Shrub with several ? erect stems or sometimes a liane. Leaves paired, shortly petiolate, uninerved; stipules with a single deltoid lobe from a short sheathing base on young stems; later these lobes are deciduous leaving only the truncate sheath. Flowers hermaphrodite, not dimorphic, small, in composite fairly lax terminal inflorescences plus inflorescences from the upper axils, mostly many-flowered. Calyx-tube very short, campanulate; lobes 4, equal, lanceolate-triangular. Corolla-tube very shortly cylindrical; lobes 4, oblong-lanceolate, just over twice as long as the tube. Stamens 4, exserted further than the corolla-lobes. Ovary 2-locular, each locule with many (18–20) ovules on a placenta affixed close to the base; style filiform, exserted for about the same distance as the stamens; stigma small, capitate, slightly bifid. Fruit capsular, with a low conical beak, loculicidal from the apex of the beak and septicidal below, crowned by the persistent sepals.
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