Dichanthelium portoricense (Desvaux ex Hamilton) B.F. Hansen & Wunderlin ssp. patulum (Lamson-Scribner & Merrill) Freckmann & Lelong. Common name: Nash's Witchgrass. Phenology: May-Sep. Habitat: Moist pine savannas and flatwoods, moist to dry openings in maritime forests, dry pine and oak sandhills. Distribution: Se. VA to FL, west to e. TX; West Indies and Central America.

Origin/Endemic status: Native

Other Comments: This and D. portoricense ssp. portoricense appear to intergrade in our region.

Synonymy ⓘ: = Va; Panicum nashianum Scribn. var. patulum Scribn. & Merr. = Panicum lancearium Trin. — C, G, RAB; > Dichanthelium patulum (Scribn. & Merr.) Wipff — Wipff (2020); < Dichanthelium portoricense (Desv. ex Ham.) B.F.Hansen & Wunderlin — K4; < Dichanthelium portoricense (Desv. ex Ham.) B.F.Hansen & Wunderlin ssp. patulum (Scribn. & Merr.) Freckmann & Lelong — FNA25; < Dichanthelium sabulorum (Lam.) Gould & Clark var. patulum (Scribn. & Merr.) Gould & Clark — Gould & Clark (1978); > Panicum lancearium Trin. — HC, S, SFla; > Panicum lancearium Trin. var. lancearium — F; > Panicum lancearium Trin. var. patulum (Scribn. & Merr.) Fernald — F; > Panicum nashianum Scribn.; > Panicum patentifolium Nash — S, SFla; > Panicum patulum (Scribn. & Merr.) Hitchc. — HC, S; < Panicum portoricense Desv. ex Ham. var. nashianum (Scribn.) Lelong — Lelong (1984). Basionym: Panicum nashianum Scribn. var. patulum Scribn. & Merr. 1900

Links to other floras: < Dichanthelium portoricense ssp. patulum - FNA25

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Wetland Indicator Status:

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

Heliophily ⓘ: 8