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Blyxa octandra
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Family:
HYDROCHARITACEAE
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Citation: Blyxa octandra (Roxb.) Planch. ex Thw., Enum. Pl. Zeyl. 332. 1864; Gamble, Fl. Pres. Madras 1397(978). 1928; Manilal & Sivar., Fl. Calicut 281. 1982; Mohanan, Fl. Quilon Dist. 386. 1984; Ansari, Fl. Kasaragod Div. 364. 1985; Antony, Syst. Stud. Fl. Kottayam Dist. 378. 1989; Ramach. & V.J. Nair, Fl. Cannanore Dist. 443. 1988; Babu, Fl. Malappuram Dist. 769. 1990; Joseph, Aquatic Angiosp. Malabar 423. 1991; M. Mohanan & Henry, Fl. Thiruvanthapuram 442. 1994; Subram., Fl. Thenmala Div. 362. 1995; Sunil & Sivadasan, Fl. Alappuzha Dist. 670. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 913. 2009.
Vallisneria octandra Roxb., Pl. Corom. 2: 34, t. 165. 1802.
Blyxa roxburghii L.C.Rich., Mem. Inst. Paris. 12: 23-24, tt. t. 5. 1812; Hook. f., Fl. Brit. India 5: 660. 1888.
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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:
Aquatic herbs. Leaves elongate, 10-16 x 0.5-1 cm, 7-9-nerved, glabrous, narrow at base, apex attenuate. Flowers dioecious. Male spathes 7-8 x 0.2-0.3 cm. Flowers to 1 x 0.3 cm, 6-9 per spathe; peduncle equal or exceeding leaves; pedicel 1.5-3 cm. Sepals 3, oblong, 9 x 1.5 mm, obtuse. Petals to 3.5 x 0.1 mm. Stamens 9(10-12); filaments unequal, 0.5-1.5mm; anthers subequal, to 3 mm; pistillodes 3, somewhat connate at base, to 2 mm. Female plants often dwarfed, to 10 cm: flower solitary; peduncle slightly overtopping leaves, to 12 cm; pedicel 0. Ovary 2 x 0.1 cm, equal to spathe, rostrum 3-7 cm, filiform. Fruit to 4 cm, torulose, finely ribbed, glabrescent; seeds ovoid-oblong, not tailed, 1.5 x 0.8 mm, subacute-obtuse at the ends, alternately long-/short-tubercled in 7 or 8 rows.
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Habit:
Herb
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Flowering & Fruiting:
June-October
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District(s):
All Districts
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Medicinal:
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Habitat:
Stagnant pools, ponds and in flooded paddy fields
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Distribution:
Indo-Malesia to Australia
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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:
Kannoth, Kalliassey, Mambaram, Bela, Velvara, Thamarakulam, Thenmalai
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