Cleistanthus paxii Jabl. in Engl., Pflanzr. (1915)

Named after F. Pax [1858-?], a German botanist.

Understorey tree up to 13 m tall and 11 cm dbh. Stipules small. Leaves alternate, simple, penni-veined, hairy below, strong venation, giving the leaf a bullate appearance. Flowers ca. 5 mm in diameter, green-yellowish, placed in axillary bundles. Fruits ca. 8 mm long, green-yellowish, dehiscent, 3-lobed capsules.

In undisturbed mixed dipterocarp forests up to 900 m altitude. Common along rivers and on hillsides and ridges, usually on sandy soils, but also on limestone.


Local names
Borneo: Ambuasa.