1、 Plant type difference

The general height of Pansy is 10-40cm. Its stem is relatively thick, or upright growth, or slightly inclined growth, with a single edge. The height of Corydalis is generally 10-30cm, and its stem is relatively short, but it grows upright and has four edges

2、 Blade difference

The leaf blade of Viola triangularis is oval, the front end and base are relatively round and blunt, there are sparse serrations at the leaf edge, and the stipules are relatively large. The leaf blade of Corydalis is lanceolate or oval, and the stipule is relatively small

3、 The difference between flowers

The flowers of Corydalis are relatively large, with a diameter of about 3.5-6cm. Generally, 3-10 small flowers are born on the same rhizome. The flower of Corydalis is relatively small, with a diameter of about 2.5-4cm