The basic leaves of Viola yedoensis are heart-shaped or broad heart-shaped, the petioles are about 8 cm, there are dense brown gland spots on both sides, the stem leaves are triangular heart-shaped or narrow egg heart-shaped, the petioles are short, the stipules are brown, and they are narrow lanceolate. The leaves of Viola tenuifolia are basal, long or wide ovate, petioles are thin and weak, stipules are 2 /3 united with petioles, and the free parts are linear lanceolate or lanceolate.
The flower color of Viola yedoensis is lavender, the petals are oblong and oval, with brown gland spots. The color of Viola is violet and the petals are obovate.
