Aglaia simplicifolia (Bedd.) Harms, in Engl. & Prantl. Nat. Pflanzenfam. 3, 4 (1896)
Latin for 'with simple leaves'.

Synonyms
Aglaia haplophylla Harms, Aglaia heterobotrys Merr., Aglaia matthewsii Merr., Aglaia meliosmoides Craib, Aglaia mirabilis Harms, Aglaia neotenica Kosterm., Aglaia odoardoi Merr., Aglaia shawiana Merr., Aglaia sterculioides Kosterm., Aglaia triandra Ridl., Aglaia unifoliolata Ridl., Beddomea racemosa Ridl., Beddomea simplicifolia Bedd.

Description
Understorey tree up to 12 m tall and 17 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined, usually hairy below. Flowers ca. 1 mm diameter, brownish, placed in panicles. Fruits ca. 21 mm diameter, yellow-brown, fleshy capsules. Seeds with transparent aril.

Ecology
In undisturbed mixed dipterocarp forests up to 600 m altitude. Usually on hillsides and ridges with sandy soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant.

Distribution
India, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Borneo (Sarawak, Brunei, Sabah, West- and East-Kalimantan).

Local names in Borneo
Belayang, Bunau.