Fuirena simplex var. aristulata
Sida 7: 336. 1978.
IllustratedEndemic
Basionym: Fuirena squarrosa var. aristulata Torrey Ann. Lyceum Nat. Hist. New York 3: 291. 1836
Revision as of 21:35, 27 May 2020 by imported>Volume Importer
Herbs usually annual, rarely taller than 30–40 cm; rhizomes mostly absent, when present very short. Culms tufted (more slender than in preceding variety). Leaves: principal blades 5–12 cm. Spikelets to 12, lance-ovoid or lanceoloid; fertile scales 2–3 mm. Flowers: anthers 1–3, 0.5–0.6 mm.
Phenology: Fruiting summer–fall.
Habitat: Sand or clay, silt, of prairie swales, alluvial terraces, moist waste sites, pond and lakeshores
Elevation: 0–500 m
Distribution
Ark., Kans., La., Mo., Nebr., N.Mex., Okla., Tex.
Discussion
Most North American material of var. simplex is cespitose, the rhizomes short. In such specimens the evident perennial habit and the longer anthers are more reliable characteristics.
Selected References
None.
Lower Taxa
None.