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|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 [annual] 5--100(150) cm; rhizomes generally 0. Stem: generally 3-angled, <= 2 mm diam, glabrous, margin often minute-scabrous. Leaf: few to many, basal and cauline, spiraled; blade > sheath, 0.5--3 mm wide, proximally flat, midrib abaxially keeled or not, margin generally, midrib occasionally scabrous; sheath permanently tubular (not splitting), glabrous; ligule present or 0. Inflorescence: generally several, terminal and axillary, branched [head]; spikelets several to many, cylindric, 3.5--5.5 mm, on short stalks with spikelet bracts; flower bracts +- 5, spiraled [2-ranked], each with 1 flower in axil or proximal 1 or more smaller, with 0 flower, and intergrading with spikelet bracts, 1.7--3.5(4) mm, ovate, membranous, glabrous, generally mucronate or short-awned. Flower: bisexual or occasionally distal-most staminate; perianth bristles 2--12, to +- exceeding tubercle, barbed, persistent on fruit [not]; style 2-branched, base much enlarged, persistent on fruit as a prominent tubercle. Fruit: 2-sided [+- cylindric], body (except tubercle) obovate to pear-shaped, smooth or winkled [variously sculptured otherwise], brown.
Species In Genus: > 250 species: especially tropics. Etymology: (Greek: snout seed) Note: Kral's (2002) statement that Rhynchospora kunthii Kunth, Rhynchospora recognita (Gale) Kral (treated here as a synonym of Rhynchospora globularis) are both in California is evidently undocumented.
eFlora Treatment Author: S. Galen Smith
Jepson Online Interchange
Key to RhynchosporaPrevious taxon: Lipocarpha occidentalis
Next taxon: Rhynchospora alba
Citation for this treatment: S. Galen Smith 2016. Rhynchospora, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=8919, accessed on December 05, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 05, 2016.