Plants — D
- Dalea compacta Compact Prairie Clover
- Dalea purpurea purple prairie clover
- Danae Alexandrian laurels
- Daphne Daphne (plant)
- Daphne mezereum February Daphne
- Daphniphyllum calycinum Calyx-shaped Tigernanmu
- Dasiphora fruticosa Alpine Cinquefoil
- Dasymaschalon lomentaceum
- Datura Angel's Trumpets
- Datura inoxia Datura innoxia
- Datura metel Datura
- Datura stramonium Common Thorn-apple
- Datura wrightii Hairy Thorn-apple
- Daucus carota Carrot
- Davallia divaricata
- Davallia formosana
- Davallia mariesii Squirrel’s-foot fern
- Davallia solida giant hare's foot fern
- Debregeasia orientalis Edible debregeasia
- Decaschistia parviflora
- Deinbollia oblongifolia Dune soapberry
- Delphinium Larkspur
- Delphinium dictyocarpum
- Delphinium elatum Alpine Delphinium
- Delphinium nudicaule Canyon larkspur
- Delphinium peregrinum Violet Larkspur
- Delphinium talyschense
- Dendrobium catenatum
- Dendrobium linawianum
- Dendrobium plicatile
- Dendrocnide meyeniana
- Dendrocnide sinuata
- Dendrolobium triangulare
- Dendropanax morbiferus
- Derris elliptica derris
- Derris scandens Malay jewelvine
- Derris taiwaniana Bean
- Derris trifoliata Common Derris
- Descurainia sophia
- Desfontainia taique
- Desmos chinensis Chinese Desmos
- Desmostachya bipinnata Crowfoot Grass
- Dianthera pectoralis
- Dianthus barbatus
- Dicentra Bleeding Heart
- Dichroa febrifuga Chinese-quinine
- Dictamnus albus Burningbush
- Dictamnus angustifolius
- Dictamnus hispanicus
- Dieffenbachia seguine
- Diervilla lonicera
- Digitalis Foxglove
- Digitalis ciliata
- Digitalis ferruginea Rusty Foxglove
- Digitalis grandiflora
- Digitalis lanata Digitalis
- Digitalis obscura Spanish Rusty Foxglove
- Digitalis purpurea Common Foxglove
- Dillenia aurea
- Dillenia indica Chulta
- Dillenia suffruticosa Shrubby dillenia
- Dilobeia thouarsii
- Dimocarpus longan dragon's-eye
- Dioscorea alata Greater Yams
- Dioscorea bulbifera Air Potato
- Dioscorea caucasica
- Dioscorea collettii var. hypoglauca
- Dioscorea communis Black Bryony
- Dioscorea esculenta Asiatic yam
- Dioscorea filiformis
- Dioscorea floribunda yam
- Dioscorea hispida Yam (vegetable)
- Dioscorea nipponica Fan-leaf mountain yam
- Dioscorea oppositifolia Chinese yam
- Dioscorea polystachya Chinese Yam
- Diospyros decandra
- Diospyros ferrea
- Diospyros malabarica
- Diospyros mollis
- Diphasiastrum complanatum Christmas green
- Diplazium donianum
- Diplazium esculentum Vegetable fern
- Dipsacus asper
- Dipterocarpus intricatus
- Dipterocarpus retusus
- Dipteryx odorata Dutch tonka-bean
- Disa alinae
- Disporum calcaratum
- Dolichandrone spathacea mangrove trumpet tree
- Donax canniformis Bemban
- Draba nemorosa
- Dracaena Dragon Trees
- Dracaena cochinchinensis
- Dracaena reflexa Pleomele
- Dracocephalum Dragon's Head
- Dracocephalum moldavica Moldavian Balm
- Dracocephalum rupestre Rupestrine dragonhead
- Dracontomelon dao Argus pheasant tree
- Dregea sinensis
- Dregea volubilis
- Drimia maritima Maritime Squill
- Drosera rotundifolia Common Sundew
- Drynaria
- Drynaria roosii
- Dryopteris crassirhizoma Shield fern
- Dryopteris filix-mas Common Male Fern
- Dryopteris fragrans Fragrant Fern
- Duboisia corkwood trees
- Dunbaria villosa Villous dunbaria
- Durio zibethinus King of Fruits
- Dysphania ambrosioides American Goosefoot
- Dytiscidae Diving Beetles