Parentucellia Viv.

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 : 269

32. Parentucellia Viv. 1

Like Bartsia but annual; corolla with the lower lip longer than the upper; seeds c. 0-5 mm, numerous, smooth or finely reticulate; hilum basal.

Calyx-teeth nearly as long as tube; corolla yellow or white,

caducous 1. viscosa Calyx-teeth about half as long as tube; corolla reddish-purple

(rarely white), persistent 2. latifolia