Salix. Cortex Salicis . Goat Willow . Salix alba . Salix caprea . Salix matsudana . Salix viminalis . White Willow . Goat Willows . White Willows . Willow, Goat . Willow, White . Willows . Willows, Goat . Willows, White . Willow . A plant genus of the family Salicaceae. Members contain salicin, which yields SALICYLIC ACID. . 0.31