Verbatim text: Turner, B. L. 1987b. Taxonomic study of Machaeranthera, sections Machaeranthera and Hesperastrum (Asteraceae). Phytologia 62: 207–266.
Author: Turner, B.L.
Year: 1987b
Title: Taxonomic study of Machaeranthera, sections Machaeranthera and Hesperastrum (Asteraceae)
Journal: Phytologia
Volume: 62
Pages: 207–266
BHL link: http://www.biodiversitylibrary.org/part/16756