Monographs Details: Delphinium
Authority: Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Description:Genus Description - Fls irregular; cal corolloid, with unequal sep, the upper one prolonged backward into a spur usually equaling or surpassing the blade; pet mostly 4, the two upper very inequilateral, each with a long spur extending into the spurred sep, the two lower clawed, abruptly deflexed at the middle, often bifid; pet united into 1 in our introduced spp., with 1 spur; stamens numerous; pistils 1–5, the fr follicular; annual or perennial poisonous herbs with basal or cauline, palmately cleft lvs and a terminal, simple or branched raceme of blue to pink or white fls. (Consolida) 200, widespread.