Coastal Plain Spike-Rush
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Coastal Plain Spike-Rush
A Native Photo: Thingnam Rajshree
Common name: Coastal Plain Spike-Rush
Botanical name: Eleocharis retroflexa    Family: Cyperaceae (Sedge family)
Synonyms: Scirpus retroflexus, Baeothryon retroflexum

Coastal Plain Spike-Rush is an annual grasslike herb with stems often recurved, clustered, 2-16 cm tall or rarely more, thread-like, soft, 5- or nearly 4-angled. Leaf sheaths are 1 or 2, pale red, tubular, 2-12 mm; basalmost sheath bladeless; stem sheaths usually with a glumelike blade at tip. Spikelets are purplish red, ovoid, about 4 x 2 mm, slightly compressed, few flowered, sometimes proliferous. Basalmost glume empty, subelliptic, stem-clasping for whole spikelet base; fertile glumes green, broadly ovate, 2.8-3 x 1.8-2 mm, herbaceous, with a median keel, edge membranous, margin hyaline, tip pointed to blunt. Perianth bristles 6, nearly as long as nutlet, one on outer series shorter than nutlet, retrorsely spinulose. Stigmas 3. Nutlet yellowish, broadly obovoid, about 1.5 × 1 mm, 3-sided. Coastal Plain Spike-Rush is is found in moist areas in fields, in Tropics & Subtropics, including East Himalaya. Flowering: July-November.

Identification credit: Thingnam Rajshree Photographed in Satajaan Bird Sanctuary, Assam.

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