Dichanthelium scabriusculum (Elliott) Gould & C.A. Clark. Tall Swamp Witchgrass. Phen: May-Oct. Hab: Moist, low, open or shaded woodlands, often along streams or ditches. Dist: Se. MA south to FL, west to e. TX and AR.

Origin/Endemic status: Native

Synonymy: = Va, LeBlond (2019a) in Weakley et al (2019a); < Dichanthelium scabriusculum (Elliott) Gould & C.A.Clark – FNA25, K1, K3, Gould & Clark (1978); > Panicum aculeatum Hitchc. & Chase – F, G, HC, S; < Panicum scabriusculum Elliott – C, GW1, RAB; > Panicum scabriusculum Elliott – F, HC, S; > Panicum scabriusculum Elliott var. scabriusculum – G

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Wetland Indicator Status:

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

Heliophily: 6