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Dichanthelium acuminatum (Swartz) Gould & C.A. Clark var. fasciculatum (Torrey) Freckmann. Common name: Slender-stemmed Witchgrass. Phenology: May-Aug. Habitat: Open or cut-over woods, thickets, fields, meadows, and shores, frequently on disturbed soils. Distribution: NL (Newfoundland) south to FL, west to CA, north to s. BC.

ID notes: Typically much less pilose than var. acuminatum, the hairs usually papillate. Plants referable to Panicum glutinoscabrum Fernald may be a hybrid of var. fasciculatum with D. scoparium. Known only from se. VA, they are described as having culms 7-9 dm high; elongate internodes with cinereous puberulence and black, warty, viscid glands; villous nodes; glutinous-warty and scabrous sheaths and blades; ligule 4-5 mm long; minutely puberulent panicle axis; spikelets ellipsoid, subacute, 1.7-1.8 mm long, pubescent; first glume subacute, 0.6-0.7 mm long.

Origin/Endemic status: Native

Synonymy ⓘ: = Il, Va, Freckmann (1981); = Dichanthelium acuminatum (Sw.) Gould & C.A.Clark ssp. fasciculatum (Torr.) Freckmann & Lelong — FNA25; = Panicum fasciculatum Torr.; < Dichanthelium acuminatum (Sw.) Gould & C.A.Clark — Mex, Pa; < Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. acuminatum; >< Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. acuminatum — Gould & Clark (1978); >< Dichanthelium acuminatum (Sw.) Gould & C.A.Clark var. implicatum (Scribn.) Gould & Clark — Gould & Clark (1978); < Panicum acuminatum Sw. var. acuminatum — NcTx; > Panicum acuminatum Sw. var. fasciculatum (Torr.) Lelong — Lelong (1984); > Panicum acuminatum Sw. var. unciphyllum (Trin.) Lelong — Lelong (1984); >? Panicum glutinoscabratum Fernald; > Panicum huachucae Ashe — WV; > Panicum huachucae Ashe var. fasciculatum (Torr.) Hubb. — HC; > Panicum huachucae Ashe var. huachucae — HC, S; > Panicum huachucae Ashe var. silvicola Hitchc. & Chase — S; > Panicum implicatum Sw. — HC, NY, WV; < Panicum lanuginosum Elliott — RAB; > Panicum lanuginosum Elliott var. fasciculatum (Torr.) Fernald — C, F, G; > Panicum lanuginosum Elliott var. implicatum (Scribn.) Fernald — C, F, G; > Panicum lanuginosum Elliott var. tennesseense (Ashe) Gleason — C, G; > Panicum tennesseense Ashe — HC, S; Panicum dichotomum Linnaeus var. fasciculatum Torrey. Basionym: Panicum dichotomum L. var. fasciculatum Torr. 1824

Links to other floras: = Dichanthelium acuminatum ssp. fasciculatum - FNA25

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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 ⓘ: 7

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Nathan Aaron | Original Image ⭷
image of plant© Nathan Aaron | Original Image ⭷
image of plant© Nathan Aaron | Original Image ⭷
image of plant© Nathan Aaron | Original Image ⭷
image of plant© Nathan Aaron | Original Image ⭷

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Horticultural Information

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