Taxon:
Helianthus praecox Engelm. & A. Gray subsp. praecox
Summary
Verified:
03/08/2010
ARS Systematic Botanists.
Autonyms (not in current use), synonyms and invalid designations
Reference(s)
- FNA Editorial Committee. 1993-. Flora of North America. URL: http://floranorthamerica.org/
- Heiser, C. B., Jr. et al. 1969. The North American sunflowers (Helianthus). Mem. Torrey Bot. Club 22(3):52.
- Rieseberg, L. H. 1991. Homoploid reticulate evolution in Helianthus (Asteraceae): evidence from ribosomal genes. Amer. J. Bot. 78:1218-1237. URL: http://www.amjbot.org
- Rogers, C. E. et al. 1982. Sunflower species of the United States. 14.
- Yushkina, L. L. et al. 2009. Cytogenetic analysis of interspecific hybrid Helianthus praecox × H. annuus, its parental forms, and two backcrosses. Cytol. & Genet. 43:33-37. Note: Translation of: Tsitologiya i genetika. Kiev
Common names
English
premature sunflower – Texas sunflower –
Distribution
order_code | Status | Continent | Subcontinent | Country | State | Note |
1 | Native | Northern America | South-Central U.S.A. | United States | Texas | s.e. |
Native
Northern America
-
SOUTH-CENTRAL U.S.A.:
United States [Texas (s.e.)]