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Annuals, 5-10 cm tall; culms tufted, compressed, trigonous, glabrous. Leaves basal, 3-10 x 0.1 cm, linear, flat, margins involute; sheaths 5-12 mm long, laterally compressed, straw-coloured, lower ones bladeless, mouth oblique, membranous with dark brown spots; ligule absent. Inflorescence terminal, capitate, 1-2 cm across; bracts 2-3, the largest to 4 cm long. Spikelets 5-8 x 1-1.5 mm, oblong-cylindric, obtuse, brown; rachilla narrowly winged. Glumes spiral, 1-1.5 mm long, ovate, concave, acute at apex, keeled, 3-nerved, yellowish, margins hyaline. Stamen 1; anthers c. 0.5 mm, oblong. Style c. 1 mm long, linear, thickened at base, sparsely ciliate at top; stigma 2. Nut c. 0.5 mm, obovoid, obscurely vertically striate, biconvex, yellowish.

Flowering and fruiting: November-December
Wet or moist sandy grounds, grasslands and in rice fields
South and South East Asia
(Attribution- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi from India Biodiversity Portal)
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ID KANNUR 18 : 4 posts by 3 authors. Attachments (1)
Please identify this Cyperaceae member from the riparian zone of Kannur district of Kerala,


Please post more photograph of the same.


It looks like Fimbristylis argentea (Rottb.) Vahl


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Cyprus sp for id: 4 images- 3 high res.
Collected from Wetland, Gujarat
Oct-2021


Please help to confirm Fimbristylis argentea


To me (as a layman) appears close to as per images at
http://www.eflorakkl.in/Details.php?id=121
http://keralaplants.in/keralaplantsdetails.aspx?id=Fimbristylis_argentea
https://indiabiodiversity.org/observation/show/339321?lang=en


Looks like Fimbristylis argentea. But specimens needed to be checked for variation, if any.


 


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References: The Plant List Ver.1.1  WCSP  IPNI  Catalogue of Life  eMonocot  GBIF India Biodiversity Portal  IUCN Red List (LC)  Plant illustrations  Flora Malesiana

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