Naturalised. (Perez, C.E. & Bensusan, K. (2005) The Upper Rock Nature Reserve, A Management and Action Plan. The Gibraltar Ornithological & Natural History Society. Gibraltar); Producing extensive cover on the east side sand slopes and at Europa Point. (Species that have been introduced into Gibraltar. (Unknown).); Spreads slowly to nearby areas, where can form relatively dense stands. Limited distribution within Upper Rock. This species has become naturalised in Gibraltar, and is a feature of open areas such as the east side and Europa Foreshore (Cortes & Abrines 1994). Within the Nature Reserve, Agave americana grows mainly below the Queen's lookout, with some scattered individuals elsewhere. Only very small numbers occur within the Nature Reserve. (Perez, C.E. & Bensusan, K. (2005) The Upper Rock Nature Reserve, A Management and Action Plan. The Gibraltar Ornithological & Natural History Society. Gibraltar); Common. (Gibraltar flora database (Unknown));
- 1.4. Forest – Temperate
- 3.5. Shrubland – Subtropical/tropical dry
Invasive (Pagad S, Wong L J (2020): Global Register of Introduced and Invasive Species of Gibraltar; Perez, C.E. & Bensusan, K. (2005) The Upper Rock Nature Reserve, A Management and Action Plan. The Gibraltar Ornithological & Natural History Society. Gibraltar; Resource Catálogo de especies exóticas (2013). Available at: https://www.juntadeandalucia.es/medioambiente/portal/landing-page-%C3%A…; European Commission (2005) Especies vegetales invasoras en Andulasia. La Consejería de Medio Ambiente, Junta de Andalucía);
Although the possibility that this species might exclude indigenous flora where it grows is a very real one, only very small numbers occur within the Nature Reserve, and the impact on local flora is therefore Minimal. (Perez, C.E. & Bensusan, K. (2005) The Upper Rock Nature Reserve, A Management and Action Plan. The Gibraltar Ornithological & Natural History Society. Gibraltar); Alteration in the distribution of species. Modification of the landscape. (Resource Catálogo de especies exóticas (2013). Available at: https://www.juntadeandalucia.es/medioambiente/portal/landing-page-%C3%A…);
Terrestrial. Introduced from Mexico. (Species that have been introduced into Gibraltar. (Unknown).);
Introduced as an ornamental plant. Alteration in the distribution of species. Modification of the landscape. (Resource Catálogo de especies exóticas (2013). Available at: https://www.juntadeandalucia.es/medioambiente/portal/landing-page-%C3%A…);
Pagad S., Wong L.J. (2020): Global Register of Introduced and Invasive Species – Gibraltar. v1.1. Invasive Species Specialist Group ISSG; Gibraltar Nature Reserve Management Plan (2019). Department of the Environment, Heritage and Climate Change. H.M. Government of Gibraltar; Species that have been introduced into Gibraltar. (Unknown).; Perez, C.E. & Bensusan, K. (2005) The Upper Rock Nature Reserve, A Management and Action Plan. The Gibraltar Ornithological & Natural History Society. Gibraltar; Gibraltar flora database (Unknown); European Commission (2005) Especies vegetales invasoras en Andulasia. La Consejería de Medio Ambiente, Junta de Andalucía;