Anemone lancifolia is an herbaceous plant species in the genus Anemone and family Ranunculaceae. Plants grow 20 to 30 cm tall, growing from a horizontally orientated rhizome, flowering mid spring to early summer. The flowers have white sepals that are 12-20 mm long. This species much resembles Anemone quinquefolia except that it is larger growing. After flowering fruits called achenes are formed in a small cluster, each achene is 3.5-5 mm long, lacks wings and has a straight or partly curved beak that is 1-1.5 mm long.