Cyperus esculentus var. leptostachyus
Linnaea 36: 290. 1870.
Spikelets divaricate, forming 75–90° angle with rachis, (10–)15–20 × (1.2–)1.5–2 mm; floral scales ovate-lanceolate, widest at midlength, 1.8–2.7 × (1–)1.5–1.8(–2) mm. Flowers: anthers (1–)1.3(–1.6) mm; styles (0.7–)1–1.2 mm; stigmas (1.2–)1.8(–2.5) mm.
Phenology: Fruiting summer.
Habitat: Disturbed soils, croplands
Elevation: 0–1200 m
Distribution
B.C., N.B., Ont., Que., Ala., Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Mexico, Central America, South America, w Europe.
Discussion
Cyperus esculentus var. leptostachyus is the most common of the varieties nearly throughout the range of the species in North America.
Selected References
None.