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Helianthus ×verticillatus E.E. Watson (pro sp.) [angustifolius × grosseserratus]
Data Source
Last revised by:
John T. Kartesz, Biota of North America Program |
Curated and maintained by:
USDA NRCS National Plant Data Team
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Data Documentation
| Documentation |
State |
Type |
| Alabama Natural Heritage Program. |
AL |
Literature |
| Georgia Natural Heritage Program. |
GA |
Literature |
| Sharp, A.J., R.E. Shanks, J.K. Underwood, and E. McGilliard. 1960. A preliminary checklist of monocots in Tennessee. Published by authors, University of Tennessee, Knoxville. |
TN |
Literature |
| Tennessee Natural Heritage Program. 2002. Rare plant list (20 October 2002). Department of Environment and Conservation, Tennessee. |
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Literature |
| Thomas, R.D., and C.M. Allen. 1993. Atlas of the vascular flora of Louisiana, vols. 1-3. Louisiana Department of Wildlife and Fisheries. Natural Heritage Program, Baton Rouge. |
LA |
Literature |
| Thomas, R.D., and C.M. Allen. 1997. Atlas of the vascular flora of Louisiana, vols. 1-3 (Plus updates). Louisiana Department of Wildlife and Fisheries. Natural Heritage Program, Baton Rouge. |
LA |
Literature |
| U.S. Fish and Wildlife Service. 1988. National list of vascular plant species that occur in wetlands. U.S. Fish & Wildlife Service Biological Report 88 (26.9). |
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Literature |
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