Completed Groups
As of March 2023 Trees and Shrubs Online contains over 12,000 individual articles on woody plants hardy in the northern temperate zones. The texts are derived from three major sources: the Eighth Edition of Bean’s Trees and Shrubs Hardy in the British Isles (1976–81) together with the Supplement (1988); New Trees: Recent Introductions to Cultivation (2009); and brand new text specially commissioned for Trees and Shrubs Online.
Many groups are still in their Bean format, some combine text from Bean, the Supplement, and from New Trees, and as funding is secured to commission revisions these are brought fully up to date. The following list identifies the major groups that have been fully updated so far. It is updated whenever a new account is published:
- Abelia – published April 2021
- Abies – published June 2021
- Acanthus – published February 2019
- Acer (genus account) – published September 2020
- Acer Section Acer (Eurasian species) – published November 2020
(A. caesium; A. × coriaceum; A. granatense; A. heldreichii; A. hyrcanum; A. monspessulanum; A. obtusifolium; A. opalus; A. × pseudoheldreichii; A. pseudoplatanus; A. sempervirens; A. velutinum) - Acer Section Macrantha – published July 2020
(A. capillipes; A. caudatifolium; A. chienii; A. × conspicuum; A. crataegifolium; A. davidii; A. forrestii; A. komarovii; A. laxiflorum; A. maximowiczii; A. metcalfii; A. micranthum; A. pectinatum; A. pensylvanicum; A. rubescens; A. rufinerve; A. sikkimense; A. tegmentosum; A. tschonoskii; and the unattributed selections A. ‘Candy Stripe’; A. ‘Cascade’; A. ‘Gimborn’; A. ‘Mindavi’; A. ‘Red Flamingo’; A. ‘Serpentine’; A. ‘Silver Cardinal’; A. ‘Silver Ghost’; A. ‘White Tigress’) - Acer Section Palmata Series Sinensia – published September 2020
(A. calcaratum; A. campbellii; A. elegantulum; A. erianthum; A. fenzelianum; A. flabellatum; A. oliverianum; A. pubinerve; A. serrulatum; A. sinense; A. tonkinense; A. wilsonii) - Acer Section Platanoidea – published November 2020
(A. amplum; A. campestre; A. cappadocicum; A. chapaense; A. divergens; A. fulvescens; A. × hillieri; A. lobelii; A. longipes; A. miaotaiense; A. miyabei; A. okamotoanum; A. pictum; A. platanoides; A. shenkanense; A. tenellum; A. tibetense; A. turkestanicum; A. truncatum; A. × zoeschense; and the unattributed selection A. ‘Gold Coin’) - Alniphyllum – published June 2018
- Anagyris – published April 2022
- Anarthrophyllum – published April 2022
- Anthyllis – published March 2023
- Araucaria – published October 2018
- Arbutus – published April 2021
- Asterotrichion – published December 2022
- Astragalus – published March 2023
- Broussonetia – published January 2022
- Buddleja – African and American species published January 2021, Asian species and hybrids published December 2021
- Carpinus – published May 2022
- Carrierea – published February 2022
- Carya – published July 2020
- Cedrus – published June 2020
- Ceratostigma – published April 2021
- Cercidiphyllum – published July 2021
- Chionanthus – published October 2022
- Cladrastis – published February 2021
- Corylus – published April 2023
- + Crataegomespilus – published February 2023
- × Crataemespilus – published February 2023
- Crinodendron – published October 2022
- Cyclocarya – published July 2020
- Davidia – published 2019
- Desfontainia – published July 2023
- Diabelia – published April 2021
- Diervilla – published August 2019
- Dipelta – published April 2021
- Embothrium – published November 2023
- Emmenopterys – published 2019
- Engelhardia – published July 2019
- Enkianthus – published January 2023
- Erinacea – published December 2021
- Eucommia – published January 2023
- Eucryhpia – published February 2019
- Euptelea – published January 2023
- Fagus – published August 2019
- Fitzroya – published 2018
- Forsythia – published April 2022
- Glyptostrobus – published July 2023
- Halesia – published July 2019
- Heptacodium – published July 2019
- Hibbertia – published October 2018
- Hippocrepis – published February 2023
- Hoheria – published October 2021
- Idesia – published February 2022
- Itoa – published February 2022
- Juglans – published February 2020
- Kalopanax – published September 2023
- Kolkwitzia – published August 2019
- Lagarostrobos – published February 2022
- Leycesteria – published August 2021
- Lindera – published August 2023
- Linnaea – published February 2021
- Liquidambar – published June 2021
- Liriodendron – published January 2019
- Lupinus – published February 2023
- Lyonothamnus – published September 2020
- Magnolia – published May 2022
- Margyricarpus – published December 2020
- Malus – published April 2021
- Manoao – published February 2022
- Meliosma – published March 2022
- Mespilus – published February 2023
- Metasequoia – published July 2021
- Morus – published June 2022
- Neoshirakia – published February 2019
- Nothofagus – published December 2020
- Nyssa – published June 2021
- Ononis – published March 2023
- Ostrya – published May 2022
- Ostryopsis – published May 2022
- Oxydendrum – published June 2021
- Paeonia – published December 2020
- Paulownia – published September 2022
- Perkinsiodendron – published October 2019
- Pilgerodendron – published October 2018
- Plagianthus – published November 2022
- Platycarya – published February 2020
- Platyosprion – published February 2021
- Plumbago – published April 2021
- Podocarpus – published July 2023
- Poliothyrsis – published February 2022
- Pterocarya – published February 2020
- Pterostyrax – published December 2017
- Pseudotaxus – published July 2020
- Pseudotsuga – published October 2023
- Quercus Section Ilex – published February 2021
(Q. acrodonta; Q. alnifolia; Q. aquifolioides; Q. aucheri; Q. × auzendei; Q. baloot; Q. baronii; Q. coccifera; Q. cocciferoides; Q. dolicholepis; Q. engleriana; Q. floribunda; Q. franchetii; Q. gilliana; Q. guyavifolia; Q. ilex; Q. lanata; Q. leucotrichophora; Q. lodicosa; Q. longispica; Q. monimotricha; Q. pannosa; Q. phillyreoides; Q. rehderiana; Q. rotundifolia; Q. semecarpifolia; Q. senescens; Q. setulosa; Q. spinosa; Q. tarokoensis; Q. tatakaensis; Q. tungmaiensis; Q. utilis) - Quercus Section Cerris – published July 2021
(Q. acutissima; Q. afares; Q. brantii; Q. castaneifolia; Q. cerris; Q. chenii; Q. × crenata; Q. euboica; Q. hispanica; Q. ithaburensis; Q. × libanerris; Q. libani; Q. look; Q. macrolepis; Q. × numidica; Q. × schneideri; Q. suber; Q. trojana; Q. variabilis) - Quercus Section Cyclobalanopsis – published August 2022
(Q. acuta; Q. augustini; Q. bambusifolia; Q. delavayi; Q. gilva; Q. glauca; Q. hondae; Q. hypargyraea; Q. kiukiangensis; Q. lamellosa; Q. lobbii; Q. longinux; Q. macrocalyx; Q. morii; Q. myrsinifolia; Q. oxyodon; Q. poilanei; Q. salicina; Q. schottkyana; Q. sessilifolia; Q. stenophylloides) - Rehderodendron – published October 2020
- Rhoiptelea– published March 2020
- Sciadopitys – published April 2023
- Sinojackia – published December 2019
- Staphylea – published October 2018
- Stewartia – published 2017
- Styrax – published 2017
- Symphoricarpos – published June 2021
- Thujopsis – published August 2021
- Tilia – published September 2020
- Trochodendron – published November 2022
- Ulex – published December 2022
- Vesalea – published April 2021
- Weigela – published March 2020
- Zabelia – published April 2021
- Zelkova – published October 2023
- Zenobia – published July 2021