Annuals 4-15 cm tall. Stem simple, slender, with dense recurved trichomes especially apically. Leaves 1-3.5 cm, with sparse recurved trichomes; rachis slender; leaflets 4-10 pairs; leaflet blades orbicular-ovate, 2.5-8 × 2.5-5 mm with basal one smallest, base almost symmetric to asymmetric. Umbels sessile, several flowered; bracts lanceolate, as long as pedicels. Pedicel ca. 3 mm. Sepals narrowly lanceolate, ca. 4 mm. Capsule ellipsoid-obovoid, ca. 3 × 2 mm. Fl. and fr. Aug-Nov.
Mountain valleys, forests, at elevations of 800-1,600 metres in southern China.
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