Seetzenia

Subshrubs. Stems conspicuously sympodially branched; branches jointed, glandular, with woolly nodes. Leaves opposite, petiolate, 3-foliolate; leaflets flat, apiculate, with terminal one largest, obovate; stipules intrapetiolar. Flowers solitary, pedicellate. Calyx of 5, somewhat fleshy, valvate sepals, with a horseshoe-shaped ridge on inner face and with deflexed, glandular hairs from upper portion of ridge. Petals 0. Disc inconspicuous. Stamens 5(7 or 8) inserted on disc; filaments thick, somewhat angled, glabrous; anthers oblong, with slightly separated thecae. Ovary sessile, oblong-clavate, 5-angled, 5-locular, with a single, pendulous ovule in each locule; styles 5(6 or 7), free, spreading; stigmas capitate. Fruit a capsule, breaking into 5 mericarps from a 5-angled axis. Seeds compressed; endosperm not known.