Botanical Survey of India | Flora of India

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Scandent shrubs or lianas. Leaves alternate, distichous, entire, sometimes biglandular. Inflorescences terminal and axillary, simple racemes or panicles; bracts present, often with 2 bracteoles. Sepals 5, unequal, deciduous, 2 inner ones (wings) largest, petaloid. Petals 3; 2 lateral ones free or shortly connate with the lowermost one at base, violet with citrine top; lowermost one (keel) strongly folded, dorsally crested, pink. Stamens 8, monadelphous; filaments united at base into a split sheath adnate at back to petals; anthers 2-locular; each locule dehiscing by a terminal oblique, intorse pore. Ovary 1-loculed; 1-ovuled; style subterete, dilated and incurved at apex; stigma emarginate or somewhat 2-lobed. Fruit 1-seeded indehiscent samara, apically winged or not; wings broad, coriaceous. Seeds ecarunculate, estrophiolate, exalbuminous, glabrous; cotyledons thick and fleshy.

Tropics and subtropics of Asia, Africa, Australia and America; ca 80 species, one in India.




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