Verbatim text: Bierner, M. W. 2005. Taxonomy of Hymenoxys subgenus Rydbergia (Asteraceae, Helenieae, Tetraneurinae). Lundellia 8: 28–37.
Author: Bierner, M.W.
Year: 2005
Title: Taxonomy of Hymenoxys subgenus Rydbergia (Asteraceae, Helenieae, Tetraneurinae)
Journal: Lundellia
Volume: 8
Pages: 28–37