Small shrubs with a single haustorial connection, glabrous. Leaves subopposite, shortly petiolate; nerves few, spreading to strongly ascending, sometimes obscure. Flowers 2–6 in shortly pedunculate axillary umbels; bract shortly cupular, with a small limb, gibbous or spurred dorsally. Calyx cupular to shortly tubular, split by expanding corolla. Corolla straight or bent in bud, 5-merous with a short tube, yellow to red, banded green or white, developing vents in mature buds; lobes linear-oblanceolate, often somewhat coherent, but not around a V-split in the tube, reflexed about the middle. Filaments attached at the base of corolla-lobes, erect and filiform below, upper part sometimes slightly thickened and inrolled at anthesis, with a small tooth in front of the anther; anthers linear, 4-thecous, truncate. Style filiform; stigma capitate. Berry obovoid, not seen mature.