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

123. Ranunculus platyspermus Fischer, Prodr. 1: 37. 1824.

宽翅毛茛 kuan chi mao gen

Herbs perennial. Roots fibrous and tuberous. Stems 19--25 cm, puberulent, branched. Basal leaves 5; petiole 2--3 cm, puberulent; blade pinnate, subrhombic in outline, 2.5--4 × 2.5--4 cm, papery, abaxially sparsely appressed puberulent, adaxially subglabrous; pinnae 3 pairs, 1 or 2 × dissected, ultimate lobes lanceolate or linear. Stem leaves smaller, shortly petiolate or sessile, 3-sect, segments dissected or undivided and linear. Inflorescence terminal, 3--5-flowered. Flowers ca. 1.5 cm in diam. Pedicel 1.5--4.5 cm, sparsely puberulent. Receptacle glabrous. Sepals 5, ovate, ca. 5 mm, abaxially puberulent. Petals 5, obovate, 7--8 × 4.5--6 mm, nectary pit covered by a scale, apex rounded. Stamens numerous; anthers narrowly oblong. Aggregate fruit ovoid, ca. 6 × 7 mm. Achene orbicular-ovate, 3--3.2 × 3.2--3.8 mm, glabrous; style persistent, triangular, ca. 0.5 mm, slightly curved at apex. Fl. and fr. Apr.

Meadows; ca. 700 m. W Xinjiang [Kazakhstan, Russia (W Siberia)].

Ranunculus gobicus Maximowicz (Enum. Pl. Mong. 15. 1889), was described from W Mongolia and might occur within Xinjiang. It is close to R. platyspermus, but differs by the 3-partite leaf blade with shallowly lobed lobes.


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