Aristida dichotoma Michx.
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 2–4 dm, erect or ascending, branched from the base; lvs filiform, mostly involute, or the lower flat; terminal panicle 3–8 cm, very slender, often reduced to a raceme; lateral infls much shorter, mostly enclosed in the subtending sheaths; glumes subequal, mucronate, 1-veined, 5.2–10.5 mm; lemma 4.4–9 mm; central awn 3–10 mm, its base nearly horizontally divergent and loosely coiled, usually in a half to one full turn; lateral awns straight, erect, 0.7–3.3 mm. Dry sandy or sterile soil; Me. to Mich., Io., and Kans., s. to Fla. and Tex.