北侧金盏花 bei ce jin zhan hua

Plants perennial, glabrous except for pistils. Rhizome thick. Stems ca. 40 cm tall, 3--5 mm in diam., basally with sheathlike scales. Stem leaves ca. 15, sessile, ovate to triangular, ca. 6 × 4 cm, 2 or 3 × finely pinnately divided; ultimate segments narrowly linear to narrowly lanceolate, 1--1.5 mm wide, sometimes with small teeth. Flowers 4--5.5 cm in diam. Sepals yellowish green, rounded-ovate, ca. 1.5 × 6 mm, apex attenuate. Petals yellow, narrowly obovate, 2--2.3 × 0.6--0.8 cm, apex rounded to obtuse and with unequal teeth. Stamens ca. 1.2 cm; anthers narrowly oblong, ca. 1 mm. Styles ca. 1 mm, bent. Achenes ca. 4 mm, sparsely pubescent. Fl. Jun.

Sunny slopes; ca. 1900 m. NE Nei Mongol, N Xinjiang [Mongolia, Russia; Europe].