A. Napellus: stem erect, 1 1/2-2 feet high; leaves deeply 5-7-clcft, with linear pointed segments, stalked, or the upper ones nearly sessile, dark green; flowers, dense, racemose, large, dark blue, on erect stalks; spur of the small upper petals short, conical, and more or less bent downwards; carpels three. - Wolf's-bane. - Moist pastures. Fl. June, July.