Viola disjuncta W.Becker [ Viola atroviolacea W. Becker]
no HD illustration available (m1)
Viola disjuncta W.Becker [Violaceae]
V.L. Komarov (Komorov), Fl. URSS, vol. 15 : p. 463, t. 22, fig. 2 (1934-1964)