Scientific names: D
- Daboecia cantabrica
- Dactylicapnos macrocapnos
- Dactylorhiza foliosa
- Dactylorhiza fuchsii
- Dactylorhiza maculata
- Dactylorhiza majalis
- Dactylorhiza praetermissa
- Dactylorhiza saccifera
- Dahlia 'Thomas A. Edison
- Dahlia Akita
- Dahlia Alexander von Humboldt
- Dahlia Alloway Cottage
- Dahlia Almand Joy
- Dahlia Almand's Climax
- Dahlia Ambition
- Dahlia Anatoll
- Dahlia Arabian Night
- Dahlia Arc de Triomphe
- Dahlia Art Deco
- Dahlia Autumn Fairy
- Dahlia Autumn Sunburst
- Dahlia Babylon Red
- Dahlia Barbara
- Dahlia Beretta
- Dahlia Berliner Kleene
- Dahlia Bishop of Auckland
- Dahlia Bishop of Canterbury
- Dahlia Bishop of Lancaster
- Dahlia Bishop of Leicester
- Dahlia Bishop of Llandaff
- Dahlia Bishop of Oxford
- Dahlia Black Jack
- Dahlia Blütenmeer
- Dahlia Boogie Woogie
- Dahlia Bora Bora
- Dahlia Candy Cane
- Dahlia Caproz Pissas
- Dahlia Caribbean Fantasy
- Dahlia Chat Noir
- Dahlia Checkers
- Dahlia Chianti
- Dahlia Clarence
- Dahlia Cycloop
- Dahlia Cynthia
- Dahlia Dark Angels Scarlet
- Dahlia David Howard
- Dahlia Deuil du Roi Albert
- Dahlia Don Lorenzo
- Dahlia Donauturm
- Dahlia Dutch Carneval
- Dahlia Dynastie
- Dahlia Edge of Gold
- Dahlia Edinburgh
- Dahlia Egelborg
- Dahlia Emory Paul
- Dahlia Engelhardts Matador
- Dahlia Epping Forest
- Dahlia Erich Mehlis
- Dahlia Erika Krause
- Dahlia Erna Panzer
- Dahlia Eurydike
- Dahlia Excalibur
- Dahlia Explosion
- Dahlia Fascination
- Dahlia Fatima
- Dahlia Franz Kafka
- Dahlia Fubuki Red and White
- Dahlia Fürst Pückler
- Dahlia Gainesville
- Dahlia Gallery Rembrandt
- Dahlia Gartenfreude
- Dahlia Gazani
- Dahlia Ginny Ann
- Dahlia Giraffe
- Dahlia Gitts Perfection
- Dahlia Gladiator
- Dahlia Globetrotter
- Dahlia Glühwurm
- Dahlia Grape Expectations
- Dahlia Großenhain
- Dahlia Gryson's Naomi
- Dahlia Gräfin Cosel
- Dahlia Haley Jane
- Dahlia Hans Peter Cornils
- Dahlia Hapet First David
- Dahlia Hapet Ideal
- Dahlia Harzfee
- Dahlia Heatwave
- Dahlia Heidehof
- Dahlia Heini
- Dahlia Herzdame
- Dahlia Honka Red
- Dahlia Honka Yellow
- Dahlia Jenny
- Dahlia Jescot Julie
- Dahlia Jugendliebe
- Dahlia Karen
- Dahlia Karma Bon Bini
- Dahlia Karma Naomi
- Dahlia Karneol
- Dahlia Kazusa-shiranami
- Dahlia Key West
- Dahlia Killesberg
- Dahlia Lady Darlene
- Dahlia Lambada
- Dahlia Light Music
- Dahlia Lila Pompon
- Dahlia Lilac Time
- Dahlia Lorona Dawn
- Dahlia Ludwig Helfert
- Dahlia Mainaugold
- Dahlia Mathilde Houston
- Dahlia Maxime
- Dahlia Mevr. Clement Andries
- Dahlia Mick's Peppermint
- Dahlia Mozart
- Dahlia Nathalie
- Dahlia Nenekazi
- Dahlia Nescio
- Dahlia Night Butterfly
- Dahlia Olivia
- Dahlia Olympic Fire
- Dahlia Optimist
- Dahlia Oriental Dream
- Dahlia Otto Waalkes
- Dahlia Otto's Thrill
- Dahlia Palmengarten Frankfurt
- Dahlia Pfitzers Joker
- Dahlia Pianella
- Dahlia Picara
- Dahlia Pinelands Princess
- Dahlia Pink Charm
- Dahlia Pink Pastelle
- Dahlia Polka
- Dahlia Pooh
- Dahlia Prefait Demange
- Dahlia Prince Valiant
- Dahlia Purple Pearl
- Dahlia Purple Taiheijo
- Dahlia Ramona
- Dahlia Rebecca's World
- Dahlia Red Royal Diana
- Dahlia Rembrandt
- Dahlia Rip City
- Dahlia Rose Creme
- Dahlia Rothesay Reveller
- Dahlia Rotkäppchen
- Dahlia Sagittarius
- Dahlia Saitenspiel
- Dahlia Sandra
- Dahlia Sanssouci
- Dahlia Satelite
- Dahlia Scarlet Star
- Dahlia Schloss Reinbek
- Dahlia Schwieters Gelb
- Dahlia Severins Triumph
- Dahlia Siedlerfreude
- Dahlia Silbersee
- Dahlia Silver Years
- Dahlia Sorbet
- Dahlia Splendeur Noire
- Dahlia Stefan Bergerhoff
- Dahlia Stefanie Hertel
- Dahlia Sugar Cane
- Dahlia Sunny Boy
- Dahlia Sunshine
- Dahlia Taratahi Rubi
- Dahlia Tartan
- Dahlia Thüringia
- Dahlia Troll
- Dahlia Tutu
- Dahlia Ulf Merbold
- Dahlia Vancouver
- Dahlia Vielliebchen
- Dahlia Weston Spanish Dancer
- Dahlia Who Dun It
- Dahlia Wine and Roses
- Dahlia Worton Blue Streak
- Dahlia Yellow Happiness
- Dahlia Zakuro Hime
- Dahlia Zorro
- Dahlia australis
- Dahlia coccinea
- Dahlia dissecta
- Dahlia excelsa
- Dahlia merckii
- Dahlia pinnata
- Dais cotinifolia
- Dalechampia spathulata
- Dampiera stricta
- Daphne alpina
- Daphne altaica
- Daphne cneorum
- Daphne genkwa
- Daphne laureola subsp. laureola
- Daphne mezereum
- Daphne pontica
- Daphne reichsteinii
- Daphne x burkwoodii
- Daphne x burkwoodii 'Somerset'
- Daphniphyllum himalayense
- Darmera peltata
- Dasylirion serratifolium
- Datisca cannabina
- Datura metel
- Datura stramonium
- Daucus carota
- Daucus carota subsp. sativus
- Davidia involucrata
- Decaisnea fargesii
- Decodon verticillatus
- Deherainia smaragdina
- Deinostigma eberhardtii
- Delonix regia
- Delosperma aberdeenense
- Delosperma congestum
- Delosperma cooperi
- Delosperma cortigerum
- Delosperma lavisiae
- Delosperma nubigenum
- Delphinium elatum
- Delphinium elatum 'Abgesang'
- Delphinium elatum 'Adria'
- Delphinium elatum 'Alpenbote'
- Delphinium elatum 'Augenweide'
- Delphinium elatum 'Berghimmel'
- Delphinium elatum 'Blue Bird'
- Delphinium elatum 'Christel'
- Delphinium elatum 'Dämmerung'
- Delphinium elatum 'Fernzünder'
- Delphinium elatum 'Finsteraarhorn'
- Delphinium elatum 'Firnglanz'
- Delphinium elatum 'Frühschein'
- Delphinium elatum 'Gletscherwasser'
- Delphinium elatum 'Highlander'
- Delphinium elatum 'Jubelruf'
- Delphinium elatum 'Klingsor'
- Delphinium elatum 'Lanzenträger'
- Delphinium elatum 'Million Dollar Sky'
- Delphinium elatum 'Morgentau'
- Delphinium elatum 'Ouvertüre'
- Delphinium elatum 'Pagan Purples'
- Delphinium elatum 'Perlmutterbaum'
- Delphinium elatum 'Polarnacht'
- Delphinium elatum 'Rosenquarz'
- Delphinium elatum 'Sommernachtstraum'
- Delphinium elatum 'Tempelgong'
- Delphinium elatum 'Traumulus'
- Delphinium elatum 'Tropennacht'
- Delphinium elatum 'Vierzehnheiligen'
- Delphinium elatum 'Zauberflöte'
- Delphinium scaposum var. scaposum
- Delphinium speciosum
- Delphinium staphisagria
- Delphinium x belladonna 'Atlantis'
- Delphinium x cultorum
- Delphinium x cultorum 'Black Knight'
- Delphinium x cultorum 'Blue Springs'
- Delphinium x cultorum 'Magic Fountains Lilac Pink'
- Delphinium x cultorum 'Magic Fountains Sky Blue'
- Delphinium x cultorum 'Magic Fountains White'
- Dendrobium Amitabh Bachchan
- Dendrobium Andrea Millar
- Dendrobium Begum Khaleda Zia
- Dendrobium Benazir Bhutto
- Dendrobium Burana Jade
- Dendrobium Joaquim Alberto Chissano
- Dendrobium Margaret Thatcher
- Dendrobium Michael Jeffrey
- Dendrobium Siew May
- Dendrobium Sydney Brenner
- Dendrobium Toh Pink
- Dendrobium White Fairy
- Dendrobium amabile
- Dendrobium amethystoglossum
- Dendrobium aphyllum
- Dendrobium chrysanthum
- Dendrobium farmeri
- Dendrobium fimbriatum
- Dendrobium linguella
- Dendrobium nobile
- Dendrobium phalaenopsis
- Dendrobium primulinum
- Dendrobium speciosum
- Dendrobium speciosum var. grandiflorum
- Dendrobium thyrsiflorum
- Dendrobium x thwaitesae-veitchii
- Dendrocalamus giganteus
- Dendrochilum cobbianum
- Dendrochilum glumaceum
- Dendrochilum gracile
- Dendrochilum magnum
- Dendrochilum simile
- Derwentia perfoliata
- Deschampsia cespitosa
- Deschampsia cespitosa 'Goldschleier'
- Deschampsia cespitosa 'Tardiflora'
- Desfontainia spinosa
- Deuterocohnia meziana
- Deutzia Mont Rose
- Deutzia Strawberry Fields
- Deutzia Yuki Snowflake
- Deutzia compacta 'Lavender Time'
- Deutzia discolor
- Deutzia gracilis
- Deutzia grandiflora
- Deutzia parviflora
- Deutzia purpurascens
- Deutzia purpurascens 'Kalmiiflora'
- Deutzia reflexa
- Deutzia scabra 'Candidissima'
- Deutzia x elegantissima
- Deutzia x hybrida 'Mont Rose'
- Deutzia x hybrida 'Tourbillon Rouge'
- Deutzia x kalmiiflora
- Deutzia x lemoinei
- Deutzia x rosea
- Deutzia x wilsonii
- Dianella tasmanica
- Dianthus Coral Reef
- Dianthus alpinus
- Dianthus amurensis
- Dianthus arenarius
- Dianthus barbatus
- Dianthus barbatus 'Noverno Clown'
- Dianthus caryophyllus 'Sunflor Odessa'
- Dianthus chinensis
- Dianthus chinensis 'Snowfire'
- Dianthus deltoides
- Dianthus deltoides 'Roseus'
- Dianthus gratianopolitanus
- Dianthus gratianopolitanus 'Bath's Pink'
- Dianthus gratianopolitanus 'Eydangeri'
- Dianthus myrtinervius
- Dianthus plumarius
- Dianthus seguieri
- Dianthus sternbergii
- Dianthus sylvestris subsp. tergestinus
- Diascia Breeze Orange
- Diascia vigilis 'Darla Light Pink'
- Dicentra cucullaria
- Dicentra eximia
- Dicentra macrocapnos
- Dicentra spectabilis
- Dicentra spectabilis 'Alba'
- Dichelostemma ida-maia
- Dichondra argentea 'Silver Falls'
- Dichorisandra thyrsiflora
- Dicksonia antarctica
- Dictamnus albus
- Didiscus caeruleus
- Dieffenbachia maculata 'Exotica'
- Dieffenbachia maculata 'Kamilla'
- Dietes grandiflora
- Digitalis Digiplex
- Digitalis ferruginea
- Digitalis ferruginea 'Gelber Herold'
- Digitalis ferruginea subsp. schischkinii
- Digitalis grandiflora
- Digitalis lamarckii
- Digitalis lanata
- Digitalis leucophaea
- Digitalis lutea
- Digitalis lutea subsp. australis
- Digitalis minor
- Digitalis obscura
- Digitalis parviflora
- Digitalis purpurea
- Digitalis purpurea 'Alba'
- Digitalis purpurea 'Camelot White'
- Digitalis purpurea 'Pam's Choice'
- Digitalis purpurea 'Pink Gin'
- Digitalis thapsi
- Digitalis thapsi 'Spanish Peaks'
- Digitalis trojana
- Dillenia grandifolia
- Dillenia suffruticosa
- Dimorphotheca ecklonis
- Dimorphotheca ecklonis 'Dalina Tosca'
- Dimorphotheca ecklonis 'Jamboana Light Purple'
- Dimorphotheca ecklonis 'Nasinga Purple'
- Dimorphotheca ecklonis 'Orange Flame'
- Dimorphotheca pluvialis
- Dinema polybulbon
- Dionaea muscipula
- Dioon edule
- Dioscorea balcanica
- Dioscorea bulbifera
- Dioscorea caucasica
- Dioscorea communis
- Dioscorea japonica
- Dioscorea villosa
- Diospyros blancoi
- Diospyros kaki
- Diospyros kaki 'Vainiglia'
- Dipelta floribunda
- Diphylleia cymosa
- Dipidax triquetra
- Dipladenia sanderi
- Dipladenia sanderi 'Sundaville Classic Cream Pink'
- Dipladenia sanderi 'Sundaville Cream Pink'
- Diplocarpon rosae
- Dipsacus fullonum
- Dipsacus laciniatus
- Dipsacus sativus
- Disa uniflora
- Disporum smilacinum
- Dissotis plumosa
- Dissotis rotundifolia
- Dodecatheon meadia
- Dodecatheon meadia 'Goliath'
- Dolichandra unguis-cati
- Dolichos lablab
- Dombeya buettneri
- Dombeya wallichii
- Doritis pulcherrima
- Doronicum orientale 'Goldzwerg'
- Doronicum plantagineum
- Dorotheanthus bellidiformis
- Dorotheanthus gramineus
- Dorotheanthus oculatus
- Dorstenia bahiensis
- Doryanthes excelsa
- Doryanthes palmeri
- Dovyalis hebecarpa
- Draba athoa
- Draba bruniifolia
- Draba dedeana
- Draba lasiocarpa
- Draba paysonii
- Dracaena draco
- Dracaena marginata
- Dracaena reflexa
- Dracocephalum prattii
- Dracophyllum secundum
- Dracunculus vulgaris
- Drimia maritima
- Drosera aliciae
- Drosera binata
- Drosera capensis
- Drosera ericksoniae x pulchella
- Drosera filiformis
- Drosera intermedia x filiformis
- Drosera rotundifolia
- Drosera spathulata
- Drosophyllum lusitanicum
- Dryandra nivea subsp. nivea
- Dryas octopetala
- Dryas x suendermannii
- Dryobalanops aromatica
- Dryopteris affinis
- Dryopteris affinis 'Crispa'
- Dryopteris affinis 'Cristata'
- Dryopteris erythrosora
- Dryopteris erythrosora var. prolifica
- Dryopteris expensa
- Dryopteris filix-mas
- Dryopteris uniformis
- Drypis spinosa
- Dunalia tubulosa
- Duranta erecta
- Dyckia fosteriana
- Dyckia frigida
- Dyckia remotiflora
- Dypsis decaryi
- Dypsis leptocheilos
- Dypsis lutescens
- Dysphania anthelmintica