Helianthus annuus var. ruberrimus Cockerell
This is a synonym of
Helianthus annuus L.
Helianthus annuus var. ruberrimus Cockerell appears in other Kew resources:
First published in Science, n.s., 40: 708 (1914)
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
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