American Winter-cress - Barbarea verna

    Description

    Short to tall hairy plant. Basal leaves with 6 to 10 pairs of lateral lobes, uppermost leaves pinnately divided several times. Flowers mid yellow, 7 to 10 mm not forming such dense heads as B.vulgaris. Fruit long 3 to 7 cm.

    Similar Species

    other Barbarea; other yellow crucifers

    Identification difficulty
    ID guidance

    Basal leaves pinnate; seed-pods appressed (folded up against stem); upper leaves pinnate or pinnately lobed > halfway to midrib; at least some fruits >4mm.

    Recording advice

    General photo of plant in habitat; details of basal and stem leaves.

    Habitat

    Damp habitats, waste places, disturbed and cultivated ground.

    When to see it

    April to July.

    Life History

    Biennial.

    UK Status

    Found throughout much of Britain, though not common.

    VC55 Status

    Occasional in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 9 of the 617 tetrads.

    In the current Checklist (Jeeves, 2011) it is listed as Alien (casual); scarce

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map