Aldrovanda vesiculosa, 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 : 350

1. A. vesiculosa L. , Sp. PI. 281 (1753) .

Leaves 10-15 mm, in crowded whorls of 6—9; each with a cuneate basal part, and terminating in 4-6 setaceous segments and an orbicular lobe, hinged along the midrib, which can close rapidly to entrap and digest small animals. Flowers shortly pedicellate, rarely produced in Europe and usually cleistogamous; petals 4-5 mm, greenishwhite. Perennation by persistent terminal buds. Usually in shallow, still water. Dispersed irregularly and sparsely over a large part o f Europe, mainly in the centre and east.?Au Bu G a Ge *He Hu It Ju Po Rm Rs (C, W, E).