Panicum virgatum Linnaeus var. virgatum . Section: Hiantes. Switchgrass. Phen: Jun-Oct. Hab: Dry or wet sandy soils of pinelands, fresh and brackish marshes, tidal swamps, interdune swales and ponds, riverside scour prairies, mafic fens, calcareous fens and spring marshes, rocky river shores and bars, and also frequently planted. Dist: Sw. QC and ND south to FL and TX, west to NV and n. Mexico; Bermuda; Central America.

Origin/Endemic status: Native

Synonymy: = F, HC, S, Tat, Va, Sorrie (2018b) in Weakley et al (2018a); < Panicum virgatum L. – Ar, C, ETx1, FlGr, FNA25, G, GW1, Il, Mi, NcTx, NY, Pa, RAB, Tn, Tx, W, WH3, WV, Lelong (1986), Zuloaga & Aliscioni (2023); < Panicum virgatum L. var. virgatum – K1, K3, K4

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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: 9