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Gleason & Cronquist treated this species as a variety of A. virginicus (var. abbreviatus)
Wet peaty or sandy soil.
West Indies and Central America, north to CA, AR, KY, VA, and along coastal plain to MA.
Perennial grass to 1.5 m; culms tufted; leaves usually 35 cm or more; stem-sheaths usually scabrous; inflorescence compact, obconic or corybiform, densely glomerately branched, the internodes greatly shortened; uppermost nodes mostly villous; fertile spikelets averaging 4.2 mm; sterile spikelet commonly present.
Flowers early July to late September
Wetland indicator: FACW
In southern NJ where these pictures were taken this species is most often found in moist savannas and in Atlantic white cedar swamps.
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
© Michael Hough 2018