Dehaasia firma Blume, Mus. Bot. Lugd. Bat. 1 (1851)

Latin for 'strong'.

Haasia firma (Blume) Miq.

Almost indistinguishable from Alseodaphne bancana Miq.

Mid-canopy tree up to 33 m tall and 72 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined, glabrous. Flowers ca. 2.5 mm diameter, green-white-yellow, placed in panicles. Fruits ca. 16 mm long, blue-purple, fleshy drupes.

In undisturbed mixed dipterocarp, keranga and peat-swamp forests up to 700 m altitude. Usually on alluvial sites and along rivers, but also common on hillsides and ridges. Mostly on poor sandy soils or ultrabasic, but also on clay soils and limestone. In secondary forests usually present as a pre-disturbance remnant tree.

The wood is used.

Peninsular Malaysia, Borneo (Sarawak, Brunei, Sabah, West-, Central-, South- and East-Kalimantan).

Local names
Borneo: Medang, Medang sisik, Medang teras, Panguan, Tawah.