Uncaria longiflora (Poir.) Merr., Interpr. Herb. Amboin. 480 (1917)

Species name meaning 'long flowers'.

Nauclea longiflora Poir.
Uncaria pteropoda Miq.

A big climber, branches stout; leaves elliptical to broadly ovate, 12.5-16 cm x 9-12.5 cm, glabrous, coriaceous, petiole 9-20 mm long, strongly winged or not, stipules entire; flowering head up to 3 cm in diameter, 10 cm in fruit, peduncle up to 3 cm long, flowers short pedicellate, yellowish, calyx fusiform, lobes elliptical to oblong, pubescent, corolla up to 2.3 cm long, pubescent; capsule fusiform, 1.3-2.5 cm long, pubescent. [from PROSEA]

Common in open areas in thickets and forest edges, also on stony soils.

Used against rheumatism. The leaves are used for rubbing on the body to relieve pain. In the Moluccas, the juice of the leaves was used for thrush, and mixed with iron-rust for framboesia (yaws).

From Peninsular Thailand and Malaysia to the Philippines and New Guinea.

Local names
Indonesia: daun getah gambir (Moluccas), kait-kait darat (Malay).
Malaysia: kait-kait darat, kait besi.
Thailand: kio cho (peninsular).