Senecio bicolor, (Willd.) Tod.

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 : 194

4. S. bicolor (Willd.) Tod. , Ind. Sem. Horti Panorm. 1859: 30 (1860).

Dwarf shrub 25-50(-l00) cm. Stems much-branched at the base and sometimes also above, stout, densely white-tomentose, with the leaves mostly crowded towards the base of the flowering stems and forming rosettes on the non-flowering shoots. Leaves 4-15 x 2-5-7 cm, ovate to lanceolate, dentate to pinnate, densely whitish-tomentose beneath, more or less arachnoidtomentose, greenish and glabrescent above. Capitula many, 12-15 mm in diameter, in dense, compound corymbs. Involucre 5-8 mm, with up to 5 supplementary bracts 1-2 mm. Ligules 10-13, 3-6 mm, yellow. Rocky and sandy places. Mediterranean region; locally naturalized elsewhere. Co Ga Gr Hs It Ju Sa Si [Bl Br Hb Lu Rs (K)].

1 Leaves ovate-lanceolate, lyrate-pinnatifid to irregularly sinuate-dentate; involucre subglabrous, or whitish-tomentose and more or less glabrescent (b) subsp. nebrodensis

1 Leaves pinnate, pinnatisect, or lyrate-pinnate or -pinnatisect; involucre densely and usually persistently whitish-tomentose

2 Leaves ovate, often lyrate, with the ultimate lobes usually as wide as long and obtuse; peduncles long (a) subsp. bicolor

2 Leaves ovate or ovate-lanceolate, not lyrate, with the ultimate lobes usually longer than wide and subacute; peduncles short (c) subsp. cineraria