Mastixia trichotoma Bl., Bijdr. (1826)
Latin for 'divided in three parts'.

Synonyms
Mastixia acuminatissima Bl., Mastixia caesia Bl., Mastixia clarkeana King, Mastixia clarkeana var. macrophylla King, Mastixia junghuniana (non Miq.) Clarke, Mastixia kimanilla Bl., Mastixia kimanilla var. caesia Miq., Mastixia korthalsiana Wangerin in Fedde, Mastixia korthalsiana var. macrophylla Wangerin, Mastixia laxa Bl., Mastixia laxa var. angustifolia Bl., Mastixia maingayi Clarke, Mastixia maingayi var. subtomentosa King, Mastixia premnoides Hall., Mastixia propinqua Ridl., Mastixia rostrata (non Bl.) Ridl., Vitex premnoides Elm.

Description
Upper canopy tree up to 41 m tall and 71 cm dbh. Stipules absent. Leaves opposite, simple, penni-veined, often rather large. Flowers ca. 3 mm in diameter, yellow-orange, placed in branched inflorescences. Fruits ca. 23 mm long, blue-purple-black, fleshy drupes.

Ecology
In mixed dipterocarp, keranga and submontane forests up to 1500 m altitude. Usually on hillsides and ridges with sandy to clayey soils. Also found on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Distribution
Thailand, Peninsular Malaysia, Sumatra, Java, Bali, Borneo (Sarawak, Brunei, Sabah, West-, Central-, South- and East-Kalimantan), Philippines, Celebes, Moluccas, New Guinea.

Local names in Borneo
Medang, Medang aima, Medang kanigara, Seragam pipit.