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Trees

Pongamia Pinnata

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Pongamia Pinnata

Family : Fabaceae

 

Characteristic Feature:

 

Habit : Evergreen trees, to18 m high, bark 10-12 mm thick, surface grey, smooth, speckled with brown; blaze-yellow; branchlets lenticellate.

 

Leaves : imparipinnate, alternate; stipules lateral, small, oblong, cauducous; rachis 10-15 cm long, slender, pulvinate, pubescent; leaflets 5-7, opposite, estipellate; petiolule 6-10 mm; slender, pubescent; leaflet 4.5-12 x 2-7 cm, elliptic-acuminate, elliptic-lanceolate, ovate or ovate-oblong, apex acuminate, margin entire, glabrous, chartaceous; lateral nerves 5-8 pairs, pinnate, ascending, slender, faint; intercostae reticulate, obscure.

 

Flowers : bisexual, purplish-white, 15-18 mm long, in lax axillary racemes, axis pubescent; bracts small, cauducous; calyx tube campanulate; minutely 5 toothed, apex truncate; corolla exserted; petals 5, clawed; standard suborbicular with curved folds above the claw; wings obliquely oblong, slightly adnate above the claws to the obtuse keel petals which are joined near the tip; stamens 10, monadelphous, the vexillary stamen free below and above; anthers uniform; ovary subsessile, inferior, 1-celled, ovules 2; style in curved, beardless; stigma capitate.

 

Fruit : a pod, 4-5 x 2-2.5 cm, obliquely oblong, flat, thick, pointed at both ends, indehiscent, slightly falcate.

 

seed : one, reniform.

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