Taxon:
Helianthus debilis Nutt. subsp. praecox (Engelm. & A. Gray) Heiser
Summary
Place of publication:
Madroño 13:160. 1956
Verified:
06/23/1999
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):52.