Herbs, suffrutescent, or low shrubs, 1-2 m tall. Stem obviously striate; pith white; lenticels inconspicuous. Leaves imparipinnate; stipules leaflike or sometimes reduced to blue glands; lateral leaflets 2 or 3 pairs, alternate or opposite, narrowly ovate, 6-13 × 2-3 cm, adaxially sparsely pubescent when young, base obtuse and oblique, margin serrulate, often with 1 to several glandular teeth from below middle nearly to base, apex long acuminate; terminal leaflet ovate or obovate, base cuneate, sometimes connected with next lower leaflets, basal pair of leaflets shortly petiolulate; stipules of leaflets absent. Inflorescences terminal, compound umbellate cymes, lax, pedunculate, with leaflike bracts at base of peduncle, with 3-5 slender rays, with sparse yellow pubescence. Some flowers modified into persistent urceolate nectaries. Flowers: calyx tube urceolate, lobes triangular; corolla white, connate at base; anthers yellow or purple; ovary locules 3; styles short or nearly absent; stigma 3-lobed. Fruit red, subglobose, 3-4 mm in diam.; pyrenes 3 or 4, ovoid, ca. 2.5 mm, verrucate. Fl. Apr-May(-Aug), fr. Aug-Sep.