List of introduced species

Content sourced from Wikipedia, licensed under CC BY-SA 3.0.

Humans have moved many species to new regions. This short guide focuses on established introduced plants that live in the wild outside of human care. Most introductions can disrupt their new homes, but some are kept or used for conservation purposes.

In Australia, about 15% of native flora is made up of introduced species.

This is a non-exhaustive look at some of the more significant introduced plants. For more information, there are resources from the GB Non-native Species Secretariat, which offers a toolkit, photo gallery, identification sheets, risk assessments, case studies, and local-action resources.

The list draws on well-known sources and databases, including The Birds of the Hawaiian Islands by Robert and Peter Pyle and the Nonindigenous Aquatic Species Database. In New Zealand, up to 26,000 plants have been introduced, and this article covers only a sample of the common and invasive ones. The examples span marine, freshwater, and terrestrial environments.

This is not a complete catalog—just a brief look at some of the more significant introduced plant species.