By Science Staff
Not peer reviewed
Last Modified 11/26/2012
Nomenclature
Heliopsis Persoon, Syn. Pl. 2: 473. 1807.List of Heliopsis Species
References to Heliopsis
- Fisher, T. R. 1957 . Taxonomy of the genus Heliopsis (Compositae). Ohio J. Science 57: 171-191.