Archidendron clypearia (Jack) I.C.Nielsen - MIMOSACEAE

Basionym : Inga clypearia Jack

Synonym : Abarema clypearia (Jack) Kosterm.
Pithecellobium angulatum Benth.

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Botanical descriptions Habitat and ecology Distribution

Botanical descriptions :

Diagnostic characters : Twigs winged, ridged. Leaves bipinnate, rachis with glands. Flowers white. Fruit red pods coiled with black seeds.
Habit : Small, evergreen tree up to 10 m tall.
Trunk & bark : Bole straight or leaning, bark red-brown, smooth.
Branches and branchlets or twigs : Twigs angular, with U-shaped ridges, glabrous.
Exudates : Exudate absent.
Leaves : Leaves bipinnate, alternate and spiral, slightly to densely hairy, 3-10 pairs of pinnae, 3-12 pairs of opposite leaflets, leaflets asymmetrically rhomboid, with a diagonal solitary main vein, secondary veins obtuse, intramarginal veins looped, tertiary veins invisible. Rachis with raised, cup-shaped glands.
Stipules present.
Inflorescences or flowers : Flowers white arranged in an inflorescence, terminal or in the upper leaf axils, bisexual, pedicels 1--3 mm long.
Fruits : Fruit up to 20 cm long, pod twisted into an orange-red coil with black seeds.
Seeds : Seeds 4-12, black, glossy.

Habitat and ecology :

Common in all moister forest types up to 1700 m altitude.

Distribution :

India, Burma (Myanmar), China (South), Malesia, Thailand, Indochina, Laos (Khammouan).

Remark/notes/uses :
Stem bark decoction used as poultice for abcesses. Leaves and bark used to stain cloth black.

Specimens studied :
BT 322, BT 331, BT 765 (Herbarium of Faculty of Sciences-NUoL, NHN-Leiden and CIRAD-Montpellier).

Literature :
Gardner S., Sidisunthorn P. & Anusarnsunthorn V. 2000. A field guide to Forest Trees of Northern Thailand. Kobfai Publishing Project. Bangkok. Thailand.

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