Barbarea vulgaris R.Br.
winter cress
Glabrous biennial to perennial. Stems branched above, 30-60-(100) cm tall. Rosette lvs lyrate-pinnate, (5)-10-20-(25) × 1-3-(4) mm; terminal lobe rounded-oblong; lateral lobes in (0)-1-3-(5) pairs, the distal pair > width of terminal lobe; margins toothed or sinuate. Upper stem lvs becoming simple, obovate or ovate, coarsely toothed. Racemes to 30 cm tall; pedicels erecto-patent to ± patent, 4-7 mm long. Sepals glabrous, 3-4 × 1-1.5 mm. Petals 5-6 × 1.5-2 mm. Silique erect, (15)-20-(30) × 1-1.5 mm; style 2-3 mm long.
N.: Auckland, Rotorua; S.: Marlborough (Kaikoura), Canterbury, Westland, Otago, Southland.
Eurasia, N.W. Africa 1870
Rather rare and local on waste land and pasture, especially in wet soils.