Viola langsdorffii Fischer ex Ging. [ Viola kamtschadalorum W. Becker & Hult.]
no HD illustration available (m1)
Viola langsdorffii Fischer ex Ging. [Violaceae]
V.L. Komarov (Komorov), Fl. URSS, vol. 15 : p. 435, t. 21, fig. 1 (1934-1964)