Corydalis leaves alternate, lanceolate or ovate, margin serrate or divided, stipules smaller, leaflike.
The basal leaves of Viola tricolor are long ovate or lanceolate, the stem leaves are ovate, long round or long round lanceolate, and the apex is round or blunt. Stipules large and leaflike.
The flower diameter of Corydalis is 2.5-4cm, the flower color is very rich, the petals have red, white, yellow, purple, blue and other lighter colors, there is no dot in the middle of the flower, only a black straight line, the overall flower shape is longer.
The flowers of Pansy are larger than Corydalis, sometimes 2-3 times the size of the former, with a diameter of 3.5-6cm. Usually there are three kinds of colors, purple, white and yellow. There is a black spot in the middle of the flowers, like a grimace, while the former is not, the color is deeper, and the overall shape of the flowers is more round.
