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  Albizia amara
 
  Family: FABACEAE/LEGUMINOSAE (Subfam.: Mimosoideae)
  Citation:  Albizia amara (Roxb.) Boivin, Encycl. 19: 34. 1838; Hook. f., Fl. Brit. India 2: 301. 1878; Gamble, Fl. Pres. Madras 432(306). 1919; Sanjappa, Legumes Ind. 54. 1992; Chakrab. & Gangop., Journ. Econ. Tax. Bot. 20: 583. 1996; Sasidh., Fl. Chinnar WLS 119. 1999. Mimosa amara Roxb., Pl. Corom. 1. 122. 1799. Acacia amara (Roxb.) Willd., Sp. Pl. 4: 1074. 1806. Acacia wightii Graham ex Wight & Arn., Prodr. 274. 1834.
  Malayalam Name(s): Chalavagai, Nenmenivaka, Oonjal, Varacchi
  Tamil name(s):
  English name(s): Oil cake tree
  Description: Much branched trees; to 13 m high; bark thin, surface grey, rough, scaly; blaze yellowish, branchlets brown, pubescent. Leaves bipinnate, alternate, stipulate; stipules minute, free, lateral, lanceolate, cauducous; rachis 3-15 cm, slender, pulvinate, with a gland near the base on the upper side, yellow tomentose; pinnae 3-16 pairs, opposite, even pinnate, 2.5-7 cm, slender, rachis with a bristle at the terminal end, with a gland in between terminal pairs on the upper side or between all pairs; leaflets 20-60, opposite, even pinnate, estipellate, lamina 3-8 x.1-2 mm, sessile, linear, base oblique, apex subacute or obtuse, margin entire, ciliate or glabrous; surface appressed-pubescent or glabrescent, chartaceous; midrib more or less central, rarely towards the distal margin, lateral nerves obscure. Flowers bisexual, white, heads solitary or 2-3 in axillary fascicles, 6-8 mm long; peduncle to 5 cm, slender, densely pubescent; bracts to 5 mm, cauducous; pedicel to 1 mm, puberulous; calyx funnel-shaped, 1-2×1-1.5 mm, puberulous, teeth 5, short; corolla, 3-4 mm long, glabrous except the bearded apex, lobes 5, oblong-lanceolate; stamens many, 1-1.5 cm long, monadelphous at base, tube as long as or slightly shorter than the corolla tube, filaments long exserted; ovary stipitate, pubescent, style filiform, stigma minute. Fruit a pod 10-24 x 2.5-4 cm, flat, greyish-brown, veiny, straight or wavy along margin, base and apex rotund, horned, indehiscent; seeds 6-13, compressed, ovate-orbicular.
  Habit: Tree
  Flowering & Fruiting: June-January
  District(s): Idukki, Kannur, Palakkad
  Medicinal: Yes
  Habitat: Dry deciduous forests
  Distribution: India, Sri Lanka and parts of East Africa
  Aquatic: No
  Epiphyte(s): No
  Saprophyte: No
  Stem parasite: No
  Root parasite: No
  Flower colour(s): White
  Weed: No
  Monocot/Dicot: Dicotyledonous Plants
  Exotic: No
  Garden: No
  Edible: No
  Vegetable: No
  Endemic to:
  IUCN status:
  Altitude: -1300
  Localities: Chinnar, Champakkad, Begur
   
 
   
 
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