Meikle, R.D., Flora of Cyprus 1. 1977Tutin, T.G., Burges, N.A., Chater, A.O., Edmondson, J.R., Heywood, V.H., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A., Flora Europaea 1, ed. 2. 1993
but modified
1Leaves up to 3 mm wide, linear; petals 3-4 mm long
1'Leaves more than 3 mm wide, lanceolate; petals 7-8 mm long