Monoecious, spiny shrub or small tree to 5 m. Leaves in tufts, obovate to elliptic, toothed, dull green above, paler beneath, venation distinct. Flowers in lax, axillary cymes, white. Capsules pear-shaped, brown.
Shrub or small tree, up to 7 m high, usually armed. Leaf margin revolute; lamina ± elliptic. Capsule 2-or 3-lobed, reddish when mature. Flowers creamy white.