Artocarpus rigidus Blume, Bijdr. (1825)
Latin for 'stiff, or rigid'.

Synonyms
Artocarpus cuspidatus Griff., Artocarpus dimorphophylla Miq., Artocarpus echinata Roxb., Artocarpus kertau Zoll. ex Miq., Artocarpus varians Miq.

Description
Upper canopy tree up to 47 m tall and 79 cm dbh. Stem with white sap. Stipules ca. 15 mm long, hairy. Leaves alternate, simple, penni-veined, hairy below, feeling sand-paper like. Flowers ca. 1 mm diameter, yellowish, flowers fused into globose flower body. Fruits ca. 70 mm diameter, yellowish-orange, spiny syncarp with seeds in yellow-orange flesh.

Ecology
In undisturbed to disturbed mixed dipterocarp forests up to 500 m altitude. On hillsides and ridges, but also on alluvial sites. On sandy to clay soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Wood is used for beams, furniture and boats. The fruit is edible.

Distribution
Burma, Thailand, Peninsular Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo (throughout the island).

Local names in Borneo
Buruni, Dadah, Keledang, Mayuh dia, Pala munsoh, Pala musoh, Pujan.