Shorea seminis (de Vriese) Sloot, in Merr. Pl. Elm. Born. (1929)
Named after the district Seminis in West Borneo.

Synonyms
Hopea lanceolata de Vriese, Hopea seminis de Vriese, Isoptera borneensis Scheff. ex Burck, Isoptera seminis Burk, Ridleyinda borneensis O.K., Shorea borneensis Pierre, Shorea schefferiana Hance

Description
Emergent tree up to 52 m tall and 126 cm dbh. Stem with resin. Stipules ca. 7 mm long. Leaves alternate, simple, penni-veined, glabrous, often slightly glaucous below. Flowers ca. 27 mm in diameter, yellow, placed in panicles. Fruits ca. 11 mm long, yellow-brown, with five slightly enlarged calyx lobes.

Ecology
In undisturbed mixed dipterocarp forests up to 300 m altitude. Usually on alluvial sites. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The timber is used. Oil is extracted from the fruits.

Distribution
Peninsular Malaysia, Borneo (Sarawak, Brunei, Sabah, West- and East-Kalimantan), Philippines.

Local names in Borneo
Bangkirai tanduk, Engkabang chengai, Engkabang mayo, Engkabang pelepak, Engkabang tegelam, Engkabang terendah, Kakawang bintang, Kawang, Kawang tikus, Plepah, Sangkawang, Selangan batu, Selangan batu terendah, Tapge, Tekam tegelam, Tegelam gunung, Tengkawang ayer, Tengkawang batu, tengkawang chepak, Tengkawang pelepak, Tengkawang tanggoi, Tengkawang terendak, Terindah.