Hedge Mustard - Sisymbrium officinale

    Description

    Medium to tall plant with spreading branches. Lower leaves deeply pinnately lobed, with a large terminal lobe. Flowers pale yellow, small 3 mm. Fruits short 10 to 20 mm closely pressed to the stem.

    Identification difficulty
    ID guidance

    Seed-pods long, without beak, splitting into 2 valves with one row of seeds in each valve; appressed to stem (i.e folded up to lie alongside stem)

    Habitat

    Waste places, roadsides, occasionally on arable land.

    When to see it

    May to September.

    Life History

    Annual or biennial.

    UK Status

    Fairly common throughout much of Britain though scarcer in central and northern Scotland.

    VC55 Status

    Common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 474 of the 617 tetrads.

    In the current Checklist (Jeeves, 2011) it is listed as Alien (archaeophyte), frequent

    Leicestershire & Rutland Map

    UK Map