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FOC | Family List | FOC Vol. 6 | Ranunculaceae | Ranunculus

5. Ranunculus rigescens Turczaninow ex Ovczinnikov, Fl. URSS. 7: 389. 1937.

掌裂毛茛 zhang lie mao gen

Ranunculus manshuricus S. H. Li; R. rigescens var. leiocarpus Kitagawa.

Herbs perennial. Roots fibrous, subequally thick. Stems 15--22 cm, glabrous, branched. Basal leaves ca. 3; petiole 3--8.5 cm, glabrous or sparsely pubescent; blade 7--9-palmatifid, lobes oblanceolate, sometimes 3-lobed and with coarse triangular teeth cordate-orbicular or cordate-pentagonal in outline, 1--2 × 1.4--3 cm, papery, glabrous, base cordate to truncate-cordate. Lower stem leaves similar to basal ones, with shorter petiole, upper ones sessile, palmatisect, segments narrowly linear. Flowers solitary, terminal, ca. 2 cm in diam. Receptacle puberulent. Sepals 5, broadly ovate, 3.5--5 mm, abaxially yellowish puberulent. Petals 5, obovate, ca. 10 × 8 mm, nectary pit without a scale, apex rounded; stamens numerous; anthers oblong. Aggregate fruit ovoid, 6--9 mm. Achene slightly bilaterally compressed, obliquely obovoid, 1.5--2 × 1--1.4 mm, glabrous; style persistent, ca. 0.4 mm. Fl. May--Jul.

Meadows, by streams; ca. 700 m. Nei Mongol, Xinjiang [Mongolia, Russia (Siberia)].


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