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

9. Ranunculus platypetalus (Handel-Mazzetti) Handel-Mazzetti, Acta Horti Gothob. 13: 155. 1939.

大瓣毛茛 da ban mao gen

Herbs perennial. Roots fibrous, subequally thick. Stems 2--12 cm, subglabrous or sparsely puberulent, simple or branched. Basal leaves 2--5; petiole 2.5--6 cm, glabrous; blade 3-partite, pentagonal, 0.5--1.4 × 0.7--2.3 cm, papery, glabrous or sparsely ciliate, base cordate, central lobe obovate or broadly rhombic, 3-lobed or 3-dentate; lateral lobes obliquely flabellate, unequally 2-lobed. Stem leaves 1--3, petiolate or subsessile, 3-partite or 3-sect, rarely undivided. Flowers solitary, terminal, rarely axillary, 1--2 cm in diam. Receptacle sparsely puberulent or glabrous. Sepals 5(or 6), long elliptic, 4--9 mm, glabrous or abaxially sparsely puberulent. Petals 5, broadly obovate, 5.5--10 × 4--11 mm, nectary pit without a scale, apex subtruncate or rounded, emarginate. Stamens numerous; anthers oblong. Carpels numerous, glabrous; style slightly shorter than ovary. Fl. Jun--Aug.

* 3800--4100 m. NW Yunnan.

1 Basal leaves 0.7--1.2 cm wide; stem leaves distinctly petiolate, 3-partite or 3-sect; flowers 1--1.4 cm in diam.; receptacle sparsely puberulent   9a var. platypetalus
+ Basal leaves 1.2--2.3 cm wide; stem leaves subsessile, 3-lobed or undivided; flowers 1.7--2 cm in diam.; receptacle glabrous   9b var. macranthus


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