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Family: Brassicaceae Scientific name: Sisymbrium officinale Description: Plant Form: Annual or biennial herb. Size: Up to 90 cm tall. Stem: Erect, rough, covered with stiff hairs. Leaves: Up to 10 cm long at base, smaller above. With 3-5 pairs of toothed lobes. Rough, covered in stiff hairs. Flowers: Typical mustard family flowers, pale yellow with 4 petals. Without supporting bracts. Small and in stalked clusters towards top. Fruit and Seeds: Elongated cone-shaped pods 1-2 cm long. Without a beak. Held close to stem. With several seeds about 1.5 mm across. Habitat: Cropping areas, roadsides, disturbed areas, waste areas. Distinguishing Features: Distinguished from London rocket (Sisymbrium irio) by not having curved fruit, and from Wild mustard (S. orientale) by having shorter fruit which clasp to the stem. Weed Status: Other Weed Weed Type: Environmental, Agricultural, Invasive Garden Escapee Lifeform: Herbaceous
