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  Dioscorea alata
  Citation:  Dioscorea alata L., Sp. Pl. 1033. 1753; Hook. f., Fl. Brit. India 6: 296. 1892; Gamble, Fl. Pres. Madras 1512(1056). 1928; Mohanan, Fl. Quilon Dist. 413. 1984; Antony, Syst. Stud. Fl. Kottayam Dist. 399. 1989; Babu, Fl. Malappuram Dist. 806. 1990; Sivar. & Mathew, Fl. Nilambur 726. 1997; Sunil & Sivadasan, Fl. Alappuzha Dist. 690. 2009; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 874. 2009. Dioscorea globosa Roxb., Fl. Ind. 3: 797. 1832; Hook. f., Fl. Brit. India 6: 296. 1892.
  Malayalam Name(s): Kaachil, Kaavuth
  Tamil name(s):
  English name(s): Asiatic yam, Greater Yam, Yam, Water yam, White yam
  Description: Tubers one to several, polymorphic, variously branched or lobed. Stem twining to right, 4-5-winged; wings sometimes reduced to ribs. Bulbils globose, ovoid or obpyriform, occasionally with rootlets. Leaves opposite or rarely subopposite, 7-18 x 4-10 cm, broadly ovate or deltoid-ovate, base cordate or subsagittate, apex acuminate, primary veins 7; petiole to 8 cm long, winged. Male Spike on axillary branchlets, paniculate; rachis winged. Flowers c. 1.5 mm long; bracts to 1 mm long, deltoid-ovate; tepals 1-1.5 mm long, widely ovate, obtuse; stamens 6, free; pistillode conical. Female spike solitary in axils, axis 10-20 cm long. Flowers laxly arranged, sessile; bracts 1-1.5 mm long, ovate; tepals fleshy, c. 1 mm long, broadly ovate; staminodes 6, very small; ovary c. 3 mm long. Capsule 2-2.5 mm long, broadly obcordate.
  Habit: Climber
  Flowering & Fruiting: Throughout the year
  District(s): All Districts
  Medicinal: Yes
  Habitat: Cultivated, also naturalised
  Distribution: India
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): White, Green
  Weed: No
  Monocot/Dicot: Monocotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: Yes
  Endemic to:
  IUCN status:
  Localities: Nooranad
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