Of Corydalis and Water dropwort, which one grows in higher altitudes?
Corydalis: Corydalis (Greek "korydalís" "crested lark") is a genus of about 470 species of annual and perennial herbaceous plants in the Papaveraceae family, native to the temperate Northern Hemisphere and the high mountains of tropical eastern Africa. Water dropwort:  Most of the species grow in damp ground, in marshes or in water.
Corydalis