Species Crosses in Helianthus: III. Delimitation of "Sections"
Heiser, Charles Bixler 1920-2010
Article
1965
Annals of the Missouri Botanical Garden
52
364--370
BioStor
English
St. Louis, Missouri Botanical Garden Press, 1914-
BioStor: https://biostor.org/reference/11863 DOI: https://doi.org/10.2307/2394798