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Helianthus decapetalus Linnaeus. Forest Sunflower. Phen: Jul-Oct. Hab: Mesic woodlands and forests, oak savannas. Dist: ME and QC west to WI and IA, south to GA and MO.

Origin/Endemic status: Native

Synonymy: = C, FNA21, G, Il, K1, K3, K4, Mi, NE, NY, Oh3, Pa, RAB, S, SE1, Tat, Tn, Va, W; > Helianthus arenicola E.Watson; > Helianthus decapetalus L. – F, WV; > Helianthus leoninus E.Watson; > Helianthus saxicola Small – S; > Helianthus trachelifolius Mill. – F, WV

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: UPL
  • Eastern Mountains and Piedmont: FACU
  • Midwest: UPL
  • Northcentral & Northeast: FACU

Heliophily ?: 7

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷

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