Matricaria maritima, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 166

4. M. maritima L. , Sp.T’Z.891 (1753)

(Г. maritimum (L.) Koch ).

Biennial to perennial. Stems 10-80 cm, procumbent, ascending or erect, usually corymbosely branched above. Stems and leaves glabrous or with a few scattered hairs. Leaf-segments usually relatively short and fleshy, obtuse or shortly mucronate. Capitula (3-)10-50, 3-5 cm in diameter. Achenes l-8-3-5x 1-2 mm; ribs inflated and more or less contiguous, pale to dark blackishbrown; 1-2 supernumerary ribs often present; resin-glands large and longitudinally elongated; abaxial face blackish-brown and transversely rugose; pappus truncate, short. Open habitats, usually near the sea. Coasts of W. & N. Europe. Be Br Da Fa Fe Ga Ge Hb Hs Is Lu No Po Rs (N, B) Sb Su. Variable in size, habit and characters of leaf and involucre. 1 Ligules 1-8-2 cm; involucral bracts oblong, all±equal in length, with a pale to medium brown scarious margin at least 0-5 mm wide (b) subsp. subpolaris 1 Ligules 1-1-6 cm; outer involucral bracts much shorter than inner

2 Involucral bracts broadly triangular, with a blackish-brown scarious margin 0-4-1 mm wide (c) subsp. phaeocephala 2 Involucral bracts oblong or narrowly triangular, with a pale or dark brown scarious margin not more than 0-3 mm wide

(a) subsp. maritima