Tiger's Claw

Perennial, Trees, Woody throughout, Nodules present, Stems erect or ascending, Stems greater than 2 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Leaves absent at flowering time, Leaves alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules deciduous, Stipules free, Leaves compound, Leaves pinnately 3-foliolate, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Stipels present at base of leaflets, Leaflets 3, Leaves glabrous or nearly so, Inflorescences racemes, Inflorescence axillary, Inflorescence terminal, Bracts very small, absent or ca ducous, Bracteoles present, Flowers zygomorphic, Calyx 2-lipped or 2-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals red, Banner petal ovoid or obovate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel petals fused on sides or at tip, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit tardily or weakly dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit beaked, Fruit glabrous or glabrate, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.

Erythrina orientalis is a plant species in the genus Erythrina. This plant is a climbing herb that grows up to 6 m long, and has compound leaves with petioles that are 5–6 cm long. Its leaflets emerge in groups of three, and are 7–9 cm long and 5–8 cm wide. The plant's young leaves, flowers and pods are consumed as vegetables.

The pterocarpan orientanol A can be isolated from the wood of E. orientalis. The pterocarpans orientanol B and C, folitenol and erythrabyssin II, the pterocarpene erycristagallin and the prenylated isoflavone bidwillol A can be isolated from the roots.