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Herbs perennial. Roots terete. Flowering stems erect or basally slightly curved, 15-20 cm tall, together with petioles densely silvery tomentose and villous. Radical leaves 5-10 cm long including petiole; stipules brown, membranous, abaxially appressed white sericeous, later glabrescent; leaf blade 3-foliolate; leaflets sessile or terminal one very shortly petiolulate, obovate, elliptic, or broadly ovate, 1.5-2 cm long, 1-1.5 cm wide, abaxially densely silvery tomentose, appressed silvery sericeous on veins, adaxially appressed silvery sericeous, base cuneate or broadly so, margin sharply incised serrate, apex obtuse; cauline leaves 2 or 3, shortly petiolate, small; stipules green, ovate or ovate-lanceolate, herbaceous, abaxially tomentose and villous, margin entire, apex acuminate. Inflorescence terminal, 2-3-flowered. Flowers ca. 2 cm in diameter; pedicel 2-2.5 cm long, tomentose and villous. Sepals triangular-lanceolate, apex acuminate; epicalyx segments elliptic-ovate or elliptic-lanceolate, nearly equaling sepals, abaxially appressed white sericeous. Petals yellow, obcordate, ca. 2 times as long as sepals, apex markedly emarginate. Stamens yellow. Style subterminal, yellow, ca. 2.5 times as long as ovary; stigma slightly dilated, capitate.

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Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Wen, Jun

Source: Plants of Tibet

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