1、 Blade difference

The basal leaves of viola viola are heart-shaped or wide heart-shaped, the petiole is about 8 cm, there are dense brown gland spots on both sides, the stem leaves are triangular heart-shaped or narrow ovate heart-shaped, the petiole is short, and the stipules are brown and narrow lanceolate. The leaves of viola viola are basal, long ovate or wide ovate, the petiole is thin and weak, 2 / 3 of the stipules are connate with the petiole, and the free part is linear lanceolate or lanceolate

2、 The difference between flowers

The flower color of viola viola is lavender, and the petals are oval oblong with brown gland spots. The flower color of viola viola is purple, and the petals are obovate