Verbatim text: Babcock, E. B. and H. M. Hall. 1924. Hemizonia congesta: A genetic, ecologic, and taxonomic study of the hay-field tarweeds. Univ. Calif. Publ. Bot. 13: 15–100.
Author: Babcock, E.B., Hall, H.M.
Year: 1924
Title: Hemizonia congesta: A genetic, ecologic, and taxonomic study of the hay-field tarweeds
Journal: Univ. Calif. Publ. Bot
Volume: 13
Pages: 15–100