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Cyperus javanicus
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Family:
CYPERACEAE
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Citation: Cyperus javanicus Houtt., Nat. Hist. 2: 13. 1782; Mohanan, Fl. Quilon Dist. 443. 1984; Ansari, Fl. Kasaragod Div. 420. 1985; Ramach. & V.J. Nair, Fl. Cannanore Dist. 507. 1988; M. Mohanan & Henry, Fl. Thiruvanthapuram 508. 1994; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 925. 2009.
Mariscus javanicus (Houtt.) Merr. & Metcalfe, Lingnan Sci. J. 21. 4. 1945; Antony, Syst. Stud. Fl. Kottayam Dist. 434. 1989; Babu, Fl. Malappuram Dist. 891. 1990; Rejani, Cyperac. Kerala 358. 1991; Sasidh., Fl. Periyar Tiger Reserve 498. 1998;; Sunil & Sivadasan, Fl. Alappuzha Dist. 795. 2009.
Cyperus pennatus Lam., Illustr. 1: 144. 1791.
Mariscus albascens Guad. in Freyc., Voy. Bot. 415. 1826; Hook. f., Fl. Brit. India 6: 623. 1893.
Mariscus pennatus (Lam.) Domin, Biblioth. Bot. 85: 440. 1915; Gamble, Fl. Pres. Madras 1645(1143). 1931; Manilal & Sivar., Fl. Calicut 312. 1982.
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Malayalam Name(s):
Vaaleera
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Tamil name(s):
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English name(s):
Sharp Cyperus
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Description:
Erect, tufted perennials with short rhizome; culms 40-85 cm tall, obtusely trigonous, glaucous-green. Leaves many, 45-100 x 0.5-1.3 cm, linear, gradually acuminate, scabrid on margins and midrib, coriaceous, glaucous-green; sheaths 5-12 cm long, basal ones dark brown. Inflorescence large, compound, 7-15 x 8-20 cm; primary rays 6-12; leafy bracts 5-7, the lower ones much exceeding the corymb, the longest upto 70 cm long. Spikelets densely spicate, 4-7 x 1.5-3 mm, oblong-lanceolate, acute, straw-coloured. Glumes distichous, 2.5-3.5 x 2-2.5 mm, broadly ovate, apex acute, subcoriaceous, keel greenish, pale brown, margins white hyaline, basal 2 glumes empty. Stamens 3. Stigmas 3. Nut 1-1.5 x 0.5-1 mm, obovate, trigonous, black-brown.
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Habit:
Herb
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Flowering & Fruiting:
Throughout the year
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District(s):
Kottayam, Alappuzha, Kasaragode, Kollam, Idukki, Kannur, Kozhikkode, Thiruvananthapuram, Malappuram, Wayanad
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Medicinal:
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Habitat:
Marshy areas in degraded forests and mangrove forests, also in the plains
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Distribution:
Pantropical
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Aquatic:
Yes
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Epiphyte(s):
No
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Saprophyte:
No
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Stem parasite:
No
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Root parasite:
No
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Flower colour(s):
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Weed:
Yes
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Monocot/Dicot:
Monocotyledonous Plants
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Exotic:
No
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Garden:
No
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Edible:
No
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Vegetable:
No
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Endemic to:
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IUCN status:
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Altitude:
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Localities:
Nelliparakkandom, Tellicherry, Kumbla, Nileswar, Alappuzha beach
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