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Trapa natans
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Family:
TRAPACEAE
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Citation: Trapa natans L., Sp. Pl. 120. 1753; Vajr., Fl. Palghat Dist. 209. 1990; Joseph, Aquatic Angiosp. Malabar 255. 1991; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 386. 2009.
Trapa natans L. var. bispinosa (Roxb.) Makino, Iinuma Somoku-Dzusezii (ed.3) 1: 137. 1907.
Trapa bispinosa Roxb., Pl. Corom. t. 234. 1815; Hook. f., Fl. Brit. India 2: 590. 1879; Gamble, Fl. Pres. Madras 518(366). 1919.
Trapa quadrispinosa Roxb., Fl. Ind. 1: 430. 1820; Hook. f., Fl. Brit. India 2: 590. 1879 pro syn.
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Malayalam Name(s):
Karimbolam, Kakkamullu, Kuzhimundan, Vankottakkaya
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Tamil name(s):
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English name(s):
Caltrops, Singhara, Water chestnut
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Description:
Floating leaves 1-3 x 1.5-4 cm, dentate, glabrous above and pubescent to villous below, especially on the nerves; petiole up to 10 cm long, dilated near the leaf base, villous. Sepals c. 5 mm long, ovate, villous, especially in the middle portion. Petals c. 8 mm, white. Fruit 1.3 x 1.7 cm, excluding spines; spines 4, 1-1.3 cm long, two of which are shorter.
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Habit:
Herb
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Flowering & Fruiting:
September-May
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District(s):
Thrissur, Kollam, Thiruvananthapuram, Palakkad, Alappuzha, Ernakulam, Malappuram, Kozhikkode, Wayanad
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Medicinal:
Yes
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Habitat:
Ponds and tanks
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Distribution:
Cosmopolitan
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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):
Yellow, Pink
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Weed:
Yes
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Monocot/Dicot:
Dicotyledonous 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:
Olavakkot
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