Sisymbrium orientale L.
Sisymbrium columnae Jacq.
eastern rocket, hedge mustard, Indian hedge mustard, Indian hedge-mustard, mustard, oriental hedge mustard, oriental mustard, wild mustard
Brassicaceae (Queensland, New South Wales, the ACT, Victoria, Tasmania, Western Australia and the Northern Territory)Cruciferae (South Australia)
The exact origin of this species is obscure, but it is thought to be native to northern Africa (i.e. Algeria, Libya, Morocco and Tunisia), the Madeira Islands, the Canary Islands, Europe (i.e. France, Spain, Albania, Bulgaria, Greece, Yugoslavia and southern Ukraine), western Asia (i.e. Afghanistan, Cyprus, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey, Bahrain, Kuwait, Qatar, Saudi Arabia, Yemen, Georgia and Turkmenistan) and the Indian Sub-continent (i.e. northern India and Pakistan).
Widely naturalised in southern, central and eastern Australia (i.e. in southern eastern Queensland, New South Wales, the ACT, Victoria, Tasmania, South Australia, the southern and central parts of Western Australia, and many parts of the Northern Territory). Also naturalised on Norfolk Island.
Indian hedge mustard (Sisymbrium orientale) is a common weed of crops, pastures, rangelands, open woodlands, coastal environs, roadsides, disturbed sites and waste areas in the southern two-thirds of the country. It is regarded as an environmental weed in Western Australia and Victoria.