Publication: Sida 20(1): 167.
selected vouchers: WTU
Notes: Taxonomy follows FNA; Panicum ferventicola Schmoll (mentioned in Fl. of the PNW, Vol. 1) is a synonym of a taxon not in WA, called by FNA Dichanthelium acuminatum (Sw.) Gould & C.A. Clark ssp. sericeum (Schmoll) Freckman & Lelong. Reports of Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. acuminatum (Kz99 and 1978 Annals of the Missouri Botanical Garden) are referred to D. acuminatum ssp. fasciculatum. Reports of Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thermale (Bol.) Freckmann (Kz99 and Hitchcock & Chase 1971) are referred to D. acuminatum ssp. fasciculatum.
FNA25: "Dichanthelium acuminatum subsp. fasciculatum grows primarily in disturbed areas, open or cut-over woods, thickets, and grasslands, in dry to moist soils, including river banks, lake margins, and marshy areas. It is widespread in temperate North America, growing from Canada to Mexico, but it is somewhat less common in the western part of its range, where it often occurs on moister areas.
Dichanthelium acuminatum subsp. fasciculatum includes probably the most widespread, ubiquitous, and variable assemblages of forms in the species. It is not always clearly separable from the other subspecies of D. acuminatum, especially subsp. acuminatum, subsp. implicatum, and subsp. lindheimeri. Gene exchange with other Dichanthelium species (including D. dichotomum, D. laxiflorum, D. ovale, D. commutatum, and D. boreale) probably occurs not infrequently."