Corydalis cheilanthifolia - a new casual alien plant in the Czech Republic and the history of its introduction to Europe

Corydalis cheilanthifolia, a species native to China, was recorded as a new alien near an old millrace in a floodplain forest in Břeclav, southern Moravia. The plants have escaped from cultivation, although the species is rather rare in gardens. It is the first record of the escape of this species in Central Europe. The species is easy to recognize due to acaulescent habit with fern-like leaves, rather upcurved yellow flowers, and linear capsules, and it is therefore unlikely to be confused with native species of the genus.