Eleocharis radicans

(A. Dietrich) Kunth

Enum. Pl. 2: 142. 1837.

Basionym: Eleogiton radicans A. Dietrich Sp. Pl. 2: 97. 1833
Synonyms: Eleocharis acicularis var. radicans (A. Dietrich) Britton Eleocharis lindheimeri Svenson
Treatment appears in FNA Volume 23. Treatment on page 112. Mentioned on page 108.
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Plants perennial, mat-forming; rhizomes 0.2–0.5 mm thick, longer internodes 5–10 mm, scales not evident. Culms obscurely to ca. 10-ribbed when dry, terete, 1–12 cm × 0.4–1 mm, very soft, spongy. Leaves: distal leaf sheaths fugaceous, colorless, translucent, apex blunt. Spikelets ovoid, 2–3 × 1–1.5 mm, apex acute; scales 5–15, 5–7 per mm of rachilla, colorless to stramineous, rarely slightly reddish, medially broadly greenish to colorless, faintly 3–5-veined, often ovate, membranous, fleshy; proximal scale 2–2.5 × 0.7 mm, other scales 1.5–2 × 0.7 mm, midrib obscure to slightly keeled, apex acute to rounded. Flowers: perianth bristles equaling achene; anthers yellow to brown, 0.3–0.5 mm. Achenes brownish, angles plus longitudinal ridges ca. 7, narrowly obovoid, 2 times longer than wide, 0.75–0.9 × 0.35–0.4 mm, trabeculae ca. 50, distinct. Tubercles brown, pyramidal, 0.15 × 0.15–0.2 mm.

Phenology: Fruiting spring–winter (Apr–Dec).
Habitat: Stream alluvium, lake margins, meadows, seeps, bogs
Elevation: 100–1400 Ariz., Calif., Fla., La., Mich., Okla., Tex., Va.


V23 170-distribution-map.jpg

n Mexico, West Indies, Central America (El Salvador), South America (Argentina, Chile), Pacific Islands (Hawaii).


Selected References


Lower Taxa

... more about "Eleocharis radicans"
S. Galen Smith* +, Jeremy J. Bruhl* +, M. Socorro González-Elizondo* +  and Francis J. Menapace* +
(Poiret) Kunth +
Scirpus radicans +
n Mexico +, West Indies +, Central America (El Salvador) +, South America (Argentina +, Chile) +  and Pacific Islands (Hawaii). +
100–1400 Ariz., Calif., Fla., La., Mich., Okla., Tex., Va. +
Stream alluvium, lake margins, meadows, seeps, bogs +
Fruiting spring–winter (Apr–Dec). +
Illustrated +
Eleocharis acicularis var. radicans +  and Eleocharis lindheimeri +
Eleocharis radicans +
Eleocharis subg. Scirpidium +
species +