Datura stramonium, L.

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 : 200

1. D. stramonium L. , Sp. Pl. 179 (1753)

( D. tatula L. ).

Plant 50-200 cm, glabrous to puberulent. Leaves 5-18(-21)x4- 15 cm, ovate to elliptical, acute, cuneate to subcordate at base, sinuate-dentate to -lobed. Calyx 30-50 mm, angled; teeth (3—)5—10 mm, unequal. Corolla 5-10 cm, infundibuliform, white or purple. Capsule (2-5-)3-5-7 x (2-)3-5 cm, ovoid, erect, dehiscing regularly, densely covered with more or less equal, rather slender spines up to 15 mm, rarely smooth. 2« = 24. Cultivated ground, waste places and other open habitats. Naturalized in most o f Europe except the extreme north, but in some regions very irregular in its appearances. [All except BI Fa Fe Hb Is Rs (N) Sb.] (America.)