Malaxis bayardii Fernald. Common name: Appalachian Adder's-mouth. Phenology: Jul-Sep. Habitat: Dry, open, upland forests, shale barrens. Distribution: S. NY and se. MA south through CT, RI, NJ, PA, and VA to w. and c. NC, mostly in the mountains (but somewhat disjunct on the Coastal Plain of VA).

Origin/Endemic status: Native

Taxonomy Comments: See Catling (1991) for further discussion of the distinction of M bayardii from M. unifolia.

Synonymy ⓘ: = Can, F, FNA26, K4, NE, NS, NY, Pa, POWO, Va, Catling (1991); < Malaxis unifolia Michx. — C, G, GW1, RAB, S, S13, W, WV, Correll (1950), Luer (1975). Basionym: Malaxis bayardii Fernald 1936

Links to other floras: = Malaxis bayardii - FNA26

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Wetland Indicator Status:

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

Heliophily ⓘ: 2