References
Anderson, L.C. 1970. Studies in Bigelowia (Astereae, Compositae) 1. Morphology and taxonomy. Sida 3: 451-465. Google Scholar
Anderson, L.C. 1970. Studies in Bigelowia (Astereae, Compositae) 1. Morphology and taxonomy. Sida 3: 451-465. Google Scholar