Anthemis rigida, (Sibth. & Sm.) Boiss. & Heldr.

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 : 154

34. A. rigida (Sibth. & Sm.) Boiss. & Heldr. in Heldr., Sched. Herb. Graec. Norm. 1856: no. 1503 (1857)

( A. eretica (L.) Nyman, non L.).

More or less hairy annual. Stems thick, finally rigid, up to 13(—15) cm, usually numerous and simple. Leaves oblong, 1 - to 2-pinnatifid; lobes lanceolate, linear-spathulate to oblong-cuneate, acute or obtuse. Peduncles somewhat thickened and frequently arcuate, the 1-2 central ones very short, scape-like. Involucre usually obconical; bracts triangular-lanceolate, subequal, indurate-thickened at the base, more or less hairy, without or the inner with a narrow scarious margin. Ligules rarely present. Disc 3-9 mm in diameter; tubular florets yellow, rarely whitish suffused with pink, not swollen below. Receptacle 1-3-5 x 3-3-5 mm, shortly conical; scales lanceolate to obovate-cuneate, mucronate, shortly acuminate. Achenes 1 -25-1 -5 mm (excl. auricle), obconical, not or obscurely ribbed, with an auricle up to 0- 5 mm, or sometimes an acute rim. Maritime sands and other dry places. Aegean region. Cr Gr Tu.

Plants from Sicilia referred to this species belong to a variant of 36 without ligules. Perhaps A. asperula Bertol. , FI. Ital. 9: 368 (1854), an obscure species described from Corse, might also be ascribed to the Sicilian variant.