Parnassia grandifolia A.P. de Candolle. Limeseep Parnassia, Bigleaf Grass-of-Parnassus. Phen: Aug-Nov (-Dec). Hab: Fens, gravelly seepages, pineland seepage bogs and ecotones, primarily or solely over calcareous, mafic, or ultramafic rocks, in the outer Coastal Plain in seepage over marl on nearly vertical river bluffs on the Cape Fear River (NC) and in pineland seepage bogs. Dist: VA, WV, s. MO, and OK south to n. GA, Panhandle FL, s. MS (Sorrie & Leonard 1999), AR, and e. TX, primarily in the Appalachian and Ozarkian highlands.

Origin/Endemic status: Endemic

Other Comments: The discovery of populations of this species in Brunswick and Columbus counties, NC, was remarkable. In the Panhandle of FL and the West Gulf Coastal Plain of LA and TX it also occurs in wet savannas and pitcherplant bogs (MacRoberts, MacRoberts, & Jackson 2004), in FL sometimes in close proximity to P. caroliniana; Parnassia in Coastal Plain savannas should not necessarily be assumed to be P. caroliniana.

Synonymy: = Ar, C, F, FNA12, G, GW2, K1, K3, K4, RAB, S, Tn, Tx, Va, W, WH3, WV, Alexander (1934b)

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