Bulbostylis capillaris (L.) C.B.Clarke
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Tufted annual to 3 dm; scapes capillary; lvs short, slender, to 0.5 mm wide, involute, smooth or with scabrous margins; spikelets lance-ovoid or ovate, acute, 3–5 mm, few-fld, 2–7 in open, umbelliform cymes; scales ovate, curved-keeled, with a prominent, often shortly excurrent midrib; anthers 2, 0.5 mm; achene obovoid-trigonous, 1 mm, stramineous, finely cross-rugulose; tubercle minute, depressed-globose. Dry, open, often rocky or sandy places; Me. to Minn., s. to Fla., Tex., Ariz., C. Amer., and W.I.