Abroma molle DC.
Candolle, A.P. de (1824) Prodr. 1: 485. Type: Moluccas, holo: P?.
Occasionally grows into a small tree but usually flowers and fruits as a shrub about 2-3 m tall.
Twigs armed with very short, broad-based spines. Leaf blades about 6-23 x 5.5-20 cm. Underside of the leaf blade clothed in short simple hairs and much larger 3 or 4-armed irritant hairs. Stipules about 2-4 mm long. Twig bark strong and fibrous when stripped. Mucilage glands visible in the twig pith.
Fruit a large capsule, about 4-5 x 6-7 cm, 5-lobed, with branched hairs on the outer surface and with numerous long white hairs on the inner surface. Seeds about 3-4 x 2 mm. Testa thick and horny. Seeds almost completely hidden by hairs. Cotyledons much wider than the radicle. Funicle orange-brown, thick and fleshy, aril-like. Fruit hairs irritant.
Cotyledons orbicular, about 9-13 x 10-11 mm, petioles variable, up to 12-15 mm long. First pair of leaves +/- opposite, cordate, margins toothed, undersides clothed in pale erect and 3-armed hairs. At the tenth leaf stage: leaf blade +/- cordate, margin usually both toothed and lobed (usually 3-lobed) lower surface of the leaf blade clothed in pale simple hairs and much larger three or 4-armed irritant hairs. Upper leaf blade surface clothed mainly in pale simple hairs. Stipules linear, about 2-3 x 0.5 mm. Seed germination time 24 to 48 days.