昌平毛茛 chang ping mao gen

Herbs perennial. Rhizomes short. Stems robust, ca. 70 cm, densely strigose, branched. Basal leaf 1; petiole ca. 17 cm, strigose; blade 3-partite, depressed pentagonal, ca. 8.8 × 10 cm, thinly leathery, strigose, base truncate or truncate-cuneate, central lobe narrowly cuneate, ca. 2 cm wide, margin 3-lobulate, denticulate distally, apex acute; lateral lobes obliquely broadly cuneate, unequally 2-partite, lobulate-dentate distally. Stem leaves ca. 8, smaller, short petiolate or sessile. Compound monochasium terminal, ca. 20 cm, ca. 9-flowered; bracts leaflike or linear. Flowers ca. 1.4 cm in diam. Pedicel 1.5--8 cm, strigose. Receptacle glabrous. Sepals 5, elliptic, ca. 6.5 mm, abaxially pilose. Petals 5, broadly obovate, ca. 13 × 8--10 mm, nectary pit covered by a scale, apex rounded. Stamens numerous; anthers narrowly oblong. Aggregate fruit globose, ca. 5 mm in diam. Achene obliquely broadly obovate, 2.2--2.5 × ca. 2 mm, glabrous; style persistent, triangular, 0.3--0.4 mm. Fl. and fr. Jul.

* By streams in fields. Beijing (Changping Xian).