Homalanthus populneus (Geiseler) Pax, in Engl. & Prantl. Nat. Planzenfam. 3, 5 (1890)

Latin for 'similar to the poplar tree'.

Carumbium populneum (Geiseler) Mull.Arg.
Carumbium populneus var. minus Mull.Arg.
Carumbium populifolium Reinw. ex Blume
Excoecaria laevis Blanco
Homalanthus leschenaultianus A.Juss.
Homalanthus populneus var. genuinus Pax & K.Hoffm.
Homalanthus populneus var. laevis (Blanco) Merr.
Homalanthus populneus var. minor (Mull.Arg.) Merr.
Homalanthus populneus var. siccus Pax
Homalanthus sulawesianus Airy Shaw
Stillingia populnea Geiseler

Understorey tree up to 12 m tall and 12 cm dbh. Stipules ca. 14 mm long, red. Leaves alternate, simple, penni- to tripli-veined, glabrous, whitish below, sometimes with two glands at base of upper leaf surface. Flowers ca. 1.5 mm diameter, yellowish, placed in long racemes. Fruits ca. 5 mm diameter, green, dehishent capsules, seeds with aril.

In rather heavily disturbed, open sites like scrub and roadsides up to 1500 m altitude.

The roots are used locally as a medicine against evil spirits, the leaves are used against diarrhea, while the fruits are applied to treat wounds. The bark and leaves also form ingredients for a black dye. The leaves are used as an ingredient in fish poison.

Thailand, Peninsular Malaysia, Sumatra, Java, Lesser Sunda Islands, Borneo (Sarawak, Brunei, Sabah, West-, South- and East-Kalimantan), Philippines, Celebes, Moluccas.

Local names
Borneo: Bangki, Belantas, Belok malok, Bubalong, Bungalau, Buta-buta, Buta-buta paya, Buta lalat, Butaq, Delamato, Gela, Kalang matoh, Kayu kelepela, Kelebutag, Kepelak, Ketapang lalat, Laru, Ludai api, Majin, Merendang, Sedaman, Tapang lalat.