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Acacia horrida
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Family:
FABACEAE/LEGUMINOSAE (Subfam.: Mimosoideae)
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Citation: Acacia horrida (L.) Willd., Sp. Pl. 4: 1082. 1806; Sanjappa, Legumes Ind. 40. 1992; M. Mohanan & Henry, Fl. Thiruvanthapuram 172. 1994; Chakrab. & Gangop., Journ. Econ. Tax. Bot. 20: 613. 1996.
Mimosa horrida L., Sp. Pl. 521. 1753.
Acacia latronum L.f., Suppl. Pl. 438. 1781; Hook. f., Fl. Brit. India 2: 296. 1878; Gamble, Fl. Pres. Madras 427(302). 1919.
Mimosa latronum (L.f.) Willd., Sp. Pl. 4: 1077. 1806; Hook. f., Fl. Brit. India 2: 296. 1878.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
Robber-thorn tree
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Description:
Shrubs to small trees with spreading crown; branchlets black or brownish, terete, glabrous; spines stipular, in pairs, 0.5-6 cm long, often connate at base, straight, ivory-white or often brown, the larger ones hollow and horn-like. Leaves bipinnate: rachis 1-3 cm long, slender, sparsely yellowish puberulous to glabrous; petioles 0.5-1 (-2) cm long; glands solitary, more or less midway or occasionally near the base of petiole, circular, sessile, 0.5-0.8 mm diameter; pinnae 2-5 pairs, 0.5-1.5 cm long, sparsely puberulous to glabrous; leaflets 6-15 pairs, subsessile, linear or oblong, 0.8-4 x 0.4-1 mm, subequal or rounded at base, obtuse to rounded or subacture at apex, firmly chartaceous, glabrous, greenish or brown when dry; main vein prominent; nervules obscure. Inflorescences: axillary, spicate, solitary or 2-together, glabrous, 2-5.5 mm long; peduncles 0.5-1 cm long. Flowers: creamy, white or yellowish, fragrant. Calyx campanulate, 1-2 x 1.5-1.8 mm, glabrous; teeth triangular or ovate, 0.5-0.8 mm long. Corolla 2-3 mm long, glabrous; lobes 4-5, triangular, 1-1.5 x 0.6-1 mm. Stamens 3-4.5 mm long. Ovary subsessile, subglobose; ca 1.5 mm diameter, style 3-3.5 mm long. Pods falcate-oblong, 2.5-4.5 x 1-2 cm, flattened, inflated, straight to curved, unlobed, thin-walled, rounded to obtuse at apex, glabrous, prominently and transversely veined, dark reddish-brown or blackish when dry, stipe ca 5 mm long; seeds 1-4, ovate to suborbicular, flattened, 4.5-5.5 mm diameter.
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Habit:
Tree
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Flowering & Fruiting:
July-May
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District(s):
Thiruvananthapuram
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Medicinal:
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Habitat:
Dry deciduous forests
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Distribution:
India and Myanmar
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Aquatic:
No
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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):
White
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Weed:
No
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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:
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