Lamium orvala, 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 : 147

1. L. orvala L. , Syst. Nat. ed. 10, 2: 1099 (1759).

Glabrous or sparsely hairy perennial 40-100 cm. Leaves 40-150x 30- 90(-120) mm, triangular-ovate, coarsely and irregularly toothed. Calyx 12-20 mm, the teeth shorter than to longer than tube.

Corolla 25-45 mm, pink to dark purple, rarely white; tube 15-20 mm, straight, longer than calyx; upper lip 15-20 mm, irregularly toothed, the lateral lobes short, triangular; lower lip 15-20 mm, irregularly toothed. Anthers glabrous. • From N. Italy and W. Austria to W. Jugoslavia and S. Hungary. Au Hu It Ju?Rs (W).