Strychnos ignatii Bergius

A liana up to 35 m long, with stem up to 5 cm in diameter, bark densely and finely lenticellate, brown or grey, tendrils simple. Leaves ovate or elliptical to lanceolate, 4-18(-22) cm x 2-9(-12) cm, petiole 5-10 cm long. Inflorescence axillary, 10-20-flowered; corolla 7-17 mm long, tube about 3 times longer than lobes, with some long woolly hairs inside in the lower half. Fruits globose, 4-12 cm in diameter, about 10-seeded. Seeds lenticular to ellipsoid or orbicular, 20-35 mm x 10 mm x 10 mm and rough but glabrous.

S.ignatii is usually found on sandy soil.

S. ignatii is usually found in dense forest, often in dipterocarp forest on sandy soil or in mixed rain forest, sometimes on river banks.

Medicine: The seeds and bark have been prescribed as a stomachic, febrifuge, anticholeric and tonic in the Philippines. In Thailand, the seeds, roots and the wood are used as a stomachic, febrifuge and to treat malaria. Leaves are used to treat diabetes. In India, the seeds have been used to obstinate vomiting, to treat cholera, asthma, dropsy and rheumatism, and as a tonic and vermifuge. The seeds are commercially traded as a source of strychnine. The bark and the seeds are used to treat stomach-ache in Vietnam. Poison: The roots are used in Indonesia and Malaysia as arrow poison, and sometimes as a fish poison.