Semiaquilegia rockii (Ulbrich) J. R. Drummond & Hutchinson.

Basal leaves ca. 10; petiole 8.5--14 cm, puberulous; leaf blade ovate to broadly ovate, 2.3--5.2 × 2.6--7 cm, sparsely puberulous, base cordate; lateral leaflets sessile or petiolule 1--2 mm, obliquely flabellate, unequally 2-parted; central leaflet petiolulate, broadly rhombic to flabellate-rhombic, 1.8--3.5 cm wide, 3-parted, margin sparsely obtusely toothed. Scapes 7--12 cm; inflorescences usually 1-flowered; bracts 1 or 2, linear to linear-lanceolate, 3--6 × ca. 1 mm. Pedicel 4.5--10 mm. Sepals blue, obovate to broadly elliptic, ca. 20 × 7--8 mm, abaxially sparsely pubescent, adaxially glabrous. Petals navicular, ca. 6 mm, apex obtuse; spur ca. 2 mm. Stamens 8--10 mm, glabrous. Staminodes lanceolate, as long as petals. Pistils 5. Follicles ca. 4 mm, transversely veined, sparsely puberulous; persistent styles to 8 mm. Seeds ellipsoid, ca. 1.5 mm. Fl. Mar--Apr, fr. Apr.

* Wet places by streams. N Sichuan (upper reaches of the Fu Jiang).