R. D. Meikle, Flora of Cyprus 2. 1985
but modified
1Calyx infundibuliform, almost actinomorphic, margin with 5 minute apiculi: corolla white, adaxial lip purplish; style c. 15 mm long
1'Calyx distinctly 2-lipped, the adaxial lip of one broad, porrect spine, the abaxial lip boardered with 7 slender, spreading spines; corolla white; style c. 25 mm long