|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Cyperaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb, rhizomed [not], glabrous; roots fibrous. Stem: generally erect, 3-angled or cylindric, solid. Leaf: basal and cauline, 3-ranked; blades 4--11 per stem, linear, generally > sheaths, flat [V-shaped in ×-section], margins, generally midribs scabrous; sheaths not fibrous; ligule present or 0. Inflorescence: terminal or in axils of 1--3 distal leaves, spikelets 1 or few to many in panicle or head-like clusters; inflorescence bracts generally 3, leaf-like; spikelets < 5 mm diam; flower bracts 10--50, spiraled, 1--3.5 mm, sharp-pointed, each with 1 flower in axil. Flower: bisexual; perianth of (0)3--6 bristles, < or >> fruit, straight or strong-curled, smooth to barbed or toothed, generally persistent on fruit; stamens 1--3; style 2--3-branched, base persistent. Fruit: 0.5--1.8 mm, ovate, obovate, or elliptic, 2--3-sided, minute-papillate or -pitted.
Species In Genus: +- 35 species: North America, Mexico, Eurasia, Australia. Note: Other taxa in TJM (1993) moved to Amphiscirpus, Bolboschoenus, Isolepis, Schoenoplectus, Trichophorum.
eFlora Treatment Author: S. Galen Smith
Jepson Online Interchange
Key to ScirpusPrevious taxon: Schoenus nigricans
Next taxon: Scirpus congdonii
Citation for this treatment: S. Galen Smith 2017. Scirpus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=8921, accessed on January 18, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 18, 2017.