Compositae source details
(1915). Amer. Naturalist 49
308347
1915
Publication
Date
action
by
Helianthus annuus var. chrysanthemoides Cockerell (original description)
Helianthus annuus var. macrocarpus (DC.) Cockerell accepted as Helianthus annuus L. (original description)
Ratibida columnifera var. breviradiata Cockerell (original description)
Ratibida columnifera var. incisa Cockerell (original description)
Ratibida columnifera var. tubularis Cockerell (original description)
Helianthus annuus var. macrocarpus (DC.) Cockerell accepted as Helianthus annuus L. (original description)
Ratibida columnifera var. breviradiata Cockerell (original description)
Ratibida columnifera var. incisa Cockerell (original description)
Ratibida columnifera var. tubularis Cockerell (original description)
