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Ambrosia porcheri P.D. McMillan & L. Prevost. Outcrop Ragweed. Phen: Aug-late Oct. Hab: In shallow soil mats on granitic domes. Dist: Apparently endemic to the Piedmont Blue Ridge escarpment region of nw. SC.

Origin/Endemic status: Endemic

Taxonomy Comments: See McMillan & Prevost (2022) for detailed information.

Synonymy ⓘ: = McMillan & Prevost (2022), in prep.; < Ambrosia artemisiifolia L. – FNA21, K3, K4, RAB, SE1

Links to other floras: < Ambrosia artemisiifolia - FNA21

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Wetland Indicator Status:

  • Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
  • Great Plains: FACU (taxonomic split from wetland indicator species)
  • Midwest: FACU (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)

Heliophily ⓘ: 9

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image of plant© Scott Ward | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷

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