Brassica elongata is a biennial to perennial herbaceous plant in the mustard family. It has erect branching stems and grows up to 3.3 ft. (1 m) tall. B. elongata is native to northern Africa, temperate Asia and middle, eastern and southeastern Europe.
Foliage
B. elongata has a rosette of leaves that are toothed to pinnately lobed. Leaves become smaller and sparser as they rise up the stem.
Flowers
The small bright yellow to orange-yellow flowers have obovate shaped petals.
Fruit
The fruits have a stalk like base and a seedless narrow beak. The fruits are from 0.4-1.6 in. (1-4 cm) long. The seeds are grey to brown with a reticulate coat.
Ecological Threat
B. elongata invades disturbed habitat such as roadsides and competes with native vegetation for resources. It can tolerate a wide range of habitats and produces abundant seeds which gives it a competitive advantage. B. elongata has naturalized in southern Africa, Australia, North America and countries in Europe where it is not native.