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  Aponogeton crispus
 
  Family: APONOGETONACEAE
  Citation:  Aponogeton crispus Thunb., Nov. Gen. 4: 73. 1781; Hook. f., Fl. Brit. India 6: 564. 1898; Gamble, Fl. Pres. Madras 1598(1115). 1931; Joseph, Aquatic Angiosp. Malabar 272. 1991. Aponogeton echinatum Roxb., Fl. Ind. 2: 210. 1832; Hook. f., Fl. Brit. India 6: 565. 1894.
  Malayalam Name(s):
  Tamil name(s):
  English name(s):
  Description: Tuber obovoid, up to 5 cm. Submerged leaves very variable in shape and dimensions, linear, narrowly lanceolate or narrowly ovate, upto 50 x 4.5 cm; base (narrowly)cuneate, rounded or subcordate, apex rounded or cuneate; margin flat, undulate or crisped; parallel main nerves 5, 7 or 9. Floating leaves very variable in size, up to 20 x 5 cm, lanceolate or (narrowly) ovate; base rounded or (seldom) cordate, apex rounded, or cuneate with a blunt tip; parallel main nerves (7-)9-11. Peduncle up to 75 cm, widening towards the inflorescence. Spathe up to 2.5 cm, caducous. Inflorescence with 1 spike of up to 13 cm, fragrant, densely or rather laxly flowered. Infructescence very dense. Flowers turned towards all directions. Tepals 2, up to 2.25 x 1.75 mm, white, pink, or pale violet, 1-nerved. Stamens 6, up to 2.5 mm, widened towards the base; anthers violet, pollen yellow. Ovaries 3, up to 2 x 1 mm, often with some small excrescences; ovules 2. Fruits up to 12(-18) x 5 (-7)mm, about twice as long as thick, terminally beaked, with some irregular, hard excrescences or smooth. Seed with a simple testa. Embryo upto 12 x 5 mm; plumule attached at the base of the embryo, mostly consisting of several leaflets and fitted in a wide or narrow groove.
  Habit: Herb
  Flowering & Fruiting: September-March
  District(s): Wayanad
  Medicinal:
  Habitat: Sstagnant ponds and tanks
  Distribution: South India and Sri Lanka
  Aquatic: Yes
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): White
  Weed: No
  Monocot/Dicot: Monocotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Altitude:
  Localities:
   
 
   
 
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