Barbarea verna is a biennial or short-lived perennial peppery tasting herb to 80 cm tall, stems simple or branched above.
Leaves alternate, basal leaves to 20 cm long, pinnately divided, blade roughly egg-shaped, lateral lobes 4-10 pairs, terminal segment largest, margin broadly toothed, stem leaves smaller, lobes narrow, margins entire.
Flowers bright yellow, 4-parted, petals to 0.8 cm long, March-May.
Fruit dry, capsules ascending, 5-7 cm long, slightly flattened, on a stalk to 0.7 cm long, ca 0.2 cm wide, almost a wide as the capsule, seeds ca 0.1 cm.
Wetland status: UPL.
Frequency in NYC: Very infrequent.
Habitat: Moist, open soil.
Notes: Agricultural weed with peppery taste. Barbarea species are host to the larvae of the falcate orangetip butterfly, Anthocharis midea (Pieridae).