西伯利亚耧斗菜 xi bo li ya lou dou cai

Stems 25--70 cm tall, glabrous, unbranched or seldom 1--3-branched. Leaves basal, few, ternate; petiole 5.5--20 cm; leaf blade abaxially glabrous or basally with a few hairs, adaxially glabrous; lateral leaflets orbicular-reniform, slightly oblique, unequally 2-parted; central leaflet orbicular-reniform, 1.2--3.5 × 1.5--5 cm, 3-parted to 3-sect and apically with 3 obtuse teeth. Inflorescences 1--4-flowered; bracts 1--3. Flowers pendulous, ca. 4 cm in diam. Pedicel 1--5 cm. Sepals spreading, blue to purplish red, broadly ovate, 1.9--3 × 1--1.7 cm, apex slightly acute. Petals blue to purplish red, suberect, sometimes white, oblong, 0.9--1.3 cm, apex rounded; spur 0.6--1.2 cm, apically incurved. Stamens nearly as long as petals; anthers yellow, broadly ellipsoid, ca. 1.5 mm. Staminodes linear, ca. 9 mm. Pistils 5, erect, glabrous; ovary ca. 7 mm; styles ca. 3 mm. Fl. Jun--Jul.

Wet places by rivers; 1600--2000 m. Xinjiang [Kazakhstan, Mongolia, Russia (Siberia)].