Botanical Survey of India | Flora of India

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Thalictrum alpinum L., Sp. Pl. 545. 1753; Hook. f. & Thomson in Fl. Brit. India 1: 18. 1872. T. alpinum L. var. microphyllum (Royle) Hand.-Mazz., Symb. Sin. 311. 1931.

Herbs, perennial, glabrous; stems very short or up to 10 cm long, naked. Leaves all radical, 4 - 10 cm across, pinnate or bipinnate; leaflets small, broadly obovate, often 3-lobed or 3-partite, pale beneath; lobes subacute or rounded at apex, glabrous; veins prominent beneath. Scapes simple, 8 - 20 cm long, bearing small greenish flowers in racemes; pedicels short, reflexed in fruit. Sepals 4, elliptic, 2 - 3 x 1 mm. Stamens 5 - 10; anthers beaked. Achenes 5 - 7, supported on reflexed stalks, elliptic or narrowly oblong, obscurely ribbed, shortly attenuate, stalked at base; styles triangular, erect at first, later elongated and recurved.

Fl. & Fr. May - Aug.

Distrib. India: Himalayas, temperate and alpine grassy slopes, 3500 - 4570 m. Jammu & kashmir, Himachal Pradesh, Uttar Pradesh and Sikkim.

Bhutan, Nepal, Pakistan, China (Tibet), Europe and N. America.

Notes. Widely distributed in the arctic-alpine regions of the Northern Hemisphere and is known as highly variable. Hara (in Fl. E. Himal. 3rd report: 40. 1975) states that this species seems to show the widest range of variation in the Himalayas. Hara(in Enum. Fl. Pl. Nepal 2: 21. 1979) merged the varieties acaule and microphyllum with the species.

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