黄花白头翁 huang hua bai tou weng

Plants 5--15 cm tall. Rhizome ca. 6 cm, 3--5 mm in diam. Leaves 4--6, not fully expanded at anthesis; petiole 2--3.5(--5.5) cm, puberulent; leaf blade narrowly ovate to oblong-ovate, 2--3.7 × 1.2--1.7 cm, with 4 pairs of lateral leaflets, 2 or 3 × pinnately divided, glabrous or sparsely hairy, apex acute, terminal lobes lanceolate-linear, 0.5--0.8 mm wide, wrinkled on both surfaces. Scape 1, erect, 5--6 cm, elongated to 14 cm in fruit, with hairs; involucral bracts 1.5--1.8 cm, similar to leaves, basally connate into a 1.5--3 mm tube, apically finely divided, puberulent. Sepals yellow or sometimes white, erect, oblong-ovate, 1--2.3 × 0.5--1 cm, abaxially thickly puberulent, apex slightly acute. Anthers yellow. Infructescences ca. 4.2 cm in diam. Achenes ca. 3 mm, thickly puberulent. Persistent styles 2--2.8 cm, basally puberulent, apically pilose. Fl. May--Jun.

Sandy slopes; ca. 300 m. Heilongjiang, Nei Mongol [Mongolia, Russia (E Siberia)].