Lipocarphe à petites fleurs

Scirpus micranthus Vahl, Enum. Pl. 2: 254. 1805; Hemicarpha micrantha (Vahl) Pax; H. micrantha var. minor (Schrader) Friedland; H. subsquarrosa (Muhlenberg) Nees; H. subsquarrosa var. minor (Schrader) Nees; Isolepis subsquarrosa (Muhlenberg) Schrader; I. subsquarrosa var. minor Schrader; Scirpus subsquarrosus Muhlenberg

Culms 2–20 cm × 0.3–0.5 mm. Leaves 1.5–10 cm × 0.3–0.5 mm. Inflorescences: spikes 1–2(–3), ovoid (to globose), 1–3(–5) × 1–2 mm, not bristly; bracts 1–2(–3), longest erect, others spreading, 2–5 cm × 0.3–0.6 mm. Spikelets: floral scales 2; 1st scale laterally yellowish to reddish brown, with green midvein, obtrullate to obovate, widest at or distal to mid length, 0.5–1 × 0.3–0.4 mm; 2d scale 2-fid, sometimes absent, 0.1–0.2 × 0.1 mm; 3d scale absent; stamen 1; anther 0.1–0.2 mm; stigmas 2. Achenes obovoid to broadly ellipsoid, 0.4–0.6(–0.7) × 0.2–0.3 mm, 1.5–2.5 times long as wide.

Fruiting late summer–early fall. Emergent shorelines, rarely freshwater tidal shores; 0–1500 m; B.C, Ont., Que.; Ala., Ariz., Calif., Conn., Fla., Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., Nebr., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., R.I., Tex., Va., Wash., Wis.; Mexico; West Indies; Central America; South America; Africa.