Hagenia |
Hagenia abyssinica | African Redwood, Kosso |
Hakea |
Halesia | Silverbells |
Halesia carolina | Carolina Silverbells, Carolina Silverbells, Florida Silverbells, Little Silverbells, Mountain Silverbells, Opossum-wood, Shittim-wood, Snowdrop tree |
Halesia diptera | Two-winged silverbell, Snowdrop tree |
× Halimiocistus |
Halimium |
Halimodendron |
Halimodendron halodendron | Salt Tree |
Halleria |
Halleria lucida | African Honeysuckle, Tree Fuchsia |
Halocarpus |
Hamamelis | Witch-Hazel |
Hamamelis × intermedia |
Hamamelis japonica | Japanese Witch-Hazel |
Hamamelis mollis | Chinese Witch-Hazel |
Hamamelis vernalis |
Hamamelis virginiana | Virginian Witch-Hazel |
Haplopappus |
Harrimanella |
Hebe | Shrubby Veronica |
Hebe amplexicaulis |
Hebe anomala |
Hebe armstrongii |
Hebe brachysiphon |
Hebe buchananii |
Hebe buxifolia |
Hebe canterburiensis |
Hebe carnosula |
Hebe chathamica |
Hebe colensoi |
Hebe cupressoides |
Hebe decumbens |
Hebe dieffenbachii |
Hebe diosmifolia |
Hebe elliptica |
Hebe epacridea |
Hebe × franciscana |
Hebe gibbsii |
Hebe gigantea |
Hebe glaucophylla |
Hebe gracillima |
Hebe hectoris |
Hebe hulkeana | New Zealand Lilac |
Hebe leiophylla |
Hebe ligustrifolia |
Hebe loganioides |
Hebe lycopodioides |
Hebe macrantha |
Hebe macrocarpa |
Hebe matthewsii |
Hebe ochracea |
Hebe parviflora |
Hebe pimeleoides |
Hebe pinguifolia |
Hebe propinqua |
Hebe rakaiensis |
Hebe recurva |
Hebe rigidula |
Hebe salicifolia |
Hebe speciosa |
Hebe stricta |
Hebe tetrasticha |
'Alicia Amherst' |
'Andersonii' |
'Autumn Glory' |
'Balfouriana' |
'Bowles's Hybrid' |
'Carl Teschner' |
'Carnea' |
'Edinensis' |
'Ettrick Shepherd' |
'Gauntlettii' |
'Great Orme' |
'Highdownensis' |
'La Seduisante' |
'Lindsayi' |
'Margery Fish' |
'Marjorie' |
'McEwanii' |
'Midsummer Beauty' |
'Mrs Winder' |
'Simon Delaux' |
'Spender's Seedling' |
'Tricolor' |
'Viceroy' |
'White Gem' |
Hedera | Ivy |
Hedera canariensis |
Hedera colchica |
Hedera helix | Common Ivy |
'Adam' |
'Atropurpurea' |
'Buttercup' |
'Cavendishii' |
'Conglomerata' |
'Conglomerata Erecta' |
'Deltoidea' |
'Digitata' |
'Donerailensis' |
poetarum | Poet's Ivy |
'Glacier' |
'Glymii' |
'Goldheart' |
'Gracilis' |
'Green Ripple' |
'Helford River' |
'Hibernica' | Irish Ivy |
'Hibernica Aurea' |
'Hibernica Maculata' |
'Lobata Major' |
'Marginata Elegantissima' |
'Marginata Robusta' |
'Marmorata Minor' |
'Minima' |
'Ovata' |
'Palmata' |
'Pedata' | Bird's Foot Ivy |
'Russell Gold' |
'Sagittifolia' |
'Sheen Silver' |
'Spectabilis Aurea' |
taurica |
Hedera nepalensis |
Hedera pastuchovii |
Hedera rhombea |
Hedlundia |
Hedycarya |
Hedycarya arborea | Pigeonwood, Poraikaiwihiri |
Heimia |
Helianthemum | Sun Rose |
Helianthemum apenninum |
Helianthemum canum |
Helianthemum croceum |
Helianthemum lunulatum |
Helianthemum nummularium |
Helianthemum oelandicum |
'Afflick' |
'Alice Howorth' |
'Ben Attow' |
'Ben Avon' |
'Ben Fhada' |
'Ben Hope' |
'Ben Ledi' |
'Ben Lui' |
'Ben More' |
'Ben Nevis' |
'Ben Venue' |
'Bengal Rose' |
'Cerise Queen' |
'Fire Dragon' |
'Fireball' |
'Henfield Brilliant' |
'Jubilee' |
'Mrs C W Earle' |
'Mrs Clay' |
'Rhodanthe Carneum' |
'St John's College Yellow' |
'Sudbury Gem' |
'The Bride' |
'Tigrinum Plenum' |
'Watergate Rose' |
'Wisley Pink' |
'Wisley Primrose' |
Helichrysum |
Helwingia |
Hemiptelea |
Heptacodium |
Heptacodium miconioides | Seven-son Flower |
Heteromeles |
Hibbertia | Guinea Flower |
Hibbertia aspera |
Hibbertia scandens | Gold Guinea Plant |
Hibiscus |
Hippocrepis |
Hippocrepis emerus | Scorpion Senna |
Hippophaë |
Hoheria | Lacebark, Ribbonwood |
Hoheria 'Ace of Spades' |
Hoheria angustifolia | Narrow-leaved Lacebark, Narrow-leaved Houhere |
Hoheria 'Borde Hill' |
Hoheria glabrata | Mountain Lacebark |
Hoheria 'Glory of Amlwch' |
Hoheria 'Hutwhit' |
Hoheria lyallii | Mountain Ribbonwood |
Hoheria populnea | Lacebark, Houhere, Ribbonwood |
Hoheria sexstylosa | Lacebark, Houhere, Long-leaved Lacebark, Graceful Lacebark, Houhiongaonga |
Hoheria 'Stardust' |
Holboellia |
Holodiscus |
Holodiscus discolor | Oceanspray, Ironwood, Creambush |
Hovenia |
Hudsonia |
Hudsonia ericoides | False Heather |
[Hudsonia ericoides] H tomentosa | Beach Heather |
Huodendron |
Hydrangea |
Hydrangea anomala |
Hydrangea arborescens |
Hydrangea aspera |
Hydrangea heteromalla |
Hydrangea involucrata |
Hydrangea longipes |
Hydrangea macrophylla |
'Altona' |
'Amethyst' |
'Ami Pasquier' |
'Ayesha' |
'Blue Wave' |
'Bouquet Rose' |
'Domotoi' |
'Europa' |
'Fisher's Silverblue' |
'Frillibet' |
'Generale Vicomtesse de Vibraye' ('Vibraye') |
'Gentian Dome' ('Enziandom') |
'Kluis Superba' |
'Lanarth White' |
'Lilacina' |
'Maréchal Foch' |
'Mariesii' |
'Miss Belgium' |
'Mme A Riverain' |
'Mme E Mouillère' |
'Niedersachsen' |
'Nigra' ('Mandshurica') |
'Otaksa' |
'Parsifal' |
'Pia' |
'Princess Beatrix' |
'Quadricolor' |
'Rosea' |
normalis |
'Veitchii' |
'Violetta' |
'Westfalen' |
'White Wave' |
Hydrangea paniculata |
Hydrangea petiolaris |
Hydrangea platyarguta |
Hydrangea quercifolia | Oak-leaved Hydrangea |
Hydrangea sargentiana |
Hydrangea scandens |
Hydrangea serrata |
Hydrangea serratifolia |
Hymenanthera |
Hymenosporum |
Hymenosporum flavum | Australian Native Frangipani, Sweetshade |
Hypericum |
Hypericum acmosepalum |
Hypericum addingtonii |
Hypericum aegypticum |
Hypericum androsaemum | Tutsan |
Hypericum augustinii |
Hypericum balearicum |
Hypericum bellum |
Hypericum buckleyi |
Hypericum calycinum | Rose of Sharon, Aaron's Beard |
Hypericum cerastoides |
Hypericum chinense |
Hypericum choisianum |
Hypericum cordifolium |
Hypericum coris |
Hypericum × cyathiflorum |
Hypericum densiflorum |
Hypericum 'Eastleigh Gold' |
Hypericum empetrifolium |
Hypericum ericoides |
Hypericum forrestii |
Hypericum frondosum |
Hypericum galioides |
Hypericum grandifolium |
Hypericum 'Hidcote' |
Hypericum hircinum |
Hypericum hookeranum |
Hypericum hypericoides |
Hypericum × inodorum |
Hypericum kalmianum |
Hypericum kouytchense |
Hypericum leschenaultii |
Hypericum lobbii |
Hypericum monogynum |
Hypericum × moseranum |
Hypericum × moserianum |
Hypericum nudiflorum |
Hypericum olympicum |
Hypericum patulum |
Hypericum prolificum |
Hypericum reptans |
Hypericum revolutum |
Hypericum stellatum |
Hypericum subsessile |
Hypericum wilsonii |
Hypericum xylosteifolium |
Hyssopus |
Hyssopus officinalis | Hyssop |