Trop. Africa to N. Australia as per WCSP;
Angola; Assam; Bangladesh; Benin; Bismarck Archipelago; Borneo; Burkina;
Burundi; Cambodia; Cameroon; Caroline Is.; Central African Repu; Chad; China
South-Central; China Southeast; Congo; East Himalaya; Equatorial Guinea; Gabon;
Gambia; Ghana; Guinea; Guinea-Bissau; Gulf of Guinea Is.; Hainan; India; Ivory
Coast; Jawa; Kenya; Laos; Lesser Sunda Is.; Liberia; Malawi; Malaya; Mali;
Maluku; Myanmar; Nepal; New Guinea; Nigeria; Northern Territory; Philippines;
Queensland; Rwanda; Senegal; Sierra Leone; Socotra; Sri Lanka; Sudan; Sulawesi;
Sumatera; Taiwan; Tanzania; Thailand; Togo; Uganda; Vietnam; Zare
as per Catalogue of Life;

Culm solitary, to 45 cm, 3-quetrous, ribbed, base incrassate. Leaves as long as culm, or shorter, to 0.25 cm wide, acute, nerves prominent. Inflorescence compound, open, to 6 cm; involucral rays 3, overtopping, the longest to 20 cm; primary rays 3-5. Spikelets 2-10, spicate or racemose, at right angles to rachis. Spikelets narrow-oblong, to 1.5 x 0.1 cm, yellow, compressed, 10-15-flowered; rachilla persistent, wing to 0.1 cm. Glumes imbricate, ovate, 0.25 cm, mucronulate, sides 4-6-nerved, margin hyaline; keel 3-nerved. Stamens 3. Nut ellipsoid, 3-quetrous, 0.1 cm, apiculate, stalked.

Flowering and fruiting: September-October
Swamps
Paleotropics
(attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi from India Biodiversity Portal);
 

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SK1389 28 AUG 2018 : 9 posts by 3 authors. Attachments (6)- around 500 kb each. 

Location: Suryabinayak, Nepal  
Date: 29 July 2018
Elevation:5000 ft.
Habit : Wild


Please check Cyperus haspan L.


Cyperus haspan L. is not listed in Nepal.

It can be Cyperus tenuiculmis, but I need a specimen to confirm the identity


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