Verbatim text: Al-Shehbaz, I. A. 1973. The biosystematics of the genus Thelypodium (Cruciferae). Contr. Gray Herb. 204: 3–148.
Author: Al-Shehbaz, I.A.
Year: 1973
Title: The biosystematics of the genus Thelypodium (Cruciferae)
Journal: Contr. Gray Herb
Volume: 204
Pages: 3–148