Shrublets erect, 30--60 cm tall. Branches terete, shallowly 6-grooved, pubescent. Leaves pinnate, 5-foliolate, ternate, or sometimes simple; petiole 1--5 cm; leaflet blades broadly ovate, orbicular-ovate, or ovate, 1--3(--3.8) × 1--3 cm, thick papery, often 3-lobed, abaxially puberulous on veins, adaxially sparsely puberulous, base truncate, rounded, or broadly cuneate, margin denticulate, apex acute to short acuminate; basal veins abaxially prominent. Flowers polygamous, solitary, terminal, ca. 1 cm in diam. Pedicel 2--4 cm, densely puberulous. Sepals 4, bluish to purple, erect, narrowly oblong, 1--2 × 0.3--0.7 cm, slightly widened toward apex, abaxially densely puberulous, adaxially glabrous, apex mucronate and recurved. Stamens 5--10 mm; filaments pilose near apex; anthers narrowly oblong, ca. 2.5 mm, abaxially with a few hairs on connective, apex minutely apiculate. Ovaries pubescent. Style ca. 6 mm, densely villous, apically glabrous. Achenes elliptic, 4--5 × ca. 2 mm, pubescent; persistent style ca. 2.5 cm, plumose. Fl. Jul--Sep, fr. Aug--Oct.

* Limestone areas; 3400--3600 m. Taiwan.