Solanum cornutum, Lam.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 199

14. S. cornutum Lam. , Tabi. Encycl. Méth. Bot. 2: 25 (1794).

Annual with dense tomentum of stipitate stellate and simple

hairs intermixed with patent to recurved yellow prickles up to 1 cm; stem 30-60 cm, much-branched, sometimes woody at base. Leaves 6-12 x 4-8 cm, deeply pinnately lobed; lobes obovate to orbicular, sinuate; petiole 1-5 cm. Cymes 3- to 10-flowered, solitary, extra-axillary; peduncles 30-60 mm. Calyx 10 mm; lobes c. 5 mm, unequal, lanceolate, accrescent; tube with dense prickles, accrescent to enclose berry. Corolla 20-40 mm in diameter, somewhat zygomorphic, appearing 10-lobed by expansion of interpetalar membranes, yellow. Upper 4 anthers c. 4-6 mm, equal, yellow, the other c. 8-12 mm, purplish distally. Berry c. 10 mm in diameter, globose, dry. Cultivated ground and waste places. Locally naturalized, mainly in E.C. & E. Europe. [Bu Ga Ge Gr Hu Rs (C, W, K, E).] (Mexico, S. W. United States.)

S. heterodoxum Dunal , Hist. Solanum 235 (1813), and S. citrullifolium A. Braun, Ann. Sci. Nat. ser. 3 (Bot.), 12: 356 (1849), from Mexico, which can be distinguished from 14 by their purple corolla, are perhaps naturalized in parts ofS. Europe.