Verbatim text: Payson, E. B. 1923. A monographic study of Thelypodium and its immediate allies. Ann. Missouri Bot. Gard. 9: 233–324.
Author: Payson, E.B.
Year: 1923
Title: A monographic study of Thelypodium and its immediate allies
Journal: Ann. Missouri Bot. Gard
Volume: 9
Pages: 233–324
BHL link: http://www.biodiversitylibrary.org/part/9931