Low Risk, High Eradication Impedence, Low Net Area. (Department of Agriculture (2014). Biosecurity Workshops Report. Department of Agriculture); Naturalised. Very rare. Recorded on East Falkland (Stanley - last recorded 1937-1938). Possibly locally extirpated. All plants controlled (R. Lewis 2013). Not cultivated. (Upson R. & Lewis R. (2014). Updated atlas and checklist. Report to Falklands Conservation. 225 pp); Historial, very rare. Found to the east of the island. Probably extirpated. ([Heller, 2019] Falklands Conservation Flora and Fauna List (Unknown));
Native to Euro Siberian Southern-temperate areas but extensively naturalised beyond this range. (Resource ID 119 - UPDATED VASCULAR PLANT CHECKLIST AND ATLAS FOR THE FALKLAND ISLANDS - lewis2014);
Blake D., Stanworth A., Wong L, Pagad S. (2020). Global Register of Introduced and Invasive Species of Falkland Islands (Islas Malvinas). Version 1.2. Invasive Species Specialist Group ISSG.; Department of Agriculture (2014). Biosecurity Workshops Report. Department of Agriculture.pdf; Creation of a Risk Assessment Protocol for Cultivated Species in the Falkland Islands and Volunteer invasive plant recording sheet (Unknown).; Upson R. & Lewis R. (2014). Updated atlas and checklist. Report to Falklands Conservation. 225 pp; ([Heller, 2019] Falklands Conservation Flora and Fauna List (Unknown))