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Ribbed-Stem Pipewort
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Ribbed-Stem Pipewort
A Native Photo: Thingnam Sophia
Common name: Ribbed-Stem Pipewort • Kannada: Aaru moole kaanda, Betta gundu kaddi hullu
Botanical name: Eriocaulon sexangulare    Family: Eriocaulaceae (Pipewort family)
Synonyms: Eriocaulon nitidum, Eriocaulon sinicum, Eriocaulon wallichianum

Ribbed-Stem Pipewort is a slender clustered annual herb up to 11 cm tall. Leaves are linear, 10-35 cm, 4-13 mm wide at middle, veins 15-37. Flowering stems are 5-20 together, 20-60 cm tall, 4-6-ribbed; sheath 4-12 cm; receptacle hairless. Flower-heads are nearly spherical, about 6.5 mm in diameter, glaucous, base flat; involucral bracts straw-colored, obovate, 2.2-2.4 mm in diameter, rigid, below white; floral bracts obovate to obovate-wedge-shaped, 2-2.5 mm, below hairy toward tip. Ribbed-Stem Pipewort is found in ponds, rice fields, from near sea level to 800 m, from Madagascar, Tropical & Subtropical Asia to Caroline Islands. Flowering: August-March.

Identification credit: Tabish Photographed in Navi Mumbai, Maharashtra.

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