Checklist » Cyperaceae » Eleocharis parvula
Last updated 8/28/2009 by David Giblin.
Eleocharis parvula (Roem. & Schultes) Link ex Bluff Nees, & Schauer[FNA23, HC, HC2]
little-head spikerush

Publication: Comp. Fl. German. ed. 2. 1: 93. 1836.

Origin: Native

selected vouchers: WTU

Notes: FNA23: "Plants without well-developed bristles are otherwise typical Eleocharis parvula. S.-O. Strandhede and R. M. T. Dahlgren (1968) provided a detailed description from Scandinavia; the mostly curved tubers of North American plants are differently shaped than the ovoid, mostly nearly straight tubers illustrated by them. Eleocharis parvula is very uncommon inland. Plants lacking spikelets and having rather broad culms with evident aerenchyma (E. parvula forma spongiosa Fassett) that are submerged in tidal zones closely resemble small plants of Sagittaria graminea. Eleocharis parvula has also been reported from North Dakota, South America, and Africa; I have not seen specimens. Plants without achenes or tubers cannot be reliably identified to species. Literature reports from Cuba, Mexico, and Venezuela may be based on specimens of E. coloradoensis. "

References: (none)

Synonyms & Misapplied Names:
Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer var. parvula[HC]
Eleocharis pygmaea Torr.
Scirpus nanus Spreng.
Scirpus parvulus Roem. & Schult.