Bulbostylis ciliatifolia (Elliott) Fernald

Tufted, to 4 dm; lvs up to half as long as the culms, slender, to 0.5 mm wide, often involute; spikelets lance-ovoid, 2–6 mm, few-fld, in umbelliform cymes; scales ovate or broadly ovate, curved-keeled; anthers 2 or 3, 1 mm; achene obovoid-trigonous, 1 mm, grayish or grayish-blue, finely papillate; tubercle minute, depressed-globose; 2n=60. Sandy places; se. Va. to Fla. and Tex. and n. to Tenn.; Cuba. Two ecologically differentiated vars. of nearly coextensive range. Var. ciliatifolia, of less extreme habitats, often weedy, is annual, with few spikelets in a simple or subsimple infl that is seldom surpassed by the longest bracts; the veins and edges of the lvs are usually hispidulous, and the midrib of the scale is only slightly or not at all excurrent. Var. coarctata (Elliott) Kral, usually in ant-hills with longlf pine, is ± perennial, with more numerous spikelets in a more compound infl that is commonly surpassed by the longest bract; the lvs are mostly smooth except for the scabrous-tuberculate to hispidulous edges, and the midrib of the scale is usually shortly mucronate-excurrent. (B. coarctata)