Aristolochia clematitis, 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 : 74

6. A. clematitis L. , Sp. Pl. 962 (1753).

Subsimple, glabrous, up to 100 cm; stock creeping, much divided. Leaves 3-15 cm, broadly ovate, obtuse; petiole 1-5-5 cm. Flowers 2-3 cm, 2-8 together in the axils of the leaves, yellow, the limb brownish; pedicels very short. Capsule 2-5 cm, ovoid to pyriform. Formerly cultivated as a medicinal herb throughout most o f Europe and widely naturalized from c. 55° N. southwards; probably native in the east and south-east. Al Au Be?B1 Br Bu Co Cr Cz G a Ge G r He Ho Hs H u It Ju Lu Po Rm Rs (B, C, W, K, E) Tu.