Herbs perennial, evergreen. Rhizomes creeping, slender. Leaves all basal, petiolate; stipules absent; leaf blade elliptic or broadly to narrowly ovate, leathery, margin serrate. Panicle or raceme with small bracts. Sepals (4 or)5(-7). Petals absent. Stamens (8-)10; anthers distinctive in comprising only 2 microsporangia. Carpels 2, connate proximally; ovary very shallowly subsuperior, appearing almost superior, proximally 2-loculed with axile placentation and distally 1-loculed with marginal placentation. Fruit a capsule. Seeds numerous, small, acute at both ends.