Habitus herb. Stem cylindrical, hairy, woody; without sap;
interpetiolar ridge insconspicuous, hairy. Leaf simple, opposite, without stipule;
petioles cylindrical, glabrous; blades lanceolate-oblong, ovate; apex acuminate; base acute; three nerved; margin serrate;
upper surface glabrous, dark green; lower surface glabrous, light green. Inflorescence axillar, peduncles terete,
glabrous; flower calyx with three sepals, glabrous; corolla with three petals, flower color bright purple. Sonerila sp was found in Mount Kinabalu.