.
| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Ranunculaceae | Delphinium carolinianum ssp. calciphilum | Glade Larkspur, Limestone Larkspur, Tennessee Larkspur | Limestone glades and barrens. | KY south through e. and c. TN to ne. AL and nw. GA. | 
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| Ranunculaceae | Delphinium carolinianum ssp. carolinianum | Ozark Larkspur, Prairie Larkspur, Carolina Larkspur, Blue Larkspur | Rocky woodlands, granite outcrops, Altamaha Grit outcrops, blackland prairies, calcareous glades, moist sandy woodlands associated with longleaf pine. | IL west to e. KS, south to LA and TX, with disjunct occurrences eastward in SC, GA, AL, Panhandle FL (Gadsden County), and MS; questionably reported for c. TN. The flowers are a pale to medium blue. This species has been reported for NC (by C) and ‘north to Va.’ (by F and S). I know of no documentation for its past or present occurrence in NC or VA, but its presence in those states is plausible. | 
|
| Ranunculaceae | Delphinium carolinianum ssp. vimineum | Pineywoods Larkspur, Texas Larkspur | Grasslands, coastal prairies, longleaf pine sandhills. | Sw. AR south to MS , e. and w. LA, s. TX, and Mexico (CHH, COA, and TAM). | 
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| Ranunculaceae | Delphinium carolinianum ssp. virescens | Plains Larkspur, Prairie Larkspur | Prairies, glades, ledges. | MB, MN, WI, w. IL, e. MO, sw. AR and e. TX, westwards to ND, SD, NE, CO, and AZ. | |