants: a preliminary list of the trees and shrubs of North Honan in Journal of the North-China Branch of the Royal Asiatic Society 53 105-117
  • Hess, W.J. & Robbins, R.L. (2002). Yucca L. in Flora of North America Editorial Committee (ed), Magnoliophyta: Liliidae: Liliales and Orchidales 26 On-line version Flora of North America North of Mexico,, New York and Oxford, New York and Oxford (accessed 2025-06-16)
  • Hess, W.J. & Stearn, W.T. (1979). The Identity of Cornus citrifolia Weston in Taxon 28:5/6 553-556
  • Hess, W.J. & Stoynoff, N.A. (1998). Taxonomic status of Quercus acerifolia (Fagaceae) and a morphological comparison of four members of the Quercus shumardii complex in Systematic Botany 23 89–100
  • Hess, W.J. (2014). Oemleria Reichenbach in Flora of North America 9 www.eFloras.org (accessed 2025-07-04)
  • Hessayon, D.G. (1997). The Tree & Shrub Expert Expert Books
  • Hesse Baumschulen (1916). Herm. A. Hesse Baumschulen Preisliste 1916-1917 Weener an der Ems, Hannover
  • Hesse, H.A. (1903). Neu und empfehlenswerte Pflanzen usw. in Gartenflora 52 47-48
  • Hesse, H.A. (1905). Hauptpreisverzeichnis der Baumschulen von Herm. A. Hesse 1905-06 Weener, Herm. A. Hesse
  • Hesse, H.A. (1908). Prächtige, neueingeführte, chinesiche Ziersträucher in Mitteilungen der Deutschen Dendrologischen Gesellschaft 17 191 Biodiversity Heritage Library (accessed 2025-07-09)
  • Hesse, H.A. (1909). Einige neue und seltene Gehölze in Mitteilungen der Deutschen Dendrologischen Gesellschaft 18 294–296 Biodiversity Heritage Library (accessed 2025-07-09)
  • Hetman, J. (2019). Magnolia macrophylla [link] (accessed 2021-11-26)
  • Hewitt, G. (2004). Genetic consequences of climatic oscillations in the Quaternary. in Philos. Trans. Ser. B 359 183–195
  • Hewson, H.J. (1989). Fagaceae in Bureau of Flora & Fauna (ed), Flora of Australia 3 97–100 Australian Government Publishing Service, Canberra
  • Heybroek, H.M. (1993). The Dutch elm breeding project in Sticklen, M.B. & Sherald, J.L. (eds), Dutch Elm Disease Research: Cellular and Molecular Approaches 16–25 Springer-Verlag, New York
  • Heybroek, H.M. (2000). Notes on elm breeding and genetics in Dunn, C.P. (ed), The Elms 249–258 (q.v.)
  • Heywood, V. (1968). Petteria in Flora Europaea 2 101
  • Hibberd, S. (1869). New and Beautiful Leaved Plants p.144 Bell and Daldy, London, Biodiversity Heritage Library (accessed 2025-10-27)
  • Hickel, P.R. & Camus, A.A. (1921). Les Chênes d’Indo-Chine. in Annales des sciences naturelles. Botanique. 3:5–6 377–409 Series 10 Biodiversity Heritage Library (accessed 2021-07-18)
  • Hickey, M. & King, C. (2000). The Cambridge Illustrated Glossary of Botanical Terms Cambridge University Press, Cambridge
  • Hickman, J.C. (ed) (1996). The Jepson Manual: Higher Plants of California University of California Press, Berkeley
  • Hicks Nurseries (1920). Home Landscapes: 1920 Descriptive Catalogue and Price List Hicks Nurseries, Westbury, Nassau Co., NY
  • Hicks Nurseries (1920). Old friends and new: Catalogue. Trees, Flowers, Fruits, Fall, 1920 and Winter, 1920-1921 I. Hicks & Son, Westbury, Long Island, N.Y.
  • Hicks Nurseries (1921). Home Landscapes: trees, flowers, fruits. Spring and Summer 1921 Hicks Nurseries, Long Island, N.Y.
  • Hiep, N. T. et al. (2004). Vietnam Conifers: Conservation Status Review 2004. Fauna & Flora International, Hanoi, Vietnam
  • High Beeches Garden (2025). Plant Search [link] (accessed 2025-11-29)
  • High Beeches Gardens (2014). Quercus oxyodon High Beeches Gardens (accessed 2022-02-28)
  • High Country Gardens (2025). Chilopsis linearis 'Monhews' [link] (accessed 2025-08-28)
  • Highdown Gardens (2019). Davidia involucrata var. vilmoriniana [link] (accessed 2019-04-24)
  • Hileman, L.C., Vasey, M.C. & Parker, V.T. (2001). Phylogeny and Biogeography of the Arbutoideae (Ericaceae): Implications for the Madrean-Tethyan Hypothesis in Systematic Botany 26:1 131-143 [link] (accessed 2021-01-15)
  • Hill, E.J. (1896). The Sand Dunes of Northern Indiana and their Flora.—III. in Garden and Forest:448 382-383 23 September 1896
  • Hill, E.J. (1899). A New Biennial-Fruited Oak in Botanical Gazette 27 204–208 Biodiversity Heritage Library (accessed 2024-07-10)
  • Hill, G. (2012). Emory and the Topographical Engineers at San Pasqual in Battlelines: A Bimonthly Newsletter of the San Pasqual Battlefield Volunteer Association 25:1 Jan/Feb California State Parks
  • Hill, K.D. & Johnson, L.A.S. (1991a). Systematic studies in the eucalypts: 4 – New taxa and combinations in Eucalyptus (Myrtaceae) in Telopea 4 321–349
  • Hill, K.D. & Johnson, L.A.S. (1991b). Systematic studies in the eucalypts: 3 – New taxa and combinations in Eucalyptus (Myrtaceae). in Telopea 4 223–267
  • Hill, K.D. & Johnson, L.A.S. (1992). Systematic studies in the eucalypts: 5 – New taxa and combinations in Eucalyptus (Myrtaceae) in Western Australia in Telopea 4 561–634
  • Hill, K.D. & Johnson, L.A.S. (1994). Systematic studies in the eucalypts: 6 – A revision of the coolibahs, Eucalyptus subgenus Symphomyrtus section Adnataria series Oligonanthe subseries Microthecovae (Myrtaceae). in Telopea 5 743–771
  • Hill, K.D. & Johnson, L.A.S. (1995). Systematic studies in the eucalypts: 7 – A revision of the bloodwoods, genus Corymbia (Myrtaceae). in Telopea 6 185–505
  • Hill, K.D. & Johnson, L.A.S. (1998). Systematic studies in the eucalypts: 8 – A review of the Eudesmoid eucalypts, Eucalyptus subgenus Eudesmia. in Telopea 7 375–414
  • Hill, K.D. & Johnson, L.A.S. (2000). Systematic studies in the eucalypts: 10 – New tropical and subtropical eucalypts from Australia and New Guinea (Eucalyptus, Myrtaceae). in Telopea 8 503–539
  • Hill, K.D. (1998). Pinophyta in Orchard, A.E. & McCarthy, P.M. (eds), Flora of Australia 48 545–596 Australian Biological Resources Study, Canberra
  • Hill, K.D. (2002a). Angophora in Harden, G.J. (ed), Flora of New South Wales 2 89–93 Revised edn University of New South Wales Press, Sydney
  • Hill, K.D. (2002b). Eucalyptus in Harden, G.J. (ed), Flora of New South Wales 2 96–164 Revised edn University of New South Wales Press, Sydney
  • Hill, K.D. (2002c). Corymbia in Harden, G.J. (ed), Flora of New South Wales. 2 93–96 Revised edn University of New South Wales Press, Sydney
  • Hill, K.D. (2004). EucaLink: A Web Guide to the Eucalypts [link] (accessed 2009-02-12)
  • Hill, K.D., Johnson, L.A.S. & Blaxell, D.F. (2001). Systematic studies in the eucalypts: 11. New taxa and new combinations in Eucalyptus section Dimaria (Myrtaceae). in Telopea 9 259–318
  • Hill, R. S. and Read, J. (1991). A revised infrageneric classification of Nothofagus (Fagaceae). 105 37 - 72 in Botanical Journal of the Linnean Society 105 37 - 72
  • Hill, S R (2007). Conservation Assessment for Yellowwood Illinois Natural History Survey Technical Reports, [link] (accessed 2021-01-20)
  • Hill, S. & Narizny, S. (2004). The Plant Locator, Western Region Black-Eyed Susan’s Press, Portland, Oregon
  • Hillcoat, D., Lewis, G. & Verdcourt, B. (1980). A new species of Ceratonia (Leguminosae–Caesalpinioideae) from Arabia and the Somali Republic in Kew Bulletin 35 261–271
  • Hillier Nurseries (1970). Hillier's Manual of Trees and Shrubs (1st Edition) Hillier Nurseries, Romsey
  • Hillier Nurseries (1981). Hillier's Manual of Trees and Shrubs (5th Edition) Hillier Nurseries, Romsey
  • Hillier Nurseries (1991). The Hillier Manual of Trees & Shrubs David & Charles, Newton Abbot, Devon
  • Hillier Nurseries (1991). The Hillier Manual of Trees & Shrubs 6th Edition David & Charles, Newton Abbot, Devon
  • Hillier Nurseries (2020 onwards). Commercial trees (online nursery listing) [link] (accessed 2020-03-24)
  • Hillier Nurseries (2021). Leycesteria formosa 'Little Lanterns' [link]
  • Hillier, E.L. (1932). Conifers of the Temperate Regions of the Far East in Chittenden, F.J. (ed), Conifers In Cultivation: The report of the conifer conference held by the Royal Horticultural Society, Nov. 10–12, 1931
  • Hillier, H & Beckett, K (1977). Yellow-flowered Embothrium in J. Roy. Hort. Soc. 102 472-473
  • Hillier, H. G. (1973). The Hillier Manual of Trees and Shrubs
  • Hillier, J. & Coombes, A.J. (2002). The Hillier Manual of Trees and Shrubs David & Charles, Newton Abbot, Devon
  • Hillier, J. (2014). Hillier, the Plants, the People, the Passion Hillier Nurseries Ltd, Winchester
  • Hillier, J.G. & Kelly, J. (eds) (1995). The Hillier Gardener's Guide to Trees and Shrubs (North American Edition) Reader's Digest, Pleasantville, NY / Montreal
  • Hillier, J.G. & Lancaster, R. (eds) (2014). The Hillier Manual of Trees & Shrubs The Royal Horticultural Society, London
  • Hils, M.H. (1993). Taxaceae Gray. Yew Family. in Flora of North America Editorial Committee (ed), Flora of North America North of Mexico 2 423–427 Oxford University Press, New York
  • Hinkley, D. (2014). The Dragon Gate and Emmenopterys [link] (accessed 2019-04-12)
  • Hinkley, D. (2019). Hidden Treasures Of The Arboretum: Tetracentron sinense [link] (accessed 2022-11-03)
  • Hinkley, D. J. (2014). The Utter Magic of the Unexpected [link] (accessed 2025-04-25)
  • Hinkley, D.J. (2003). A Plantsman’s Observations on the Genus Hydrangea in Davidsonia 14:2 31-40 [link] (accessed 2024-01-03)
  • Hinkley, D.J. (2007). Alabama Snow Wreath Horticulture (accessed 2025-07-02)
  • Hinkley, D.J. (2009). The Explorer's Garden Shrubs and Vines from the Four Corners of the World. Timber Press, Portland
  • Hinkley, D.J. (2011). Annual ‘Roundup’ [link] (accessed 2024-12-20)
  • Hinkley, D.J. (2020). Insignis and in Health [link] (accessed 2021-11-11)
  • Hinkley, D.J. (2023). Windcliff Plants (nursery website) [link] (accessed 2023-12-03)
  • Hinsley, S.R. (2004 onwards). Malvaceae Info [link] (accessed 2022-12-20)
  • Hinton, J. & Rzedowski, S. (1972). George B. Hinton, Collector of Plants in Southwestern Mexico 141-155 in Journal of the Arnold Arboretum 53:2 140–161 Biodiveristy Heritage Library
  • Hipp, A. (2010). Hill’s Oak: The Taxonomy and Dynamics of a Western Great Lakes Endemic in Arnoldia 67:4 2–14 Arnold Arboretum (accessed 2024-07-10)
  • Hipp, A., Weber, J. & Srivastava, A. (2010). Whom am I this time? The affinities and misbehaviors of Hill's oak in International Oaks 21 27–36 International Oak Society (accessed 2024-07-10)
  • Hipp, A.L. & Weber, J. (2008). Taxonomy of Hill’s oak (Quercus ellipsoidalis: Fagaceae): Evidence from AFLP Data in Systematic Botany 33:1 148–158 BioOne Digital Library (accessed 2024-07-10)
  • Hirasawa, T. (2017 onwards). Hydrangea: Hydrangea macrophylla f. normalis on Jogasaki-coast of Izu-peninsula... [link] (accessed 2024-10-03)
  • Hirase, S. (1896). On the spermatozoid of Ginkgo biloba 10 325-328 in The Botanical Magazine
  • Hirase, S. (1896). Spermatozoid of Ginkgo biloba 10 171-172 in The Botanical Magazine
  • Hiroki, S. & Kamiya1, T. (2005). Discrimination of hybrids between Quercus variabilis and Q. acutissima by using stellate hairs, and analysis of the hybridization zone in the Chubu District of central Japan in Journal of Phytogeography and Taxonomy 53 145-152 [link] (accessed 2021-02-16)
  • Hirons, A. & Martin, K. (2025). Future Climate Suitability of London’s Public Realm Trees Urban Plant Lab
  • Hirons, A. D. & Sjöman, H. (2019). Tree Species Selection for Green Infrastructure: A Guide for Specifiers, Issue 1.3 Trees & Design Action Group, [link] (accessed 2020-10-26)
  • Hirons, A.D. & Thomas, P.A. (2018). Applied Tree Biology John Wiley & Sons, Hoboken & Chichester
  • Hirose, Y. & Yokoi, M. (1998). Variegated Plants in Color Varie Nine Ltd, Iwakuni, Japan
  • Hirose, Y. (2004). Pieris plant named 'Katsura' in United States Plant Patent USPP15452:P2 [link] (accessed 2026-03-30)
  • Hirose, Y. (2004). Pieris plant named ‘Katsura’ Google Patents (accessed 2026-04-25)
  • Hirota, S.K. et al. (2022). Molecular phylogeny and taxonomy of the Hydrangea serrata complex (Hydrangeaceae) in western Japan, including a new subspecies of H. acuminata from Yakushima. in PhytoKeys 188 49–71 [link] (accessed 2024-11-19)
  • Ho, P.-H. (2000). Cay Co Viet Nam/An Illustrated Flora of Vietnam 2 Nha Xuat Ban Tre, Ho Chi Minh City
  • Hoadley, S. (2021). Wild Hydrangea for the Mid-Atlantic Region Mt. Cuba Center, Hockessin, Delaware, [link] (accessed 2024-04-30)
  • Hoadley, S. (2022). The Wild Hydrangeas of Mt. Cuba Center in Arnoldia 79:3 20-31 [link] (accessed 2024-04-30)
  • Hoang, V.S., Khamseng, N. & Keßler, P.J.A. (2004). Trees of Laos and Vietnam: a field guide to 100 economically or ecologically important species in Blumea 49 201–349
  • Hobbs, K. (2023). In pursuit of new plants – the driving force behind Hillier Nurseries in The Hardy Plant Society Newsletter 2023 11-17
  • Hobhouse, P. (1992). Plants in Garden History. Pavilion Books, London
  • Hocking, L. (2018). Previous Plants of the Month (Somerset Hardy Plant Society) [link] (accessed 2021-03-30)
  • Hodel, D R (2012). In Search of Juania australis with a Few Observations of Jubaea chilensis along the Way in Palms 56:1 11-20
  • Hodel, D. R. & Greby, K. J. (2020). Ornamental landscape trees of Eriobotrya, Photinia, and hybrids with Rhaphiolepis in Southern California in PalmArbor 2020:3 1-82 [link] (accessed 2025-03-06)
  • Hodel, D. R. & Henrich, J. E. (2020). Itoa orientalis in PalmArbor 11 1-29 [link] (accessed 2022-02-13)
  • Hodel, D.L. (2011). A New Nothospecies and Two Cultivars for the Hybrids in Cultivation between Butia odorata and Jubaea chilensis in Palms 55:2 62-71
  • Hoey, M T & Parks, C R (1994). Genetic Divergence in Liquidambar styraciflua, L. formosana, and L. acalycina (Hamamelidaceae) in Systematic Botany 19:2 308 - 316
  • Höfer, M. & Meister, A. (2010). Genome Size Variation in Malus Species in Journal of Botany 2010 Article ID 480873 [link] (accessed 2020-04-15)
  • Hoffman, M. H. A. (2012). Symphoricarpos – sortimentsonderzoek en keuringsrapport in Dendroflora 49 60-101
  • Hoffman, M.H.A. & Houtman, R.T. (2007). Hydrangea paniculata - Euro-trial in Dendroflora 44 55-75 [link] (accessed 2023-09-27)
  • Hoffmann, A. (2005). Flora Silvestre de Chile, Zona Araucana 50-51 Ediciones Fundacion Claudio Gay, Santiago
  • Hoffmann, A. et al. (1998). Plantas Altoandinas en la Flora Silvestre de Chile Ediciones Fundacion Claudio Gay, Santiago
  • Hoffmann, M.H.A. (2007). Weigela – sortimentsonderzoek en keuringsrapport in Dendroflora 44 87-127
  • Hoffmann, M.H.A. (2008). Cultivar Classification of Weigela in Acta Horticulturae 799 31-38 [link]
  • Hoffmann, P. & McPherson, G. (2003). Transfer of Madagascar Glochidion to Phyllanthus (Euphorbiaceae s.l. or Phyllanthaceae) in Novon 13 307–310
  • Hogan, S. (2008). Trees for all Seasons: Broadleaved Evergreens for Temperate Climates Timber Press, Portland, Oregon
  • Hogg, T. (1834). Catalogue of ornamental Trees and Shrubs, Herbaceous and Greenhouse plants: Cultivated and for Sale by Thomas Hogg, Nurseryman, and Florist, at the New-York Botanic Garden in Broadway G. P. Scott, New York
  • Hogue, C.L. (1993). Latin American insects and entomology University of California Press., Berkeley
  • Hohn, T. (1990). Two Quiescent Quercus in Washington Park Arboretum bulletin 53:2 Biodiversity Heritage Library (accessed 2021-11-19)
  • Hohn, T. (1993). The Hardy Quercus stenophylla in Washington Park Arboretum Bulletin 56:4 26–27 Winter 1993/1994 Biodiversity Heritage Library (accessed 2022-05-17)
  • Hojsgaard, D. et al. (2014). Taxonomy and Biogeography of Apomixis in Angiosperms and Associated Biodiversity Characteristics. in Critical Reviews in Plant Sciences 33 414–427
  • Hoko Breeding (2024). The Hydrangea Creators [link] (accessed 2024-11-07)
  • Holden Arboretum (2018). Liriodendron tulipifera [link] (accessed 2018-09-20)
  • Holden Arboretum (2020 onwards). Plant Database Search [link] (accessed 2020-05-07)
  • Holland, R. et al. (2024). Giant sequoia (Sequoiadendron giganteum) in the UK: carbon storage potential and growth rates in Royal Society Open Science 11 [link] (accessed 2024-03-13)
  • Hollick, A. (1888). A Recent Discovery of Hybrid Oaks on Staten Island in Bulletin of the Torrey Botanical Club 15:12 303–309 Biodiversity Heritage Library (accessed 2025-11-30)
  • Holstein, N & Weigend, M. (2017). No taxon left behind? - A critical taxonomic checklist of Carpinus and Ostrya (Coryloideae, Betulaceae) in European Journal of Taxonomy 375 1-52 [link] (accessed 2022-03-14)
  • Holstein, N. & Weigend, M. (2016). An annotated checklist and lectotypification of Ostryopsis Decne. (Betulaceae), with notes on the numbering system in the collections of P.J.M. Delavay in Phytotaxa 282:3 [link] (accessed 2022-05-20)
  • Holstein, N., Tamer, S. & Weigend, M. (2018). The nutty world of hazel names – a critical taxonomic checklist of the genus Corylus (Betulaceae) in European Journal of Taxonomy 409 1-45
  • Holton, B. & Johnson, A.F. (1979). Dune Scrub Communities and Their Correlation with Environmental Factors at Point Reyes National Seashore, California in Journal of Biogeography 6:4 317-328 [link] (accessed 2023-02-08)
  • Holubec, V. (2020). China – Tibet (Photogallery) [link] (accessed 2021-03-30)
  • Holz, A. & Veblen, T.T. (2009). Pilgerodendron uviferum: The Southernmost Tree-Ring Fire Recorder Species in Ecoscience 16:3 322-329 [link] (accessed 2018-07-13)
  • Hong, D-Y. & Blackmore, S. (eds) (2015). Plants of China - a companion to the Flora of China Cambridge University Press
  • Hong, D.-Y. & Pan, K.-Y. (2007). Paeonia cathayana D. Y. Hong K. Y. Pan, a new tree peony, with revision of P. suffruticosa ssp. yinpingmudan in Acta Phytotaxonomica Sinica 45:3 285-288
  • Hong, D.-Y. et al. (1998). Scrophulariaceae in Wu, Z.-Y. & Raven, P.H. (eds), Flora of China: Scrophulariaceae through Gesneriaceae 18 1–212 Science Press/Missouri Botanical Gardens Press, Beijing/St Louis
  • Hong, D.-Y., Pan, K.-Y. & Hong, Y. (1998). Taxonomy of the Paeonia delavayi complex (Paeoniaceae) in Annals of the Missouri Botanical Garden 85:4 554-564 [link] (accessed 2020-10-09)
  • Hong, D.Y. & Pan, K.Y. (1999). A revision of the Paeonia suffruticosa complex (Paeoniaceae). in Nordic Journal of Botany 19:3 289—299
  • Hong, D.Y. (2010). Peonies of the World: Taxonomy and Phytogeography Kew Publishing; Missouri Botanical Garden, London; St Louis
  • Hong, D.Y. (2011). Peonies of the World: Polymorphism and Diversity Kew Publishing; Missouri Botanical Garden, London; St Louis
  • Hong, D.Y., Pan, K.Y. & Turland, N.J. (2001). Paeoniaceae in Wu, Z.Y., Raven, P.H. & Hong, D.Y. (eds), Flora of China 6 127-132 Science Press; Missouri Botanical Garden Press, Beijing; St Louis
  • Hong, M.-P. et al. (2012). A new species of Zabelia (Linnaeaceae) from Korea in Journal of Species Research 1:1 1-3
  • Hong-Wa, C. & Besnard, G. (2013). Intricate patterns of phylogenetic relationships in the olive family as inferred from multi-locus plastid and nuclear DNA sequence analyses: a close-up on Chionanthus and Noronhia (Oleaceae) in Molecular Genetics & Evolution 67:2 367-78 [link] (accessed 2022-08-15)
  • Hoogland, R.D. (1960). Studies in the Cunoniaceae I. The genera Ceratopetalum, Gillbeea, Aisopetalum, and Calycomis. in Australian Journal of Botany 8 318–341
  • Hoogland, R.D. (1979). Studies in the Cunoniaceae II. The genera Caldcluvia, Pullea, Acsmithia, and Spiraeanthemum. in Blumea 25 481–505
  • Hooker, J D (1845). The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the years 1839–1843, under the Command of Captain Sir James Clark Ross. London. I. Flora Antarctica 2:13 241-256
  • Hooker, J D (1860). Azara gilliesii in Curtis's Botanical Magazine 51:t. 5178
  • Hooker, J. D. (1869). Tab. 5793. Acer rufinerve; var. albo-limbata: Red-nerved maple,–white-bordered variety in Curtis's Botanical Magazine 25:3
  • Hooker, J. D. (1901). Sorbus tianshanica. in Curtis Botanical Magazine 127:Tab 7755
  • Hooker, J.D. & Cathcart, J.F. (1855). Illustrations of Himalayan plants L. Reeve, London, Biodiversity Heritage Library (accessed 2021-11-14)
  • Hooker, J.D. & Thomson, T. (1855). Flora Indica: being a systematic account of the plants of British India 1 W. Pamplin, London, [link] (accessed 2021-10-14)
  • Hooker, J.D. & Thomson, T. (1857). Praecursores ad Floram Indicam in Journal of the proceedings of the Linnean Society. Botany 2 1-29, 54-103, 163-179 [link] (accessed 2023-11-19)
  • Hooker, J.D. (1853). The botany of the Antarctic voyage of H.M. discovery ships Erebus and Terror in the Years 1839-1843 under the command of Captain Sir James Clark Ross 2 part 1 Reeve, London, [link] (accessed 2021-08-31)
  • Hooker, J.D. (1854). Himalayan Journals: Or, Notes of a Naturalist in Bengal, the Sikkim and Nepal Himalayas, the Khasia Mountains, etc. 1 John Murray, London, [link] (accessed 2021-11-23)
  • Hooker, J.D. (1855). Illustrations of Himalayan plants: chiefly selected from drawings made for the late J.F. Cathcart, Esq. of the Bengal Civil Service Lovell Reeve, London, [link] (accessed 2021-10-14)
  • Hooker, J.D. (1866). Glyptostrobus pendulus in Curtis's Botanical Magazine 262 (3rd Series)
  • Hooker, J.D. (1869). Rhodotypus kerrioides in Curtis's Botanical Magazine 95 Tab. 5805 (Series 3 Vol. 25) Biodiversity Heritage Library (accessed 2025-06-28)
  • Hooker, J.D. (1878). Flora of British India 2 375-377 London
  • Hooker, J.D. (1879). The Flora of British India (vol. 2) Reeve & Co., London, [link] (accessed 2020-05-07)
  • Hooker, J.D. (1882). Catalpa kaempferi in Curtis’s Botanical Magazine 38:108 t6611 ser. 3
  • Hooker, J.D. (1882). The Flora of British India 2 Reeve & Co., London, [link] (accessed 2021-03-30)
  • Hooker, J.D. (1884). Hydrangea petiolaris Sieb. et Zucc. in Curtis's Botanical Magazine 110 t. 6788 [link] (accessed 2023-12-07)
  • Hooker, J.D. (1885). Tab. 6806. Neviusia alabamensis in Curtis's Botanical Magazine 111 Ser. 3: vol .41 Biodiveristy Heritage Library (accessed 2025-07-02)
  • Hooker, J.D. (1886). The Himalayan Larch in The Gardeners' Chronicle 25 718-719 [link] (accessed 2026-03-29)
  • Hooker, J.D. (1888). The Flora of British India 5 L. Reeve & Co., London, Biodiversity Heritage Library (accessed 2021-07-18)
  • Hooker, J.D. (1895). Pyrus sikkimensis in Botanical Magazine 51 (3rd series) t. 7430 [link] (accessed 2020-05-07)
  • Hooker, W.J. & Arnott, G.A.W. (1839). The Botany of Captain Beechey's Voyage Part 8 Henry G. Bohn, London, Biodiversity Heritage Library (accessed 2025-07-04)
  • Hooker, W.J. (1827). Sida pulchella. Delicate White-flowered Sida. in Curtis's Botanical Magazine 54 2753 [link] (accessed 2023-01-03)
  • Hooker, W.J. (1833). Plagianthus divaricatus. Spreading Plagianthus. in Curtis's Botanical Magazine 60 t. 3271 [link] (accessed 2022-11-17)
  • Hooker, W.J. (1834). Contributions towards a flora of Van Dieman's [sic] Land in Journal of Botany 1 241-258 [link] (accessed 2022-12-20)
  • Hooker, W.J. (1834). Notice concerning Mr. Drummond's collections, made in the southern and western parts of the United States in Journal of Botany: 1:50-60, 183-202 1 50-60, 183-202
  • Hooker, W.J. (1835). Plagianthus ?sidoides. Sida-like Plagianthus. in Curtis's Botanical Magazine 62 3396 [link] (accessed 2022-12-20)
  • Hooker, W.J. (1837). Biographical Sketch of John Fraser, the Botanical Collector in Companion to the Botanical Magazine 2 300–305 Biodiversity Heritage Library
  • Hooker, W.J. (1840). Flora boreali-americana, or, the botany of the northern parts of British America 1 H.G. Bohn, London, [link] (accessed 2020-04-18)
  • Hooker, W.J. (1849). Tab. 4447 Lapageria rosea. in Botanical Magazine 13 t. 4447
  • Hooker, W.J. (1850). Valoradia plumbaginoides in Curtis's Botanical Magazine 76 t. 4487 [link] (accessed 2021-03-30)
  • Hooker, W.J. (1852). On the Chinese Rice Paper in Hooker's Journal of Botany 4 50-54 [link] (accessed 2025-03-14)
  • Hooker, W.J. (1854). Drimys Winteri in Curtis's Botanical Magazine 80 t. 4800 Biodiversity Heritage Library (accessed 2025-03-10)
  • Hooker, W.J. (1854). Tab. 4795: Spiræa grandiflora in Curtis's Botanical Magazine 80 Tab. 4795 Ser. 3 v. 10 Biodiversity Heritage Library (accessed 2025-07-08)
  • Hooker, W.J. (1855). Tab. 4892. Lapageria rosea var. albiflora in Curtis's Botanical Magazine XL Tab. 4892 [link] (accessed 2025-10-03)
  • Hooker, W.J. (1856). Aralia papyrifer, Rice paper plant in Curtis's Botanical Magazine xii:of the Third series [link] (accessed 2025-03-14)
  • Hooker, W.J. (1858). Hydrangea cyanema. Blue-stamened Hydrangea. in Curtis's Botanical Magazine 84 t. 5038 [link] (accessed 2024-12-02)
  • Hooper, V. (2008). Some Recent Experiences Breeding Magnolias in New Zealand in Magnolia 43:83 1-7 [link] (accessed 2022-01-04)
  • Hooper, V. (2010). 20 Years Watching Rootstock in Magnolia 45:87 20-25 [link] (accessed 2022-04-29)
  • Hootman, S. (2012). Hunting the Elusive Bigfoot of China: The Chongqing, Guizhou & Guangxi Expedition to China, 2010 in Rhododendron Species 7 1-28
  • Hootman, S. (2020). The 2018 Expedition to China in Rhododendron Species 15 1-25
  • Hop, M. E. C. M. (2008). Pieris Plant Named 'Passion' in United States Plant Patents USPP19319:P2
  • Hopetoun (2016). Tree of the Year 2016 Hopetoun, Hopetoun News Archive (accessed 2024-12-07)
  • Hopkins, H.C.F. (1998a). A revision of Weinmannia (Cunoniaceae) in Malesia and the Pacific. 1. Introduction and an account of the species of Western Malesia, the Lesser Sunda Islands and the Moluccas. in Adansonia 20 5–42.
  • Hopkins, H.C.F. (1998b). A revision of Weinmannia (Cunoniaceae) in Malesia and the Pacific. 3. New Guinea, Solomon Islands, Vanuatu and Fiji, with notes on the species of Samoa, Rarotonga, New Caledonia and New Zealand. in Adansonia 20 67–106
  • Hopkins, M. (1942). Cercis in North America in Rhodora 44 193–210
  • Hoppe, D.H. (1801). Botanisches Taschenbuch für die Anfänger dieser Wissenschaft und der Apothekerkunst auf das Jahr 1801 Montag und Weissischen Buchhandlung, Regensburg
  • Hori, S. & Hori, T. (1997). A Cultural History of Ginkgo biloba in Japan and the Generic Name Ginkgo 385–411 in Ginkgo Biloba A Global Treasure
  • Hori, T. & Miyamura, S-I. (1997). Contribution to the Knowledge of Fertilisation of Gymnosperms with Flagellated Sperm Cells: Ginkgo biloba and Cycas revoluta in Ginkgo biloba - A Global Treasure
  • Hornibrook, C.M.M. (1939). Dwarf and slow-growing conifers 2nd edition Country Life
  • Hornibrook, M. (1923). Dwarf and Slow-growing Conifers Country Life Ltd., London, Internet Archive (accessed 2025-08-02)
  • Hornoy, B. et al. (2013). Two colonisation stages generate two different patterns of genetic diversity within native and invasive ranges of Ulex europaeus in Heredity 111:5 355–363 [link] (accessed 2022-12-05)
  • Horsford, E. (1887). Sassafras in Zeisberger's Indian dictionary, English, German, Iroquois - the Onondaga and Algonquin [link] (accessed 2024-05-31)
  • Horsman, J. (1984). Silver firs in cultivation in The Plantsman 6 65–100
  • Horticulture (1919). Arnold Arboretum Notes in Horticulture 30:4 82-83 26 July 1919
  • Horticulture Week (2011). RHS lists winter plant losses in move to hardiness revamp [link] (accessed 2018-09-03)
  • Hortus Botanicus Amsterdam (2008 onwards). Garden Explorer [link] (accessed 2020-04-29)
  • Hortus Botanicus Catinensis (2005). Agathus australis Salisb. Parco delle Kentie (accessed 2026-03-16)
  • Hortus Botanicus Leiden (2023). Garden Explorer [link]
  • Hortus Camdenensis (2021). Abelia floribunda [link]
  • Hosie, R. C. (1963). Native trees of Canada. in Bull. Canada Dept. Forest. 61
  • Hou, B.-X. et al. (2003). List of Loropetalum chinense var. rubrum Classification System in Forestr Research (林业科学研) 16:4 430–433 (in Chinese) Agricultural Engineering & Equipment Information Service Platform (accessed 2025-03-24)
  • Hou, J-H., Mi, X-C. & Ma, K-P. (2006). Tree competition and species coexistence in a Quercus-Betula forest in the Dongling Mountains in northern China. in Acta Oecologia 30:2 117–125
  • Hou, Y. et al. (2015). Thousands of RAD-seq Loci Fully Resolve the Phylogeny of the Highly Disjunct Arctic-Alpine Genus Diapensia (Diapensiaceae).
  • House Beautiful (1967). Wayside's catalog is greater than ever in House Beautiful 165 February 1967
  • Houston, L. et al. (2022). Sorbus avonensis: Rosaceae in Curtis's Botanical Magazine 39:4 693-703
  • Houtman, R. (2004). Variegated Trees and Shrubs The Illustrated Encyclopedia. Timber Press, Portland, OR
  • Houtman, R. (2020). Cornus: de top 10 van boomkweker Jelle Eppinga in Vakblad De Hovenier 7:2020 50-53 [link] (accessed 2026-03-06)
  • Houtman, R. T. (1997). Vakbuers Plantarium '97 (Pieris 'Sinfonia') in Dendroflora 34 127
  • Houtman, R. T. (1999). Kueringen (Inspections) 1999 (Pieris 'Carnaval') in Dendroflora 36 120
  • Houtman, R. T. (2000). Plantarium 2000 (Pieris japonica 'Carnaval') in Dendroflora 103
  • Houtman, R. T. (2012). Kueringen 2012 - in Dendroflora 49 102-104
  • Houtman, R.T. & Hoffman, M.H.A. (2009). Winterkornoeljes - sortimentsonderzoek en keuringsrapport 45 in Dendroflora 45 47 - 75
  • Houtman, R.T. (2008). Plantarium 2009 in Dendroflora 46 117
  • Houttuyn, M. (1778). Natuurlyke historie : of, Uitvoerige beschryving der dieren, planten, en mineraalen 2:9 F. Houttuyn, Amsterdam, Biodiversity Heritage Library (accessed 2025-06-20)
  • Hovaria (1999 onwards). Hovaria®, the Special Hydrangea Collection [link] (accessed 2024-11-04)
  • Howard, B. H. & Harrison-Murray, R. S. (1991a). Rooting potential in plum hardwood cuttings: I. Relationship with shoot diameter. in J. Hort. Sci. 66:6 673–680
  • Howard, J.L. (1993). Linnaea borealis. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer)., [link] (accessed 2021-01-24)
  • Howard, R. (1980). Wilson's Magnolias in Magnolia 16:2 1-26
  • Howard, R. A. (1961). Registration lists of cultivar names in Cornus L. in Arnoldia 21:2 9-18
  • Howard, R.A. (1940). Studies of the Icacinaceae, I.: Preliminary taxonomic notes in Journal of the Arnold Arboretum 21:4 461-489
  • Howard, R.A. (1961). Registration lists of cultivar names in Cornus in Arnoldia 21:2 9-18
  • Howard, R.A. (1961). Registration lists of cultivar names in Cornus L. in Arnoldia 21 9-18 [link] (accessed 2021-12-30)
  • Howard, R.A. (1965). A checklist of cultivar names in Weigela in Arnoldia 25 49-69
  • Howard, R.A. (1976). In Defense of the Rev. Dr. Reuben D. Nevius and the Plant Called Neviusia in Arnoldia 36:2 57–65 Biodiversity Heritage Library (accessed 2025-07-03)
  • Howard, R.A. (1980). E.H. Wilson as a botanist. in Arnoldia 40:4 154-193
  • Howe, J. M. (1923). George Rogers Hall, Lover of Plants in Journal of the Arnold Arboretum 4:2 91-98
  • Howe, J.M. (1923). George Rogers Hall, Lover of Plants 4:2 91-98 in Journal of the Arnold Arboretum [link] (accessed 2020-05-07)
  • Howell, C.J., Kelly, D. & Turnbull, M.H. (2002). Moa ghosts exorcised? New Zealand’s divaricate shrubs avoid photoinhibition. in Functional Ecology 16:2 232-240 [link] (accessed 2021-09-16)
  • Howell, J.T. (1931). A variant of the coast live oak in Madroño 2 38–39
  • Howick Hall Arboretum (2021 onwards). Database [link] (accessed 2021-10-27)
  • Hoyt Arboretum (2008 onwards). Plant Database [link] (accessed 2019-06-28)
  • Hrib, M., Koblížek, J. & Madĕra, P. (2002). Juglans x intermedia Carr. an interesting finding at the Židlochovice Forest Enterprise. in Journal of Forest Science 48 475-481 [link] (accessed 2019-10-29)
  • Hsieh, L. (1992). Origin and distribution of Ginkgo biloba 68:5 in THE FORESTRY CHRONICLE
  • Hsu, E. & Andrews, S. (2005). Tree of the Year: Liquidambar in International Dendrology Society Yearbook 2004 11–45
  • Hsu, E. (2006). Magnolla obovata in Magnolia 41:80 10-18 [link] (accessed 2021-12-03)
  • Hsu, E. (2011). Harold Comber and his introductions in The Plantsman 10 (new series):4 248-253
  • Hsu, E., Boland, T. & Camelbeke, K. (2008). Stewartia in Cultivation in The Plantsman 7:2 78-87
  • Hsu, T.-Z. (1982). Classification, distribution and phylogeny of the genus Enkianthus in Acta Botanica Yunnanica 4:4 355-362
  • Hsu, Y-C., Jane, W-N. & Chen, S-H. (2016). Inflorescence and floral development in Trochodendron aralioides (Trochodendraceae) in Plant Systematics and Evolution 303 403-412
  • Hsu, Y. & Wang, C. J. (1983). A new species of Betula from Yunnan in Acta Bot. Yunnan 5:4 381–382
  • Hu, H. H. (1929). Two New Species of Carpinus from Szechuan in Journal of the Arnold Arboretum 10 154-6
  • Hu, S-y. (1959). A Monograph of the Genus Paulownia in Quarterly Journal of the Taiwan Museum 12:1-2 1-54
  • Hu, S.-Y. (1949a). The genus Ilex in China in Journal of the Arnold Arboretum 30 233–344
  • Hu, S.-Y. (1949b). The genus Ilex in China, II in Journal of the Arnold Arboretum 30 348–387
  • Hu, S.-Y. (1950). The genus Ilex in China, III in Journal of the Arnold Arboretum 31 39–80
  • Hu, S.-Y. (1953). Ilex in Taiwan and the Liukiu Islands in Journal of the Arnold Arboretum 34 138–162
  • Hu, S.-Y. (1954-1956). A monograph of the genus Philadelphus in Journal of the Arnold Arboretum 35-37 275-333, 52-109, 15-90
  • Hu, S.-Y. (1960). A revision of the genus Clethra in China in Journal of the Arnold Arboretum 41:2 164-190
  • Hu, S.-Y. (1980). Eleutherococcus vs. Acanthopanax in Journal of the Arnold Arborerum 61:1 107-111
  • Hu, S.Y. (1980). The Metasequoia Flora and its Phytogeographic Significance in Journal of the Arnold Arboretum 61 41-94 [link] (accessed 2021-06-08)
  • Hu, S.Y. (1980). The Metasequoia flora and its phytogeographical significance. in Journal of the Arnold Arboretum 61 41-94
  • Huang, C., Zhang, Y. & Bartholomew, B. (1999). Fagaceae in Wu, Z.-Y. & Raven, P.H. (eds), Flora of China: Cycadaceae through Fagaceae 4 314–400 Science Press/Missouri Botanical Gardens Press, Beijing/St Louis
  • Huang, C.C. et al. (2008). Isolation and characterization of 11 polymorphic microsatellite loci from Fatsia polycarpa (Araliaceae), an element of evergreen forests in Taiwan in Conservation Genetics 9:5 1333-1335 Research Gate (accessed 2025-10-29)
  • Huang, C.Q., Hu, G.S. & Xia, X.M. (2001). A New Variety of Loropetalum from Hunan in Bulletin of Botanical Research 21:4 508–509 [link] (accessed 2025-03-22)
  • Huang, D.I. (2010). Phylogenetic and population genetic investigations into the systematics of the Lupinus albifrons complex (Fabaceae) and the perennial lupines of western North America Claremont Graduate University, [link] (accessed 2023-02-08)
  • Huang, L. et al. (2021). Traditional application and modern pharmacological research of Eucommia ulmoides Oliv. in Chinese Medicine 16 73 [link] (accessed 2023-01-05)
  • Huang, S Q et al. (1999). Floral syndrome and insect pollination of Liriodendron chinense in Acta Botanica Sinica 41:3 241
  • Huang, S. & Bartholomew, B. (2001). Decumaria Linnaeus in Wu, Z.Y. & Raven, P.H. (eds), Flora of China 8 403 Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, [link] (accessed 2023-06-01)
  • Huang, S. & Bartholomew, B. (2001). Dichroa Loureiro in Wu, Z.Y. & Raven, P.H. (eds), Flora of China 8 404–406 Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, [link] (accessed 2023-06-01)
  • Huang, S. & Bartholomew, B. (2001). Pileostegia J.D. Hooker & Thomson in Wu, Z.Y. & Raven, P.H. (eds), Flora of China 8 403-4 Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, [link] (accessed 2023-06-01)
  • Huang, T-C (ed) (1996). Flora of Taiwan 2 Editorial Committee of the Flora of Taiwan, Taipei, Plants of Taiwan (accessed 2020-08-29)
  • Huang, T-C. (ed) (1998). Flora of Taiwan (2nd Edition) IV 145 Editorial Committee of the Flora of Taiwan, Taipei, Taiwan, Department of Botany, National Taiwan University
  • Huang, T.-C. (1997). Daphniphyllaceae in Flora Malesiana, Series I 13 145–168
  • Huang, X. et al. (2023). Hydrangea arborescens ‘Annabelle’ Flower Formation and Flowering in the Current Year. in Plants 12:24 4103 [link] (accessed 2024-04-29)
  • Huang, Y., Fritsch, P.W. & Shi, S. (2003). A revision of the imbricate group of Styrax series Cyrta (Styracaceae) in Asia in Annals of the Missouri Botanical Garden 90 491–553
  • Huang, Y., Xiao, L. & Zhang, Z. (2019). The genomes of pecan and Chinese hickory provide insights into Carya evolution and nut nutrition in GigaScience 8:5 [link] (accessed 2019-11-22)
  • Huber, K. (2004). Lowrey, founder of native-plant movement, heped refocus area gardens in Houston Chronicle [link] (accessed 2023-05-24)
  • Hudson, J. J. et al. (2022). Propagation of beaked hazelnut (Corylus cornuta) from softwood cuttings in Native Plants Journal 23:1 33-39
  • Hudson, T. (2004). Recent woody plant arrivals in Cornwall in McMillan Browse, P. (ed), Gardening on the Edge Alison Hodge, Penzance
  • Hudson, T. (2013). Edward Needham 1932-2008 in The Plantsman 12 256-261
  • Hudson, T. (2015). Quercus utilis Hu & W.C. Cheng Found in Vietnam in International Oaks 26 33–36
  • Hudson, T. (2022). Hydrangea peruviana × serratifolia Tregrehan Garden Blog (accessed 2025-03-09)
  • Huertas Nafría, R (2025). Palmeras en la Ciudad de Resistencia. Juania australis [link]
  • Hufford, L. (2001). Ontogeny and morphology of the fertile flowers of Hydrangea and allied genera of tribe Hydrangeeae (Hydrangeaceae). in Botanical Journal of the Linnean Society 137:2 139-187 [link] (accessed 2023-07-03)
  • Hughes, C. (1998). Monograph of Leucaena (Leguminosae – Mimosoideae) in Systematic Botany Monographs 55 1–244
  • Hughes, C. (2005). Leucaena leucocephala IUCN/SSC Invasive Species Specialist Group (ISSG), Global Invasive Species Database (accessed 2008-12-23)
  • Hughes, C.E. & Atchison, G.W. (2015). The ubiquity of alpine plant radiations: from the Andes to the Hengduan mountains. in New Phytologist 207 275-282
  • Hughes, D. (2002). Sophora: the kowhais of New Zealand in Combined Proceedings International Plant Propagators Society 52 201–205
  • Hughes, J. & Welton, J. (2009). Our Magnificent Zelkova Dulwich Trees Profile No. 2 in Dulwich Society Newsletter Spring 2009
  • Huh, M. & Huh, H. (1999). Genetic Diversity and Population Structure of Alnus hirsuta (Betulaceae) in Korea in Journal of Plant Research 112 437-442 [link] (accessed 2020-12-04)
  • Huiling, L. et al. (2020). Fatsia japonica-derived hierarchical porous carbon for supercapacitators with high energy density and long cycle life in Frontiers in Chemistry 8 [link] (accessed 2025-10-28)
  • Hukusima, T. et al. (2013). Phytosociology of the Beech (Fagus) Forests in East Asia Springer Science & Business Media
  • Hultén, E. & Fries, M. (1986). Atlas of North European vascular plants: north of the Tropic of Cancer 1-3 Koeltz Scientific Books, Königstein
  • Hultén, E. (1927). Flora of Kamtchatka and the adjacent islands in Kongl. Sveska Vetensk. Acad. Handl. Ser. 3, 5–8
  • Hultén, E. (1968). Flora of Alaska and neighbouring territories. Stanford University Press
  • Hulten, E. (1970). The Circumpolar plants II.
  • Hultine, K.R. et al. (2003). Hydraulic redistribution by deep roots of a Chihuahuan Desert phreatophyte. in Tree Physiology 23 353-360
  • Humaña, A.M. & Valdivia, C.E. (2004). Breeding system in Crinodendron patagua Mol. (Elaeocarpaceae), an endemic tree of central Chile in Gayana Botánica 61:2 55-59
  • Humphrey, B. (2023). Whiter than white in The Plant Review 52-55 March
  • Humphrey, B. (2024). A surprisingly hardy Chinese maple in The Plant Review 40-43 March
  • Humphrey, B.E. (2019). The Bench Grafter's Handbook: Principles and Practice CRC Press, Boca Raton, FL
  • Humphrey, B.E. (2020). Bench Grafting Cyclobalanopsis Oaks in International Oaks 31 69-76 International Oak Society (accessed 2021-11-01)
  • Hunt, D. (1983). Tab 873. Picea likiangensis (Pinaceae). in Curtis’s Botanical Magazine 183 155–157
  • Hunt, D. (ed) (1993a). Betula: Proceedings of the IDS Betula Symposium 2–4 October 1992 International Dendrology Society, Richmond, Surrey
  • Hunt, D. (ed) (1998). Not so dandy after all in Magnolias and their Allies 9–20 International Dendrology Society/The Magnolia Society, Sherborne, Dorset
  • Hunt, D. R. & Schilling, A. D. (1981). Pieris formosa 'Henry Price' in The Plantsman 3:3 189
  • Hunt, D.M. (1986). Distribution of Quercus arkansana in Georgia in Castanea 51:3 183–187 JSTOR (accessed 2025-11-24)
  • Hunt, D.R. (1970). Proposal for the conservation of the generic name Osmaronia E.L. Greene (1891) against Oemleria H.G.L. Reichenbach (1841). (Rosaceae) Nomina Conservanda Proposta in Taxon 19:3 481 Wiley (accessed 2025-07-05)
  • Hunt, D.R. (1970). Tab. 582 Osmaronia cerasiformis Rosaceae in Curtis's Botanical Magazine 178:1 New Series
  • Hunt, D.R. (1981). Dichroa versicolor in Curtis's Botanical Magazine 183:3 107-110
  • Hunt, R.S. (1993b). Abies Miller in Flora of North America Editorial Committee (ed), Flora of North America 2 354–362 Oxford University Press, New York
  • Hunter, T. (1883). Woods, Forests, and Estates of Perthshire Henderson, Robertson, & Hunter, Perth
  • Huntley, B. & Birks, H. J. B. (1983). An atlas of past and present pollen maps for Europe: 0–13,000 years ago Cambridge University Press
  • Huong, T. T. et al. (2017). Investigation of anti-inflammatory lignans from the leaves of Symplocos sumuntia Buch-Ham ex D Don (Symplocaceae) in Tropical Journal of Pharmaceutical Research 16:9 2191
  • Hurr, K. (2019). Oak Trials in New Zealand International Oak Society (accessed 2025-08-13)
  • Hurr, K.A. et al. (1999). Evidence for the recent dispersal of Sophora (Leguminosae) around the Southern Oceans: molecular data in Journal of Biogeography 26 565–577
  • Hurusawa, I. (1973). Classification and seed morphology. in Journal of the faculty of Science. University of Tokyo. Sect. III Botany XI:6 195-242
  • Hutchins, G. (1980). New Zealand Plants. A descriptive list of Species and Cultivars as in cultivation at County Park Nursery, Hornchurch, Essex. G. Hutchins County Park Nursery, Hornchurch, Essex
  • Hutchins, G. (1996). Podocarpus G. Hutchins, Hornchurch, Essex
  • Hutchins, G. (2006). The genus Hoheria in cultivation in The Plantsman 5:2 100-106
  • Hutchinson, P. (2005). Schefflera thriving in Scotland in The Plantsman 4 126 (n.s.)
  • Hutson, D. & Cupp, M.J. (2000). Sassafras in Cupp, M.J. (ed), Toxicology and Clinical Pharmacology of Herbal Products. Forensic Science and Medicine Humana Press, Totowa, NJ, [link] (accessed 2024-05-31)
  • Huxley, A., Griffiths, M. & Levy, M. (1992). The New Royal Horticultural Society Dictionary of Gardening Macmillan, London
  • Hwang, M.-H., Garshelis, D.L. & Wang, Y. (2002). Diets of Asiatic Black Bears in Taiwan with methodological and geographical comparisons in Ursus 13 111–125
  • Hwang, S-k (1962). The Anatomy of Some Important Taiwan Woods The University of British Columbia, The University of British Columbia Library (accessed 2022-05-19)
  • Hwang, S.-M. & Grimes, J. (1996). Styracaceae in Wu, Z.-Y. & Raven, P.H. (eds), Flora of China: Myrsinaceae through Loganiaceae 15 253–271 Science Press/Missouri Botanical Gardens Press, Beijing/St Louis
  • Hwang, S.-M. (1987). A preliminary Study on Dichroa Lour. in Acta Phytotaxonomica Sinica (In Chinese & Latin with English abstract) 25:5 384-389 [link] (accessed 2024-12-12)
  • Hyde, M. A. et al. (2025). Flora of Zimbabwe [link] (accessed 2025-05-26)
  • Hydrangea Breeders Association (2018 onwards). [organization website] [link] (accessed 2023-11-17)
  • Hydrangea Derby (2023 onwards). Our Plants [link] (accessed 2023-09-27)
  • Hydrangea Derby (2024 onwards). A brief history of the macrophylla cultivars [link] (accessed 2024-11-06)
  • Hydrangea Derby (2025 onwards). Welcome to Hydrangea Derby [link] (accessed 2025-02-20)
  • Hydrangeas Plus (2024 onwards). [nursery website] [link] (accessed 2024-07-21)
  • Hyland, B.P.M. (1978). A revision of the genus Agathis (Araucariaceae) in Australia. With an appendix by S.G.M.Carr and D.J.Carr. in Brunonia 1:1 103–115
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
_
_
_
_
_
_

Contact the editors at