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Cyperus digitatus
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Family:
CYPERACEAE
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Citation: Cyperus digitatus Roxb., Fl. Ind. 1: 209. 1820; Hook. f., Fl. Brit. India 6: 618. 1893; Gamble, Fl. Pres. Madras 1642(1141). 1931; Babu, Fl. Malappuram Dist. 862. 1990; Rejani, Cyperac. Kerala 168. 1991; M. Mohanan & Henry, Fl. Thiruvanthapuram 507. 1994; Sasidh., Fl. Periyar Tiger Reserve 486. 1998; Sunil & Sivadasan, Fl. Alappuzha Dist. 755. 2009.
Cyperus digitatus Roxb. var. hookeri (Boeck.) Clarke in Hook. f., Fl. Brit. India 6: 618. 1893.
Cyperus exaltatus Retz. var. oatesii Clarke, J. Linn. Soc. Bot. 21: 188. 1884.
Cyperus oatesii (Clarke) Clarke in Hook. f., Fl. Brit. India 6: 618. 1893; Rejani, Cyperac. Kerala 175. 1991; Sasidh., Fl. Shenduruny WLS 364. 1997; Sasidh., Fl. Periyar Tiger Reserve 487. 1998.
Cyperus digitatus Roxb. var. oatesii (Clarke) Kukenth. in Engl., Pflanzenr. 4, Fam 20: 57. 1935.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
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Description:
Erect, tufted, shortly, rhizomatous perennials; culms 30-65 cm tall, triquetrous above, trigonous below. Leaves basal, 15-45 x 0.5-1 cm, linear, acute, flat, scabrid on margins; sheaths upto 20 cm long, purple coloured. Inflorescence compound or decompound; leafy bracts 4-8, the longer ones upto 45 cm long; primary rays 4 to 10, unequal. Spikelets 6-10 x 1-1.5 mm, linear, weakly flattened, straw-coloured. Glumes 1.5-2 mm long, narrowly elliptic, keeled on back, pale straw-coloured. Stamens 3. Stigmas 3. Nut c. 1 x 0.5 mm, oblong-elliptic, trigonous, apiculate, greyish-brown, minutely puncticulate.
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Habit:
Herb
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Flowering & Fruiting:
December-August
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District(s):
Alappuzha, Idukki, Thiruvananthapuram, Malappuram, Kollam, Thrissur
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Medicinal:
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Habitat:
Marshy fields
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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:
Mlappara, Kavalam
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