Isopyrum thalictroides, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 210

1. I. thalictroides L. , Sp. Pl. 557 (1753).

10-30 cm, slender, glabrous, more or less glaucous. Rhizome creeping. Stem simple and leafless below, branched and leafy above. Basal leaves petiolate, ternate; leaflets 3-fid; segments ovate, more or less 3-lobed. Cauline leaves similar to basal but sessile, with conspicuous stipules. Flowers 10-20 mm in diameter. Perianth-segments white. Honey-leaves 1-1-5 mm. Follicles usually 2, broadly ovate, compressed. 2zj= 14. C. Europe, extending to the Pyrenees, C. Italy, Bulgaria and C. Ukraine. Au Bu Cz G a He Hs H u It Ju Po Rm Rs (C, W).