They are mostly annual, rarely perennial herbaceous plants that can grow upright, lying or climbing. The Fumarioideae have no milky sap. The sessile leaves are compound.
The racemose inflorescences are short. On the side of the zygomorphic flowers there are two small, soon-to-be-falling ("decrepit") sepals. The crown is made up of four differently shaped petals in two circles. In the Fumaria species, the upper outer petal is sack-shaped towards the back, so that a sack-shaped spur is formed. The flowers are usually reddish to purple in color. A good feature to distinguish it from Corydalis is that the flower tip is always a little darker in color. There are usually only two stamens present.
This plant is useful.
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