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|Family: Cyperaceae||View Description||Dichotomous Key|
|Genus: Eleocharis||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Eleocharis quinqueflora (Hartmann) O. Schwarz
Habit: Perennial herb 5--30 cm, forming small mats, stem-tuft base generally swollen, often with bulbs, 2-veined scales present or not; rhizome 0.5--1 mm diam, weak, tip often with bulb 3--11 mm, 1--5 mm wide, ovate; caudex 0 or present. Stem: 0.2--0.8 mm diam, cylindric. Leaf: distal sheath firm, persistent, tip +- truncate to acute. Inflorescence: spikelet 4--8 mm, 1.5--4 mm wide, or 0; flower bracts 3--8, 2.5--6 mm, basal >= 1/2 spikelet, with flower or not. Flower: anthers 1--2.5 mm; stigmas 3. Fruit: 1.3--2.3 mm, 0.8--1.4 mm wide, 3-sided, smooth or fine-longitudinal-ridged, distally tapered, tip often beak-like; tubercle often merging with fruit; perianth bristles (0)3--6(7), vestigial to equaling tubercle.
Ecology: Uncommon, local. Wet meadows, fens, seeps, shores; Elevation: 40--3600 m. Bioregional Distribution: KR, NCoRI, CaR, SN, ScV, SCoRO, SnBr, SnJt, GB; Distribution Outside California: to Alaska, eastern Canada, Greenland, New Jersey; Eurasia. Flowering Time: Spring--summer Note: 2 additional taxa possibly to be named in California; study needed.
Synonyms: Scirpus quinqueflorus Hartmann; Eleocharis pauciflora (Lightf.) Link; Eleocharis pauciflora var. fernaldii Svenson; Eleocharis quinqueflora subsp. fernaldii (Svenson) Hultén; Scirpus pauciflorus Lightf.
Unabridged Note: The names Eleocharis quinqueflora and Eleocharis pauciflora, both from Europe, need typification. Some variants may deserve recognition as species or infraspecific taxa; in California these are: plants at lower elev, especially in ScV, with many large bulbs on rhizome tips (formed only where soil is drying) but no fruit and often no spikelets, which apparently intergrade (at elevations to 3000 m, to Oregon, Montana and AZ) with plants with smaller bulbs and with spikelets and often with fruit; plants at > 1700 m in SN, CaR (Mount Lassen) and San Bernardino Co., known only from California, which differ consistently in their hard caudices, spikelet with only 3--4 flowers, basal flower bract without a flower, and flower bracts only 2.5--4 mm, generally dark chestnut-colored. Bulbs probably eaten by native Americans in White Mountains, Inyo Co.
eFlora Treatment Author: S. Galen Smith
Jepson Online Interchange
Previous taxon: Eleocharis quadrangulata
Next taxon: Eleocharis radicans
Citation for this treatment: S. Galen Smith 2017. Eleocharis quinqueflora, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=24004, accessed on January 19, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 19, 2017.