Lavandula stoechas, 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 : 187

1. L. stoechas L. , Sp. Pl. 573 (1753).

Shrub up to 100 cm, tomentose. Leaves 10-40 mm, linear to oblong-lanceolate, entire, usually grey-tomentose. Spike usually 2-3 cm; fertile bracts 4-8 mm, rhombic-cordate, tomentose; upper bracts 10-50 mm, oblong-obovate, usually purple, without flowers in their axils; verticillasters 6- to 10-flowered. Calyx 4-6 mm, 13-veined, the upper tooth with an obcordate appendage at the apex 1-1-5 mm wide. Corolla 6-8 mm, usually dark purple. 2« = 30. Mediterranean region, Portugal. BI Co Cr Ga G r Hs It Lu Sa Si Tu.

1 Peduncle shorter than spike (a) subsp. stoechas 1 Peduncle longer than spike 2 Calyx-appendage lobed (f) subsp. cariensis 2 Calyx-appendage entire or nearly so 3 Lower bracts exceeding the calyx, contiguous (b) subsp. pcdunculata 3 Lower bracts not exceeding the calyx, not contiguous 4 Spike not more than twice as long as wide (c) subsp. lusitanica 4 Spike more than twice as long as wide 5 Lower bracts shorter than calyx, ± acute (d) subsp. luisieri 5 Lower bracts ± equalling the calyx, acute or obtuse, linear-elliptical (e) subsp. sampaiana