A shrub 4–8 ft. high, with slender pubescent, later glabrous, branches. Leaves shortly petioled, elliptic, entire, acuminate or caudate-acuminate, acute, cuneate at the base, with a few scattered hairs, especially on the lower surface, dark green above, lighter beneath, 3 1/2 in. long, 1 1/2 in. broad. Flowers 5-merous, in pairs in the leaf-axils, shortly pedicelled, silky-pubescent, 1–1 1/2 in. long. Calyx-lobes broadly elliptic, parallel-nerved, about 5 lin. long, at length reflexed. Petals longer than the calyx-tubes, divided to the base, at length reflexed. Segments 10, narrowly oblong or spathulate, 3/4 in. long. Ovary glabrous. Fruit not seen.