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Websteria confervoides

Websteria confervoides (Poir.) S. Hooper  
Family: Cyperaceae
[Rhynchospora ruppioides Benth., moreScirpus submersus Sauvalle]
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  • FNA
  • Resources
Jeremy J. Bruhl in Flora of North America (vol. 23)
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.

Fruiting fall. Lakes; 0-50 m; 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.

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University of Florida Herbarium
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