Common Names: Bittercress, common winter cress, herb barbara, rocketcress, yellow rocketcress, winter rocket, wound rocket
Sub-category: Mustard family
Grows to about 30 to 60 cm high, with a maximum of 1 m. The stem is ribbed and hairless, branched at the base. It has a basal rosettes of shiny, dark green leaves. The basal leaves are stalked and lyre-pinnatifid, that is with a large terminal lobe and smaller lower lobes. The cauline leaves are smaller, ovate, toothed, or lobed. The flowers are produced in dense terminal clusters above the foliage. They are 7 to 9 mm long, with four bright yellow petals. The fruit is a pod around 15 to 30 mm.
Found along roadsides, along rivers, on slopes, waste areas, meadows, and in ditches. The flowering period extends from about April through July.
Primary Flower Color: Yellow
Secondary Flower Color: Yellow