Inula verbascifolia

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 : 136

14. I. verbascifolia (Willd.) Hausskn. , Mitt. Thür. Bot. Ver. nov. ser., 7: 32 (1895)

( I. candida subsp. verbascifolia (Willd.) Hayek ).

Like 13 but stems up to 50 cm; indumentum lanate, not sericeous, often rather sparse; basal leaves usually ovate-lanceolate and shortly cuneate at base, often acute, crenate-serrate to entire; veins usually prominent beneath; involucre 7-12 mm; ligules shorter or longer than involucre. Balkan peninsula and S.E. Italy. Al Bu Cr Gr It Ju.

1 Ligules exceeding involucre by 2 mm or more

2 Involucre (8-) 10-12 mm (a) subsp. verbascifolia 2 Involucre 7-10 mm

3 Outer involucral bracts not more than 1 as long as inner

(b) subsp. aschersoniana 3 Outer involucral bracts at least Ì as long as inner

(c) subsp. parnassica 1 Ligules shorter to slightly longer than involucre

4 Outer involucral bracts less than | as long as inner; most capitula subtended by 0-2 bracts (d) subsp. methanea 4 Outer involucral bracts at least i as long as inner; most capitula subtended by 2 or more bracts

5 Ligules slightly exceeding involucre (c) subsp. parnassica 5 Ligules shorter than involucre (e) subsp. heterolepis