Corydalis is usually terminal or axillary and stem, with 2-3 flowers, and tricolor is mainly single axillary.
The flower tube of Corydalis vulgaris is funnel-shaped, with a labiate corolla, and the calyx is swollen. There are 5 ribbed wings on the calyx tube. The calyx of Viola tricolor is 5-lobed, but the calyx surface is flat and darker.
Generally speaking, corydalis is like a pig's ear in color, and Corydalis is more like a butterfly dancing.
The biggest difference between corydalis and pansy is the color. The flowers of Corydalis are rich in color, but for a single flower, the flowers of Corydalis are more colorful.
The colors of Corydalis are violet, peach, pink, dark blue, light blue, deep rose, blue purple, deep peach and purple, but almost every flower is based on white, petals are other colors, and throat is a little yellow. And pansy is different, usually each flower has purple, white, yellow three colors. The upper petals are often of a single color, while the lower petals are of three colors, with colored stripes.
The leaves of corydalis and Viola tricolor are similar, opposite, ovate or ovate lanceolate, with serrated edges. But they can still see the subtle differences. For example, the leaves of Pansy are mellow, while the leaves of summer pansy are relatively sharp.
The growth habits of corydalis and Viola tricolor are different. Corydalis like the high temperature environment is not cold resistant, while pansy tricolor is just the opposite, more cold resistant, like cool. And the florescence of the two is also different. The Corydalis blooms in summer and autumn, while the pansy blooms from winter to spring. At this point, the two are well distinguished. The Corydalis blooms in summer and autumn, and the pansy blooms in winter and spring.
