Centaurea grisebachii, (Nyman) Form.

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 : 274

95. C. grisebachii (Nyman) Form. , Verb. Naturf. Ver. Brünn 34: 300 (1896).

Perennial, rarely biennial. Stems up to 50 cm, erect, paniculately branched. Leaves scabrid and with arachnoid indumentum or appressed-pubescent, grey-green; lower pinnatisect with narrowly oblong to linear segments. Capitula usually in clusters. Involucre 10—11 (—14) x 5-7 mm; appendages dark brown, acute, with 4-6 fimbriae 1 -5 mm on each side, auriculate. Florets purple. Achenes puberulent; pappus |-4 as long as achene. Stony slopes. • S. part of Balkan peninsula. Al Gr Ju.

1 Lower leaves with more than 5 pairs of segments; involucre

6-7 mm in diameter (a) subsp. grisebachii 1 Lower leaves with 3-5 pairs of segments; involucre 5-6 mm in

diameter

2Stems 30-50cm, branched above; involucral appendages with narrow auricles (b) subsp. confusa

2Stems not more than 20 cm, branched at base; involucral appendages with wide auricles (c) subsp. paueijuga