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|Family: Cyperaceae||View Description||Dichotomous Key|
|Genus: Amphiscirpus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Amphiscirpus nevadensis (S. Watson) Oteng-Yeb.
Habit: Perennial herb, 10--70 cm, smooth, tough, wiry; rhizomes long, 1--4 mm diam, tough, hard; stem, leaf air cavities 0. Stem: simple, 0.5--2 mm diam, +- cylindric, ridged. Leaf: basal, spiraled; sheath often disintegrating to fibers; ligule ciliate; blades 5--10, C-shaped in ×-section, distal > sheath, 0.5--2 mm wide, tip sharp, margin sparse-scabrous. Inflorescence: terminal, head-like, bracts leaf-like, main bract spreading or erect, 1--15 mm; spikelets 1--6(10), 5--20 mm, 3--5 mm wide, ovate to lanceolate, not +- flat, flowers many, 1 per flower bract; flower bracts spiraled, pale to dark red-brown, shiny, smooth, glabrous, papery to tough, hard, margins ciliate, basal 1--2 often like involucre, to 15 mm, with awn-like blade, others +- 4 mm, 3 mm wide, ovate, in proximal part of spikelet 3--9-veined, at least in distal-most 1-veined, tip not notched. Flower: bisexual; perianth of 1--6 barbed bristles; stamens 3, anthers +- 2 mm; style 1, thread-like, base not enlarged; stigmas 2. Fruit: 2-sided, 2--2.3 mm, 1.5--1.7 mm wide, obovate, brown, smooth, beak 0; tubercle 0.
Ecology: Saline, often alkaline seasonal wetlands; Elevation: 400--2400 m. Bioregional Distribution: CaR, GB, D; Distribution Outside California: southern South America. Flowering Time: Summer Note: Superficially like Schoenoplectus pungens.
Synonyms: Scirpus nevadensis S. Watson
eFlora Treatment Author: S. Galen Smith
Jepson Online Interchange
Previous taxon: Amphiscirpus
Next taxon: Bolboschoenus
Citation for this treatment: S. Galen Smith 2016. Amphiscirpus nevadensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13120, accessed on February 11, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 11, 2016.