Trillium undulatum Willd., forma Cleavelandicum (Wood), comb. nov. T. erythrocarpum, var. Cleavelandicum Wood, Cl.-bk. ed. 2: 546 (1848). T. Cleavelandicum Swallow ex Wood, l. c., as synonym
Published in Rhodora, in 1943, in volume 45, issue 540, pages 517-518
Date published:1943