Aetheorhiza bulbosa, (L.) Cass.

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 : 326

1. A. bulbosa (L.) Cass. , Diet. Sci. Nat. 48: 426 (1827)

( Crépis bulbosa (L.) Tausch ).

Glaucous perennial 7-55 cm, with leafy stolons and long rhizomes. Stems 1-3, each with l (-8) capitula. Leaves usually glabrous; basal 10-250 x 4-35 mm, elliptical to obovate, mostly acute, gradually attenuate to the petiole, entire to sinuately lobed; cauline usually absent, but sometimes 1-2 near the base of the stem. Involucre 8-16 x 3-12 mm; bracts lanceolate, usually subobtuse, with blackish, davate glandular hairs at the base and extending on to the stem. Achenes 3-5 x c. 0*5 mm, more or less attenuate at apex, with hollow, swollen base. 2л = 18. Cultivated fields, maritime sands and dry, rocky ground. Mediterranean region and W. coast of Europe, northwards to 47° 45' in N. W. France. Al BI Co Cr Ga Gr Hs It Ju Lu Sa Si Tu.

1 Involucre 8-11 mm (b) subsp. microcephala 1 Involucre 13-16 mm

2 Involucral bracts linear-lanceolate, c. 2 mm wide; achenes

4-4*5 mm (a) subsp. bulbosa 2 Involucral bracts narrowly linear, 1-1*8 mm wide; achenes

c. 5 mm (c) subsp. willkommii