Hybrid Perennial Sunflowers
Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948
Article
1919
Botanical gazette
67
Issue: 3
264--266
BioStor
English
Hanover, Ind, [publisher not identified], 1876-1991
BioStor: https://biostor.org/reference/209659 DOI: https://doi.org/10.1086/332445