Delphinium carolinianum subsp. vimineum
Syst. Bot. 6: 49. 1981.
Roots usually with elongate single central axis, axis ± vertical, terminal branches (if present) sometimes approaching horizontal. Stems 20-60 (-100) cm. Leaves usually basal and cauline at anthesis; distalmost petioles more than 5 mm. Leaf-blade distinctly 3-parted; ultimate lobes of midcauline leaf-blades 3-9, width 3-10 mm. Flowers: sepals various shades of blue to white. 2n = 16, 32.
Phenology: Flowering late winter–early summer.
Habitat: Sandy or clay soils, coastal prairies, pine woods, Prosopis or Quercus scrub
Elevation: 0-300 m
Ark., La., Okla., Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (and Tamaulipas)
Delphinium carolinianum subsp. vimineum hybridizes with D. madrense especially on southern edge of Edwards Plateau in Texas.