- Delphinium alabamicum: Alabama larkspur
- Delphinium alpestre: Colorado larkspur
- Delphinium altissimum
- Delphinium andersonii: Anderson's larkspur
- Delphinium andesicola: Chiricahua Mountain larkspur
- Delphinium antoninum: Tracy's larkspur
- Delphinium arthriscifolium
- Delphinium bakeri: Baker's delphinium
- Delphinium barbeyi: subalpine larkspur
- Delphinium basalticum: basalt larkspur
- Delphinium bicolor: little larkspur
- Delphinium brachycentrum: northern larkspur
- Delphinium brownii
- Delphinium brunonianum
- Delphinium bulleyanum
- Delphinium caeruleum
- Delphinium californicum: California larkspur
- Delphinium calthifolium: from Sichuan, China
- Delphinium cardinale: scarlet larkspur
- Delphinium carolinianum: Carolina larkspur
- Delphinium caseyi: Casey's larkspur
- Delphinium cashmerianum
- Delphinium chamissonis: Chamisso's larkspur
- Delphinium cheilanthum
- Delphinium consolida
- Delphinium corymbosum
- Delphinium decorum: coastal larkspur
- Delphinium delavayi
- Delphinium denudatum
- Delphinium depauperatum: slim larkspur
- Delphinium dictyocarpum
- Delphinium distichum: twospike larkspur
- Delphinium duhmbergii
- Delphinium elatum: candle larkspur
- Delphinium exaltatum : tall larkspur
- Delphinium fissum
- Delphinium formosum: showy larkspur
- Delphinium geraniifolium: Clark Valley larkspur
- Delphinium geyeri: plains larkspur
- Delphinium glareosum: Olympic larkspur
| | |  D. elatum,
candle larkspur  D. cardinale, scarlet larkspur |
