Marrubium peregrinimi, 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 : 138

9. M. peregrinimi L. , Sp. Pl. 582 (1753).

Stems up to 60 cm, shortly whitish or yellowish appressed-tomentose, with patent branches from most axils. Leaves oblong or obovate, cuneate at base, crenate-serrate, whitish-tomentose above, more densely so beneath; petiole shorter than lamina. Verticillasters up to 10-flowered, distant, or the uppermost on the lateral branches rather crowded. Bracteoles short, subulate, or minute. Calyxtube 3-5-5 mm, 10-ribbed, appressed-tomentose; teeth 5, 1-5- 3 mm, lanceolate-subulate, erect or becoming patent. Corolla exceeding the calyx-teeth, white. 2/z = 34. Dry, open habitats. S.E. & E.C. Europe, northwards to c. 48° 30' N.; naturalized or casual elsewhere. Al Au Bu Cz G r Hu Ju Rm Rs (W, K, E) Tu [Ga Ge It Po]. M. x paniculatum Desr. in Lam., Encycl. Méth. Bot. 3: 716 (1792) ( M. remotum Kit. ) is 9 x 10. It is like 9 but has less regular branching, wider elliptical leaves, (5—)8—10 unequal, often slightly hamate calyx-teeth and, frequently, more flowers in the verticillasters. It has been recorded from stony and waste places in C. Europe and the Balkan peninsula.