R. D. Meikle, Flora of Cyprus 2. 1985T. G. Tutin, N. A. Burges, A. O. Chater, J. R. Edmondson, V. H. Heywood, D. M. Moore, D. H. Valentine, S. M. Walters & D. A. Webb, Flora Europaea 1, ed. 2. 1993
but modified
1Perennial plant with woody rootstock, sometimes even like a subshrub
1'Annual plant
2Inflorescences leafy, the flowers in small axillary clusters; leaves coriaceous
2'Inflorescences spiciform, terminal, slender, not leafy; leaves not coriaceous
3Inflorescences leafy; flowers solitary, axillary, or in small axillary clusters; bracts leaf-like, longer than the flowers
3'Inflorescences not leafy, spiciform; at least the upper bracts inconspicuous and shorter than the flowers
4Perianth pink and white
4'Perianth green, sometimes with pink or white margins