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Herbs, annual, biennial, or perennial, soft, juicy, usually glabrous. Leaves usually alternate, pinnately or ternately divided. Inflorescence a simple bracteate raceme (compound with cymose or racemose partial inflorescences in some species of Corydalis sect. Strictae). Flowers blue, purple, orange, yellow, or white. Sepals petaloid, usually dentate. Corolla zygomorphic; upper petal spurred. Stamens 2 (i.e., filaments of each triplet completely fused); median upper stamen with a nectariferous appendage at base frequently fused to spur for a shorter or longer portion. Stigma variable. Fruit a usually many-seeded capsule with persistent style. Seeds black, with whitish elaiosomes (except in C. sect. Bipapillatae).
Glabrous herbs. Lvs 2-3-pinnate, very rarely simple, usually ± glaucous. Only the upper petal spurred; fls yellow, white, reddish, pink, greenish or purplish. Ovules numerous. Fr. a 2-valved pod-like capsule with 2-many seeds.
