pulsatila . ( Of pulsatilla , scientific name of this plant, formed from the lat. )(do puls? re , press). 1. f. perennial plant of the family of the Buttercup, Woody root, radical and petiolate, leaves cut into three segments, divided into alesnadas lacinias, common family and hairy, 15 to 20 cm tall, which holds a solitary flower, erect first and then stooped to land without corolla, with slightly calyx bright violet; involucre toothed, funnel, and baby dry, indehiscent and monospermos, fitted with long tail pelosa shaped.