Panicum philadelphicum Bernhardi ex Trinius ssp. lithophilum (Swallen) Freckmann & Lelong. Section: Panicum. Flatrock Panic Grass. Phen: Aug-Oct. Hab: Soil islands on granitic flatrocks and domes. Dist: Restricted to granite outcrops in NC, SC, and ec. GA.
Origin/Endemic status: Endemic
Taxonomy Comments: Zuloaga & Morrone (1996) did not consider ssp. lithophilum separable from ssp. philadelphicum.
Synonymy ⓘ: = FNA25, Tn; = Panicum lithophilum Swallen – HC, K1, K3, K4, RAB; < Panicum capillare L. var. sylvaticum Torr. – W; < Panicum philadelphicum Bernh. ex Trin. – Zuloaga & Morrone (1996)
Wetland Indicator Status:
- Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)
- Great Plains: FAC (taxonomic split from wetland indicator species)
- Midwest: FACW (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)
Heliophily ⓘ: 9
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