• (1) Dabanus acuminatus - Dactylis pubescens
• (2) Dactylis pungens - Dactylorhiza majalis subsp. sphagnicola
• (3) Dactylorhiza majalis 'Glasnevin' - Dahlia 'Aitara Majesty'
• (4) Dahlia 'Aki-no-shirabe' - Dahlia 'Bill Andrews'
• (5) Dahlia 'Bill Holmberg' - Dahlia 'Cream Alva's'
• (6) Dahlia 'Cream Beauty' - Dahlia 'Forncett's Furnace'
• (7) Dahlia 'Forrestal' - Dahlia 'Hy Lustre'
• (8) Dahlia 'Hy Mallow' - Dahlia 'Lilac Shadow'
• (9) Dahlia 'Lilac Taratahi' - Dahlia 'Nargold'
• (10) Dahlia 'Narooma Princess' - Dahlia 'Red and White Fubuki'
• (11) Dahlia 'Red and White' - Dahlia 'Spassmacher'
• (12) Dahlia 'Spectacular' - Dahlia 'White Lady Linda'
• (13) Dahlia 'White Lightning' - Dalbergia chontalensis
• (14) Dalbergia cibix - Dalea catatona
• (15) Dalea caudata - Dalechampia psilogyne
• (16) Dalechampia purpurata - Danaea xenium
• (17) Danaea ypori - Daphne acutiloba 'Fragrant Cloud'
• (18) Daphne aff. giraldii - Daphne rupestris
• (19) Daphne salicifolia - Darniella cyrenaica
• (20) Darniella gymnomaschala - Dasylirion palaciosii
• (21) Dasylirion palmeri - Daucus carota 'Adelaide'
• (22) Daucus carota 'Adonis' - Daucus stenopterus
• (23) Daucus subsessilis - Davilla angustifolia
• (24) Davilla aspera - Declieuxia sclerophylla
• (25) Declieuxia spergulifolia - Delesseria squamariae
• (26) Delesseria stephanocarpa - Delphinium 'Boudicca'
• (27) Delphinium 'Bridesmaid' - Delphinium 'Vierzehnheiligen'
• (28) Delphinium 'Violet Arrow' - Delphinium korshinskyanum
• (29) Delphinium kuanii - Dematium gramineum
• (30) Dematophyllum salsoloides - Dendrobium Akazukin
• (31) Dendrobium Akbar Soetisna - Dendrobium Aussie Angel
• (32) Dendrobium Aussie Aurora - Dendrobium binnendijkii
• (33) Dendrobium binoculare - Dendrobium Carl Ludwig Bundt
• (34) Dendrobium Carl Ludwig Nottebohm - Dendrobium Collette Fleur Simpson
• (35) Dendrobium collinum - Dendrobium David Choon
• (36) Dendrobium David Collier - Dendrobium Elyas Omar
• (37) Dendrobium emarginatum - Dendrobium Fran's World
• (38) Dendrobium Frances Henton - Dendrobium Graceful Star
• (39) Dendrobium Gracemere - Dendrobium herbaceum
• (40) Dendrobium Herbert Ong - Dendrobium Janice Kerr
• (41) Dendrobium Janice Tanaka - Dendrobium Kazuyuki
• (42) Dendrobium Keahi - Dendrobium lanceolatum
• (43) Dendrobium lancifolium - Dendrobium Lovely Virgin
• (44) Dendrobium Low Kok Yin - Dendrobium Maui's Golden Charm
• (45) Dendrobium Mauna Lani - Dendrobium Miura Angel
• (46) Dendrobium Miura Dream - Dendrobium nobile var. alboluteum
• (47) Dendrobium nobile var. cooksonianum - Dendrobium parishii
• (48) Dendrobium Parisienne - Dendrobium President Magsaysay
• (49) Dendrobium President Marcos - Dendrobium River Royal
• (50) Dendrobium Riverdye - Dendrobium Serene Chang
• (51) Dendrobium Serevent - Dendrobium Star Child
• (52) Dendrobium Star Dancer - Dendrobium Ted Darcie
• (53) Dendrobium Ted Davis - Dendrobium Utohime
• (54) Dendrobium Utones - Dendrobium wilsonii
• (55) Dendrobium Wina Loo - Dendrochilum beccarii
• (56) Dendrochilum bicallosum - Dendrokingstonia nervosa
• (57) Dendroleandria leandrii - Dendrophthoe sphenoidea
• (58) Dendrophthoe sphenoides - Dentaria integrifolia
• (59) Dentaria integrifolia californica - Derris polyantha
• (60) Derris polyphylla - Desmanthus cooleyi
• (61) Desmanthus covillei - Desmodium cuspidatum var. cuspidatum
• (62) Desmodium cuspidatum var. longifolium - Desmoncus aereus
• (63) Desmoncus americanus - Deutzia scabra 'Variegata'
• (64) Deutzia scabra 'Watereri' - Diacrium bicornutum var. indivisum
• (65) Diacrium bicornutum × Schomburgkia undulata - Dianthus 'Anders Faith'
• (66) Dianthus 'Anders Fay Seagrove' - Dianthus 'Design'
• (67) Dianthus 'Desmond' - Dianthus 'Johnny'
• (68) Dianthus 'Joker' - Dianthus 'Omaggio'
• (69) Dianthus 'Omagio' - Dianthus 'Sway Gem'
• (70) Dianthus 'Sway Joy' - Dianthus camboi
• (71) Dianthus campestris - Dianthus gracilis subsp. drenowskianus
• (72) Dianthus gracilis 'Simulans' - Dianthus Shirley = 'Aroshir'
• (73) Dianthus Shirly Smith = 'Aroshirly' - Diascia 'Trailing Antique Rose'
• (74) Diascia 'Whisper Apricot' - Dicentra scandens
• (75) Dicentra scandens 'Athens Yellow' - Dichanthium humilius
• (76) Dichanthium insculptum - Dichoespermum juncoides
• (77) Dichoespermum koenigii - Dicksonia spruceana
• (78) Dicksonia squarrosa - Dicranella cerviculatula
• (79) Dicranella chrysea - Dicranopteris elegantula
• (80) Dicranopteris emarginata - Dicranum obliquatum
• (81) Dicranum oedithecium - Dictyosphaeria spinifera
• (82) Dictyosphaeria ulvacea - Didymodon diaphanobasis
• (83) Didymodon dicranoides - Dieffenbachia 'Sublime'
• (84) Dieffenbachia 'Tahiti' - Digaster biracemea
• (85) Digaster keasti - Digitaria ekmanii
• (86) Digitaria elatior - Dillenia cauliflora
• (87) Dillenia celebica - Dimorphocalyx balakrishnanii
• (88) Dimorphocalyx beddomei - Diomphala clava-herculis
• (89) Diomphala clavaherculis - Dioscorea clacarea
• (90) Dioscorea claessensii - Dioscorea martensis
• (91) Dioscorea martiana - Dioscorea tambillensis
• (92) Dioscorea tamifolia - Diospyros consanguinea
• (93) Diospyros consolatae - Diospyros micrantha
• (94) Diospyros microcarpa - Diospyros tuberculosa
• (95) Diospyros tubicalyx - Diphyscium chiapense subsp. unipapillosum
• (96) Diphyscium cumberlandianum - Diplazium camptocarpon
• (97) Diplazium caracasanum - Diplazium shepherdioides
• (98) Diplazium siamense - Diploglottis cunninghami
• (99) Diploglottis cunninghamii - Diplospora mollissima
• (100) Diplospora parviflora - Diplusodon koehnei
• (101) Diplusodon lanceolatus - Dipterocarpus tempehes
• (102) Dipterocarpus thurifer - Disa Jim Walker
• (103) Disa Jimmy Orchard - Dischidia chinensis
• (104) Dischidia chinghungensis - Disocactus kimnachii
• (105) Disocactus lankesteri - Dissosperma claviculata
• (106) Dissothrix gardneri - Distichorchis ellipsophylla
• (107) Distichorchis hepatica - Ditrichum brevifolium
• (108) Ditrichum brevirostre - Dodecatheon alpinum alpinum
• (109) Dodecatheon alpinum f. nanum - Dodonaea viscosa f. arizonica
• (110) Dodonaea viscosa f. burmanniana - Dolichos smilacinus
• (111) Dolichos soja - Dombeya pseudo-populus
• (112) Dombeya pseudopopulus - Doritaenopsis 'Ever Spring Prince Harlequin'
• (113) Doritaenopsis 'Ever Spring Prince' - Doritaenopsis Brother Little Fortune
• (114) Doritaenopsis Brother Little Hatter - Doritaenopsis Cool Jewel
• (115) Doritaenopsis Cool Snow - Doritaenopsis Fuller's Dinner
• (116) Doritaenopsis Fuller's Dress - Doritaenopsis Hsinying Queen
• (117) Doritaenopsis Hsinying Redfire - Doritaenopsis Kinu Spot Monkey
• (118) Doritaenopsis Kinu Spot Sweater - Doritaenopsis Maytime
• (119) Doritaenopsis McFarlane Classic - Doritaenopsis Okay Gold
• (120) Doritaenopsis Okay Seven - Doritaenopsis Rainy Doll
• (121) Doritaenopsis Ralderose - Doritaenopsis Skye's Pink Chiffon
• (122) Doritaenopsis Skye's Rose - Doritaenopsis Taida Firesalu
• (123) Doritaenopsis Taida Flame - Doritaenopsis Ton Jy Jaguar
• (124) Doritaenopsis Ton Jy Koolena - Doronicum grandiflorum carpaticum
• (125) Doronicum grandifolium - Dorstenia telekii
• (126) Dorstenia tenera - Dovyalis tristis
• (127) Dovyalis verrucosa - Draba huetii
• (128) Draba humillima - Draba weberi
• (129) Draba werffii - Dracocephalum scrobiculatum
• (130) Dracocephalum setigerum - Drapetes ericoides
• (131) Drapetes laxus - Drimiopsis botryoides subsp. prostrata
• (132) Drimiopsis botryoides botryoides - Drosera burkeana
• (133) Drosera burmanii - Drummondia prerepens
• (134) Drummondia prorepens - Drymaria gracilis
• (135) Drymaria gracillima - Dryopteris acrosora
• (136) Dryopteris acrostichoides - Dryopteris filix-mas 'Linearis Cristata'
• (137) Dryopteris filix-mas 'Linearis Polydactyla' - Dryopteris pittsfordensis
• (138) Dryopteris plantaginea - Drypetes assamica
• (139) Drypetes aubrevillei - Duchesnia crispa
• (140) Duckea cyperaceoidea - Dunalia angustifolia
• (141) Dunalia arborescens - Duschekia firma
• (142) Duschekia fruticosa - Dypsis hirtula
• (143) Dypsis hovomantsina - Dysoxylum laxiracemosum
• (144) Dysoxylum laxum - Dzieduszyckia limnobis