Low Risk, Low Eradication Impedence, Low Net Area. (Department of Agriculture (2014). Biosecurity Workshops Report. Department of Agriculture); Casual Taxa - Have Not Been Observed To Reproduce Unaided And Including Those Classed As Either Casual Or Casual And Persisting [This Species Has] Rarely Been Recorded Growing From Spilt, Imported Chicken-Feed, But Have Not Been Observed To Reproduce. (Creation of a Risk Assessment Protocol for Cultivated Species in the Falkland Islands and Volunteer invasive plant recording sheet (Unknown).); Very rare; Recorded on East Falkland (Stanley), Pebble Island and Weddell Island. Casual. Probably 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); Casual, rare. Falkland islands wide. Probably locally extirpated. ([Heller, 2019] Falklands Conservation Flora and Fauna List (Unknown));
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))