Seeds Tacca leontopetaloides Polynesian Arrowroot or Beach Batlily. A exotic tropical perennial plant has white flowers with 12 inch long whiskers and grows 2 to 4 feet tall in full or part shade. A herbaceous, arid like plant dying back to a large, rounded subterranean tuber, the large spreading leaf is divided onto three main branches, each bearing a number of broad, ovate to rounded lobes. The leaves may be up to 9 inches across and are on a fleshy stalk to 24 inches tall. Small, rounded, greenish purple flowers are clustered at the end of a fleshy. This cluster is surrounded by large, greenish bracts. Long, thread like filaments hang from between the flowers. The fruit are yellow and fleshy. USDA Hardiness Zones 8 to 11.