Flowers in racemes, often branched. Sepals to c. 3 mm long. Petals yellow.
Siliqua linear, 4-angled, beakless; valves with midvein distinct to apex; seeds in 1 row per loculus.
| | Key to the species | |
| 1 | Upper stem leaves pinnatifid with linear lobes; pedicel curved, spreading, stout, more than half as broad as siliqua; seeds rounded, not marginate | Barbarea verna |
| Upper stem leaves simple and more or less toothed or lyrate-pinnatisect with 1 pair of lobes; pedicel erect to spreading, less than half as broad as siliqua; seeds with a narrow warty wing | Barbarea grayi |
