Extinct. Was found on Cadiz coast in very humid areas. (Horizon scanning draft for Gibraltar version 0.3 (Unknown).); Very rare. (Species that have been introduced into Gibraltar. (Unknown).); Very Rare. Endangered. Casual. (Gibraltar flora database (Unknown));
Invasive (European Commission (2005) Especies vegetales invasoras en Andulasia. La Consejería de Medio Ambiente, Junta de Andalucía);
Not a problem. (Species that have been introduced into Gibraltar. (Unknown).);
Introduced from North America. (Species that have been introduced into Gibraltar. (Unknown).);
Species that have been introduced into Gibraltar. (Unknown).; Gibraltar flora database (Unknown); Horizon scanning draft for Gibraltar version 0.3 (Unknown).; European Commission (2005) Especies vegetales invasoras en Andulasia. La Consejería de Medio Ambiente, Junta de Andalucía;