Taxon:
Helianthus laetiflorus Pers. var. subrhomboideus (Rydb.) Fernald
Summary
Place of publication:
Rhodora 48:79. 1946
Verified:
06/09/1989
ARS Systematic Botanists.
Autonyms (not in current use), synonyms and invalid designations
Reference(s)
- Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):136. Note: = H. rigidus subsp. subrhomboideus (Rydb.) Heiser et al.