In all anemones, involucre, a flower wrapping consisting of leaf-like bracts, is remote from the flower, separated from it by a tall peduncle. In this species, in addition to the involucre embracing all peduncles, there are smaller involucels up on each of the peduncles. Fruiting heads composed of separate beaked achenes are oblong, up to 1.4 cm thick, prickly with diverging styles (beaks).