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Helianthus debilis Nuttall ssp. tardiflorus Heiser. Common name: Gulf Coast Beach Sunflower. Phenology: Mar-Sep. Habitat: Sandy beaches, dry pinelands. Distribution: GA, FL, AL, and MS.

Origin/Endemic status: Endemic

Synonymy : = FNA21, K4, (basionym); = Helianthus debilis Nutt. ssp. cucumerifolius (Torr. & A.Gray) Heiser var. tardiflorus (Heiser) Cronquist — SE1; < Helianthus cucumerifolius Torr. & A.Gray — S; < Helianthus debilis Nutt. ssp. cucumerifolius (Torr. & A.Gray) Heiser — Fl7, WH3

Links to other floras: = Helianthus debilis ssp. tardiflorus - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Great Plains: FAC (taxonomic split from wetland indicator species)
  • Midwest: UPL (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: UPL (taxonomic split from wetland indicator species)

Heliophily : 9

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Horticultural Information

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