Zomlefer, W.B., W.M. Whitten, N.H. Williams, and W.S. Judd. 2006. Infrageneric phylogeny of Schoenocaulon (Liliales: Melanthiaceae) with clarification of cryptic species based on ITS sequence data and geographical distribution. Amer. J. Botany 93: 1178-1192.
Cite as...