Erect glabrous perennial to 1 m high. Branchlets terete. Leaves well-spaced, narrowly elliptic to broadly obovate, uppermost (and sometimes medial) semiterete, 1–2 cm long, much shorter than internodes, entire. Flowers in shortly pedunculate open cymes; pedicels of lateral flowers 3–4 (–6) mm long, red, fleshy and glandular-pitted above the medial caducous bracteoles. Sepals ovate-triangular to narrowly triangular, 2.5–4 mm long, glabrous. Petals obovate, 6–9 mm long, glabrous, pink, caducous. Stamens: filaments compressed-terete, smooth or somewhat glandular-verrucose, not swollen at apex, woolly-ciliate or coarsely ciliate; anthers minutely apiculate. Disc narrow. Ovary glabrous or sparsely pilose; style slender-terete, sparsely pilose, c. 2.5 mm long; stigma subcapitate.