Callianthemum taipaicum W. T. Wang

This species is used medicinally.

Rhizome ca. 4 mm in diam. Stems 1--4, 8--9 cm at anthesis, unbranched or branched once. Basal leaves 3--6, not fully expanded at anthesis; petiole 2--10 cm, basally sheathed; leaf blade narrowly ovate, 1.8--2.5 × 1--2.2 cm, to 6 cm in fruit, deeply parted; leaflets 2 or 3 pairs, 2-parted, apically abaxially glaucous, basal segments sessile, apical ones petiolulate. Stem leaves 1 or 2, 1--2.5 cm. Flowers 2.2--2.8 cm in diam. Sepals bluish purple, subelliptic to lanceolate, 6--9 × 2--3 mm, apex obtuse to acute. Petals 9--13, basally brown, oblanceolate to narrowly obovate, 11--14 × 3.5--6 mm, apex truncate. Stamens 4--5 mm; filaments narrowly linear; anthers narrowly oblong, ca. 0.8 mm. Pistils 18--22. Fl. Jun.

S Shaanxi (Taibai Shan).

* Grassy slopes; 3400--3600 m.