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Ischaemum muticum
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Family:
POACEAE/GRAMINEAE
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Citation: Ischaemum muticum L., Sp. Pl. 1049. 1753; Hook. f., Fl. Brit. India 7: 132. 1896; Gamble, Fl. Pres. Madras 1723(1194). 1934; Mohanan, Fl. Quilon Dist. 474. 1984; Antony, Syst. Stud. Fl. Kottayam Dist. 456. 1989; Sreek. & V.J. Nair, Fl. Kerala Grasses 149. 1991; M. Mohanan & Henry, Fl. Thiruvanthapuram 546. 1994; Sur, Journ. Econ. Tax. Bot. 25: 423. 2001; R. Kr. Singh & P.S.N. Rao, J. Econ. Tax. Bot. 32: 818. 2008; Sunil & Sivadasan, Fl. Alappuzha Dist. 861. 2009.
Ischaemum jayachandranii R. Ansari, V.S. Ramach. & Sreek. , Curr. Sci. 53: 151. 1984; Ansari, Fl. Kasaragod Div. 467. 1985; Sreek. & V.J. Nair, Fl. Kerala Grasses 140. 1991.
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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:
Stoloniferous perennial herbs, culms 30-50 cm high, slender, creeping or erect; nodes glabrous. Leaves 4-12 x 0.3-0.6 cm, lanceolate or elliptic-lanceolate, lower ones narrowed and tapering towards base, upper ones rounded or shallowly cordate, glabrous, margins minutely serrulate; sheaths 4-10 cm long, longer than the internodes, striate, glabrous; ligule 2-4 mm long, an ovate acute membrane. Inflorescence of 2 racemes, 4-8 cm long, slender, glabrous. Joints of racemes 4-4.5 x 1.75-2 mm, turbinate, coriaceous, smooth, glabrous. Sessile spikelets 5.5-6 x 1.75-2 mm, oblong-lanceolate, unawned, callus glabrous; lower glume 5-5.5 x 1.75-2 mm, oblong-lanceolate, coriaceous below, subcoriaceous above, faintly 11-13 nerved, margins narrowly inturned, scabrid towards apex, glabrous elsewhere; upper glume 5-5.5 x 1.5-2 mm, boat-shaped, lanceolate when spread, sharply keeled, minutely winged at apex, coriaceous, faintly 3-5 nerved; lower floret male; lemma 5-6 x 1-1.5 mm, lanceolate, shortly acuminate, delicate, hyaline, faintly 3-5 nerved, margins inturned, glabrous; palea 4.5-5 x 1-1.5 mm, lanceolate, delicate, hyaline, 2-keeled, 2-nerved, glabrous; lodicules 2, each 0.75-1 x 0.3-0.4 mm, oblong or obovate, 2-horned at apex; stamens 3, anthers 1.5-2 mm long, filaments short; upper floret bisexual; lemma 4.5-5 x 1.5-2 mm, entire or very rarely notched, ovate-lanceolate, faintly 5 nerved, median nerve prominent and prolonged into a rudimentary awn when it is notched, lobes acuminate, longer than the rudimentary awn, delicate, hyaline, sprinkled with wart like outgrowths in the upper half, smooth and glabrous elsewhere; lodicules and stamens more or less similar to that of the lower floret; ovary c. 0.5 x 0.25 mm, oblong, styles 1.5-2 mm long, slender, stigmas 0.75-1 mm, long, feathery; pedicelled spikelet 5-5.5 mm long, oblong-acute, unawned; pedicels c. 1 mm long, clavate, glabrous; lower glume 5-5.5 x 1.75-2 mm, ovate-acute, narrowly winged on one margin, wing scaberulous, coriaceous, smooth and glabrous, faintly 11-13 nerved, margins inturned; upper glume 4.5-5 x 1-1.5 mm, lanceolate, keel rounded, coriaceous, smooth and glabrous; florets similar to that of sessile spikelets.
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Habit:
Herb
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Flowering & Fruiting:
July-March
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District(s):
Kottayam, Alappuzha, Kollam, Thiruvananthapuram, Kannur
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Medicinal:
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Habitat:
Banks of backwaters
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Distribution:
Australia, China, south-east Asia to Polynesia, Sri Lanka and India
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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:
No
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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:
Nileswar, Veli, Alleppey town, Thrikkunnapuzha, Kumarakam, Thanneermukkam
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