Heliocarpus occidentalis Rose Heliocarpus occidentalis Rose in Contr. U.S. Natl. Herb. 5 (3): 127–128, t. 8. 1897 sec. Gual 2008=Heliocarpus laevis Rose in Contr. U. S. Natl. Herb. 8: 317. 1905 syn. sec. The Plant List 2013