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  Lablab purpureus
  Family: FABACEAE/LEGUMINOSAE (Subfam.: Papilionoideae)
  Citation:  Lablab purpureus (L.) Sweet, Hort. Brit. (ed. 1) 481. 1827; Manilal & Sivar., Fl. Calicut 92. 1982; Vajr., Fl. Palghat Dist. 165. 1990; Ramach. & V.J. Nair, Fl. Cannanore Dist. 148. 1988; Sanjappa, Legumes Ind. 199. 1992; M. Mohanan & Henry, Fl. Thiruvanthapuram 155. 1994; Ratheesh Narayanan, Fl. Stud. Wayanad Dist. 316. 2009. Dolichos purpureus L., Sp. Pl. (ed. 2) 1021. 1763. Dolichos lablab L., Sp. Pl. 725. 1753; Hook. f., Fl. Brit. India 2: 209. 1876. Lablab vulgaris Savi, Nuovo Giorn. Lett. 8: 116. t. 8. a-c.1824.
  Malayalam Name(s): Amarapayar, Avara, Kattavara, Kattuavarai, Mochakotta, Mochapayar
  Tamil name(s):
  English name(s): Hyacinth bean, Lablab bean, Bonavist bean, Indian butter bean
  Description: Vine; branches glandular-pubescent. Leaves alternate, 3-foliolate, to 15 x 20 cm, subcoriaceous; petiole to 15 cm; stipules lanceolate, 6 mm; terminal leaflet ovate-deltoid, to 10 cm wide; laterals ovate, inaequilateral, to 11 x 8 cm, base obtuse, apex acuminate, apiculate; stipels subulate. Racemes to 20 cm; peduncle 1 2 cm; bracts ovate; bracteoles oblong. Flowers 2.5 cm wide. Calyx-tube campanulate; upper 2 lobes connate; lower 3 free. Corolla purplish, clawed. Standard orbicular, 1.5 x 2.5 cm, auricled with 2 callose appendages on inside base; wings obovate, 1.5 x 0.8 cm; keels oblong, 2.2 x 0.5 cm. Stamens 9+1; sheath 1 cm; filaments unequal. Ovary stipitate, pubescent; style incurved; stigma capitate. Pod oblong-falcate, 5 x 2 cm, tipped by style; seed ovoid, compressed; aril linear.
  Habit: Climber
  Flowering & Fruiting: October-December
  District(s): All Districts
  Habitat: Cultivated
  Distribution: Widely cultivated in the tropics
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): Violet, Blue
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: Yes
  Endemic to:
  IUCN status:
  Localities: Aruvikad, Tolpetty, Lock-hert gap, Kaikatty forests-Pothundy
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