Sideritis endressii subsp. laxespicata, (Degen & Debeaux) Heywood

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 : 140

(b) Subsp. laxespicata (Degen & Debeaux) Heywood , Bot. Jour. Linn. Soc. 65: 355 (1972)

( S. endressii f. laxespicata Degen & Debeaux ):

Leaves up to 35 x 20 mm. Bracts up to 20 x 35 mm. Calyx 13-17 mm. Corolla 18-20 mm. S.E. Spain (provs. Jaén and Albacete).

Other variants from N.E. & S. Spain have usually distant verticillasters, larger and wider bracts, and variable indumentum (often densely hirsute or greenish and sparsely hairy); some of them are low-growing and coastal and may represent a further subspecies.