Sapindus rarak DC., Prod. 1:608 (1824)

Latin for the local Malesian plant name 'rerak or rerek'.

Dittelasma rarak (DC.) Hook.f.
Saponaria Rarak Rumph.
Sapindus angustifolius Blume

Tree, up to 42 m high, dbh up to 1 m. Branchlets terete, up to 1 cm thick, inconspicuously lenticellate, brownish to blackish, fulvous tomentellous, glabrescent. Leaves compound, (7-)9-13-jugate, up to 50 cm long, glabrous. Leaflets subopposite to alternate, lanceolate-ovate, upper half rounded-attenuate to cuneate; apex obtuse to tapering acute-acuminate, mucronate; midrib slightly raised above. Inflorescences up to c. 35 cm long, densely fulvous- to ferrugineous-tomentellous. Flowers zygomorphic, white. Sepals flat, hardly petaloid, outside densely appressed long fulvous-hairy. Petals 4, lanceolate-ovate to elliptic, 3 by 1-2 mm, short-clawed, outside densely appressed long fulvous-hairy, woolly along the margin. Disc semi-annular, glabrous. Filaments densely long-hairy outside and along the margin, the apical part excepted, in male flowers 2.5 mm, in female ones 1.2-1.5 mm. fruit parts subglobular, 2 by 1.8 cm, carnate, red, glabrous. Seeds subglobular, 1.2-1.5cm diam. [from Flora of China]

Forests, mainly under seasonal conditions; c. 200-1600 m altitude.

Wood hard, but not durable. Fruits and seeds used as buttons and beads.

India (Assam), Southern China, Indo-China and Taiwan to Malay Peninsula, Sumatra, Bangka, Java, Madura, Lombok and Sumbawa.

Local names
Maobanwuhuanzi (China).