Species crosses in Helianthus [Compositae]. II. Polyploid species
Heiser, Charles Bixler 1920-2010 Smith, D M
Article
1964
Rhodora
66
344--358
BioStor
[Cambridge, Mass., etc.], New England Botanical Club [etc.],
BioStor: https://biostor.org/reference/138991
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http://creativecommons.org/licenses/by-nc-sa/3.0/
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