| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| DEANS | Delphinium andersonii Gray var. scaposum (Greene) Welsh | Delphinium scaposum | Ranunculaceae
|
| DEAN | Delphinium andersonii Gray | Anderson's larkspur | Ranunculaceae
|
| DEANA | Delphinium andesicola Ewan ssp. amplum (Ewan) Ewan | Delphinium andesicola | Ranunculaceae
|
| DEAN2 | Delphinium andesicola Ewan | Chiricahua Mountain larkspur | Ranunculaceae
|
| DEAN5 | Delphinium antoninum Eastw. | Tracy's larkspur | Ranunculaceae
|
| DEAP | Delphinium apachense Eastw. | Delphinium parishii ssp. parishii | Ranunculaceae
|
| DEAZN | Delphinium azureum Michx. var. nortonianum (Mackenzie & Bush) Palmer & Steyermark | Delphinium carolinianum ssp. carolinianum | Ranunculaceae
|
| DEAZ | Delphinium azureum Michx. | Delphinium carolinianum ssp. carolinianum | Ranunculaceae
|
| DEBA | Delphinium bakeri Ewan | Baker's delphinium | Ranunculaceae
|
| DEBA2 | Delphinium barbeyi (Huth) Huth | subalpine larkspur | Ranunculaceae
|
| DEBA9 | Delphinium basalticum Warnock | basalt larkspur | Ranunculaceae
|
| DEBIB | Delphinium bicolor Nutt. ssp. bicolor | little larkspur | Ranunculaceae
|
| DEBIC | Delphinium bicolor Nutt. ssp. calcicola Warnock & Vanderhorst | little larkspur | Ranunculaceae
|
| DEBI | Delphinium bicolor Nutt. | little larkspur | Ranunculaceae
|
| DEBL | Delphinium blochmaniae Greene | Delphinium parryi ssp. blochmaniae | Ranunculaceae
|
| DEBR | Delphinium brachycentrum Ledeb. | northern larkspur | Ranunculaceae
|
| DEBR4 | Delphinium brownii Rydb. | Delphinium glaucum | Ranunculaceae
|
| DEBUD | Delphinium burkei Greene ssp. distichiflorum (Hook.) Ewan | Delphinium burkei | Ranunculaceae
|
| DEBUD2 | Delphinium burkei Greene var. distichiflorum (Hook.) St. John | Delphinium burkei | Ranunculaceae
|
| DEBU | Delphinium �burkei Greene (pro sp.) | | Ranunculaceae
|
| DECAC | Delphinium californicum Torr. & Gray ssp. californicum | California larkspur | Ranunculaceae
|
| DECAI | Delphinium californicum Torr. & Gray ssp. interius (Eastw.) Ewan | California larkspur | Ranunculaceae
|
| DECAI2 | Delphinium californicum Torr. & Gray var. interius Eastw. | Delphinium californicum ssp. interius | Ranunculaceae
|
| DECA | Delphinium californicum Torr. & Gray | California larkspur | Ranunculaceae
|
| DECA11 | Delphinium caprorum Ewan | Delphinium glareosum | Ranunculaceae
|
| DECA2 | Delphinium cardinale Hook. | scarlet larkspur | Ranunculaceae
|
| DECAC2 | Delphinium carolinianum Walt. ssp. calciphilum Warnock | Carolina larkspur | Ranunculaceae
|
| DECAC3 | Delphinium carolinianum Walt. ssp. carolinianum | Carolina larkspur | Ranunculaceae
|
| DECAP | Delphinium carolinianum Walt. ssp. penardii (Huth) Warnock | Delphinium carolinianum ssp. virescens | Ranunculaceae
|
| DECAV | Delphinium carolinianum Walt. ssp. vimineum (D. Don) Warnock | Carolina larkspur | Ranunculaceae
|
| DECAV2 | Delphinium carolinianum Walt. ssp. virescens (Nutt.) Brooks | Carolina larkspur | Ranunculaceae
|
| DECAC4 | Delphinium carolinianum Walt. var. crispum Perry | Delphinium carolinianum ssp. carolinianum | Ranunculaceae
|
| DECAN | Delphinium carolinianum Walt. var. nortonianum (Mackenzie & Bush) Perry | Delphinium carolinianum ssp. carolinianum | Ranunculaceae
|
| DECA3 | Delphinium carolinianum Walt. | Carolina larkspur | Ranunculaceae
|
| DECH | Delphinium chamissonis Pritz. ex Walp. | Chamisso's larkspur | Ranunculaceae
|
| DECO7 | Delphinium cognatum Greene | Delphinium andersonii | Ranunculaceae
|
| DECO3 | Delphinium �confertiflorum Woot. (pro sp.) | | Ranunculaceae
|
| DECO6 | Delphinium consolida L. | Consolida regalis | Ranunculaceae
|
| DECU5 | Delphinium cucullatum A. Nels. | Delphinium occidentale | Ranunculaceae
|
| DECU4 | Delphinium cuyamacae Abrams | Delphinium hesperium ssp. cuyamacae | Ranunculaceae
|
| DECY | Delphinium cyanoreios Piper | Delphinium depauperatum | Ranunculaceae
|
| DEDED | Delphinium decorum Fisch. & C.A. Mey. ssp. decorum | coastal larkspur | Ranunculaceae
|
| DEDET | Delphinium decorum Fisch. & C.A. Mey. ssp. tracyi Ewan | coastal larkspur | Ranunculaceae
|
| DEDEP | Delphinium decorum Fisch. & C.A. Mey. var. patens (Benth.) Gray | Delphinium patens ssp. patens | Ranunculaceae
|
| DEDE | Delphinium decorum Fisch. & C.A. Mey. | coastal larkspur | Ranunculaceae
|
| DEDE2 | Delphinium depauperatum Nutt. | slim larkspur | Ranunculaceae
|
| DEDI11 | Delphinium distichum Geyer ex Hook. | twospike larkspur | Ranunculaceae
|
| DEDI3 | Delphinium �diversicolor Rydb. | | Ranunculaceae
|
| DEDIH | Delphinium diversifolium Greene ssp. harneyense Ewan | Delphinium depauperatum | Ranunculaceae
|
| DEDIH2 | Delphinium diversifolium Greene var. harneyense (Ewan) R.J. Davis | Delphinium depauperatum | Ranunculaceae
|
| DEDI8 | Delphinium diversifolium Greene | Delphinium depauperatum | Ranunculaceae
|
| DEELO | Delphinium elatum L. var. occidentale S. Wats. | Delphinium occidentale | Ranunculaceae
|
| DEEL2 | Delphinium elatum L. | candle larkspur | Ranunculaceae
|
| DEEXB | Delphinium exaltatum Ait. var. barbeyi Huth | Delphinium barbeyi | Ranunculaceae
|
| DEEX | Delphinium exaltatum Ait. | tall larkspur | Ranunculaceae
|
| DEGE | Delphinium geraniifolium Rydb. | Clark Valley larkspur | Ranunculaceae
|
| DEGEW | Delphinium geyeri Greene var. wootonii (Rydb.) K.C. Davis | Delphinium wootonii | Ranunculaceae
|
| DEGE2 | Delphinium geyeri Greene | Geyer's larkspur | Ranunculaceae
|
| DEGLC | Delphinium glareosum Greene ssp. caprorum (Ewan) Ewan | Delphinium glareosum | Ranunculaceae
|
| DEGLC2 | Delphinium glareosum Greene var. caprorum (Ewan) W.H. Baker | Delphinium glareosum | Ranunculaceae
|
| DEGL | Delphinium glareosum Greene | Olympic larkspur | Ranunculaceae
|
| DEGL2 | Delphinium glaucescens Rydb. | smooth larkspur | Ranunculaceae
|
| DEGL3 | Delphinium glaucum S. Wats. | Sierra larkspur | Ranunculaceae
|
| DEGR | Delphinium gracilentum Greene | pine forest larkspur | Ranunculaceae
|
| DEGR80 | Delphinium grandiflorum L. | Siberian larkspur | Ranunculaceae
|
| DEGR7 | Delphinium greenei Eastw. | Delphinium gracilentum | Ranunculaceae
|
| DEGYG | Delphinium gypsophilum Ewan ssp. gypsophilum | Pinoche Creek larkspur | Ranunculaceae
|
| DEGYP | Delphinium gypsophilum Ewan ssp. parviflorum Lewis & Epling | Pinoche Creek larkspur | Ranunculaceae
|
| DEGY | Delphinium gypsophilum Ewan | Pinoche Creek larkspur | Ranunculaceae
|
| DEHAA | Delphinium hansenii (Greene) Greene ssp. arcuatum (Greene) Ewan | Delphinium hansenii ssp. hansenii | Ranunculaceae
|
| DEHAE | Delphinium hansenii (Greene) Greene ssp. ewanianum Warnock | Ewan's larkspur | Ranunculaceae
|
| DEHAH | Delphinium hansenii (Greene) Greene ssp. hansenii | Eldorado larkspur | Ranunculaceae
|
| DEHAK | Delphinium hansenii (Greene) Greene ssp. kernense (A. Davids.) Ewan | Kern larkspur | Ranunculaceae
|
| DEHAK2 | Delphinium hansenii (Greene) Greene var. kernense A. Davids. | Delphinium hansenii ssp. kernense | Ranunculaceae
|
| DEHA | Delphinium hansenii (Greene) Greene | Eldorado larkspur | Ranunculaceae
|
| DEHEC | Delphinium hesperium Gray ssp. cuyamacae (Abrams) Lewis & Epling | foothill larkspur | Ranunculaceae
|
| DEHEH | Delphinium hesperium Gray ssp. hesperium | foothill larkspur | Ranunculaceae
|
| DEHEP | Delphinium hesperium Gray ssp. pallescens (Ewan) Lewis & Epling | foothill larkspur | Ranunculaceae
|
| DEHEH2 | Delphinium hesperium Gray var. hansenii Greene | Delphinium hansenii ssp. hansenii | Ranunculaceae
|
| DEHER | Delphinium hesperium Gray var. recurvatum (Greene) K.C. Davis | Delphinium recurvatum | Ranunculaceae
|
| DEHES2 | Delphinium hesperium Gray var. seditiosum Jepson | Delphinium parryi ssp. parryi | Ranunculaceae
|
| DEHE | Delphinium hesperium Gray | foothill larkspur | Ranunculaceae
|
| DEHU | Delphinium hutchinsoniae Ewan | Monterey larkspur | Ranunculaceae
|
| DEIN7 | Delphinium �inflexum A. Davids. (pro sp.) | | Ranunculaceae
|
| DEIN | Delphinium inopinum (Jepson) Lewis & Epling | unexpected larkspur | Ranunculaceae
|
| DEKI | Delphinium kinkiense Munz | Delphinium variegatum ssp. kinkiense | Ranunculaceae
|
| DELE | Delphinium leucophaeum Greene | Delphinium nuttallii ssp. ochroleucum | Ranunculaceae
|
| DELIK | Delphinium lineapetalum Ewan ssp. klickitatense Ewan | Delphinium lineapetalum | Ranunculaceae
|
| DELI3 | Delphinium lineapetalum Ewan | thinpetal larkspur | Ranunculaceae
|
| DELU3 | Delphinium luporum Greene | Delphinium polycladon | Ranunculaceae
|
| DELU | Delphinium luteum Heller | yellow larkspur | Ranunculaceae
|
| DEMA4 | Delphinium �macrophyllum Woot. (pro sp.) | | Ranunculaceae
|
| DEMA5 | Delphinium madrense S. Wats. | Sierra Madre larkspur | Ranunculaceae
|
| DEMEM | Delphinium menziesii DC. ssp. menziesii | Menzies' larkspur | Ranunculaceae
|
| DEMEP3 | Delphinium menziesii DC. ssp. pallidum Warnock | Menzies' larkspur | Ranunculaceae
|
| DEMEP2 | Delphinium menziesii DC. ssp. pyramidale Ewan | Delphinium menziesii ssp. menziesii | Ranunculaceae
|
| DEMEP | Delphinium menziesii DC. var. pyramidale (Ewan) C.L. Hitchc. | Delphinium menziesii ssp. menziesii | Ranunculaceae
|
| DEME | Delphinium menziesii DC. | Menzies' larkspur | Ranunculaceae
|
| DEMU | Delphinium multiplex (Ewan) C.L. Hitchc. | kittitas larkspur | Ranunculaceae
|
| DENEU | Delphinium nelsonii Greene ssp. utahense (S. Wats.) Ewan | Delphinium nuttallianum | Ranunculaceae
|
| DENE3 | Delphinium nelsonii Greene | Delphinium nuttallianum | Ranunculaceae
|