Meikle, R.D. 1985: Flora of Cyprus 2
but supplemented
1Corolla 15-25 mm long, yellow; inflorescence to 25 cm or longer in fruit; plant 16-50 cm high
1'Corolla 10-12 mm long, purple, white or pale yellow; inflorescence seldom more than 8 cm long, even in fruit; plant (3-)5-20(-27)cm high
2Corolla purple-and/or white
2'Corolla pale yellow