Muhlenbergia tenuiflora (Willdenow) Britton, Sterns, & Poggenburg. Slender Muhly. Phen: Aug-Oct. Hab: Moist forests and disturbed areas, up to at least 1400 meters, especially in base-rich soils. Dist: NH, WI, and NE south to GA, AL, MS, and OK.
Origin/Endemic status: Native
Taxonomy Comments: Two varieties are sometimes recognized: var. tenuiflora, with lemma awn 4-11 mm long and the sheaths and stems retrorsely hirsute, especially around the nodes, and var. variabilis (endemic to the Southern Appalachians), with lemma awn 1-4 mm long or absent, and the sheaths and stems glabrous or nearly so. The validity of the varieties needs further assessment.
Synonymy: = Ar, F, FNA25, G, HC, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, S, S13, Tat, Tn, Va, W, WV; > Muhlenbergia tenuiflora (Willd.) Britton, Sterns, & Poggenb. var. tenuiflora – C, Mo1; > Muhlenbergia tenuiflora (Willd.) Britton, Sterns, & Poggenb. var. variabilis (Scribn.) Pohl – C
Wetland Indicator Status:
Heliophily: 4
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