Scientific name: Sisymbrium officinale (L.) Scop.
Common name: Hedge Mustard
Description
Habit: Annual, to 80 cm high.
Stems: Erect or spreading, tough, often hairy near the base.
Leaves: Deeply lobed, alternate, irregularly toothed; basal leaves with a broad terminal lobe and 1-4 pairs of lateral lobes; stem leaves smaller, with fewer segments.
Flowers: Yellow, 4 mm across, actinomorphic, in racemes; sepals 4, free; petals 4, free; ovary superior.
Fruits: A silique, 1-2 cm long, erect, appressed to the stem, hairy when mature, in a long slender raceme.
Habitat: Roadsides, waste ground, cultivated fields.
Distribution: Occasional throughout.
Native status: Not native; naturalised
Of conservation interest: No