Erect, woody perennial to 0.5 m high. Branchlets puberulous or with few hairs; decurrent leaf bases absent or faint. Leaves simple, sessile or with petiole to 0.5 mm long, entire and subterete to elliptic or obovate and trilobed, 2–10 mm long, concave to conduplicate above, glabrous or puberulous. Flowers mostly solitary, axillary or terminal to short shoots, sometimes looking like leafy racemes; pedicel 2–8 mm long. Sepals narrowly triangular to obovate, 2–5 mm long, glabrous or puberulous. Petals broadly elliptic, 3.5–10 mm long, glabrous, or puberulous on midrib, white to blue or pink. Stamens: filaments linear-attenuate, glandular-verrucose towards apex, sparsely ciliate; anther apiculum often inflated. Ovary glabrous or pubescent; style slender-terete, 0.5–1 mm long; stigma minute to capitate.
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