Alstonia iwahigensis

Alstonia iwahigensis is a tree in the dogbane family Apocynaceae.

Description
Alstonia iwahigensis grows as a medium to large-sized tree up to 45 m tall, with a trunk diameter of up to 100 cm. The bark is greyish, yellowish or dark brown. Its fragrant flowers feature a yellow or pinkish corolla.

Distribution and habitat
Alstonia iwahigensis is native to Borneo and Palawan. The species is found in forests and on hillsides from sea level to 500 m altitude.