Fuirena simplex var. aristulata
Sida 7: 336. 1978.
Basionym: Fuirena squarrosa var. aristulata Torrey
Revision as of 16:08, 18 September 2019 by FNA>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.