Websteria confervoides

(Poiret) S. S. Hooper

Kew Bull. 26: 582. 1972.

Basionym: Scirpus confervoides Poiret in J. Lamarck et al., Encycl. 6: 755. 1805
Synonyms: Rhynchospora ruppioides Bentham Scirpus submersus C. Wright Websteria limnophila S. H. Wright Websteria submersa (C. Wright) Britton
Treatment appears in FNA Volume 23. Treatment on page 121. Mentioned on page 91.

Culms: primary ones pale green, 175 cm × 0.6 mm; stems green, 10 cm × 0.05 mm. Leaves: sheaths pale brown or red-brown, 7–10 mm. Spikelets: scales pale brown to green with red or purple marks, midvein colorless or green, lanceolate, 5–12 × 0.5–1.6 mm, margins scarious. Achenes pale brown to red-brown, ellipsoid, 2 × 1.2–1.5 mm; beak 1.4–2 × 0.2–0.3 mm.

Phenology: Fruiting fall.
Habitat: Lakes
Elevation: 0–50 m


V23 185-distribution-map.jpg

Fla., Ga., West Indies, Central America, South America, Asia (India, Malesia, Sri Lanka), Africa (including Madagascar), n Australia.


Sterile aquatic specimens of several species of Eleocharis have been confused with Websteria confervoides. Sterile specimens of W. confervoides can be recognized, with some confidence, by their pale, relatively stout main stems with numerous, very slender green branches, the somewhat enlarged nodes, long (to 11 mm) bracts subtending branches, and the usually reddish abscission zone of the bracts. Correctly identified specimens have been seen only from Florida and Georgia.

Selected References


Lower Taxa

... more about "Websteria confervoides"
Jeremy J. Bruhl +
(Poiret) S. S. Hooper +
Scirpus confervoides +
Fla. +, Ga. +, West Indies +, Central America +, South America +, Asia (India +, Malesia +, Sri Lanka) +, Africa (including Madagascar) +  and n Australia. +
0–50 m +
Lakes +
Fruiting fall. +
Illustrated +
Rhynchospora ruppioides +, Scirpus submersus +, Websteria limnophila +  and Websteria submersa +
Websteria confervoides +
Websteria +
species +