Sideritis incana, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 142

19. S. incana L. , Sp. Pl. ed. 2, 802 (1763).

Glabrous to white-tomentose perennial up to 60 cm. Leaves up to 1540 x 1 -5- 4(-7- 5) mm, linear to ovate-lanceolate or spathulate, entire or with few small teeth. Verticillasters (1—)2—10, c. 6-flowered, distant. Lower bracts 3-10 x 2-8 mm, shorter than calyx, ovate to cordate-ovate, entire or with up to 11 teeth. Calyx 4-8 mm, without a ring of hairs inside. Corolla 8-10 mm, yellow or pink. Dry places. C., E. & S. Spain. Hs.

1 Plant glabrous or sparsely tomentose

2 Corollayellow; lower bracts4 -10 mm, toothed(a) subsp.incana 2 Corolla pink; lower bracts 3 4 mm, entire or feebly toothed

(d) subsp. glauca 1 Plant densely white-tomentose

3 Corolla yellow (b) subsp. virgata 3 Corollapink (c) subsp. sericea