It is an introduced species in some of its present range.

It can sometimes be found outside its range as an introduced species.

The plant is an introduced species across much of the world.

It may be an introduced species in many areas, however.

It can be found in many other parts of the world as an introduced species.

A list of introduced species is given in a separate article.

It is known elsewhere as an introduced species, particularly California.

It is native to China and has been an introduced species to other parts of the world.

However, some introduced species are harmful to the environment, economy or to human health.

Sports fishing of these introduced species is a major activity in the Park.

Perhaps the best place to study problems associated with introduced species is on islands.

It is an introduced species and often a weed in California.

It can be found in many places growing as an introduced species and a common weed.

It is also known as a rare introduced species in parts of Europe.

Introduced species of plants have altered the local plant community.

It was described from Hawaii, but is probably an introduced species.

Some also defend the rights of the introduced species to exist as well.

It is native to Europe but can be found elsewhere as an introduced species.

It has been listed as one of the 100 worst introduced species.

It is threatened by introduced species of plants and animals.

How much information on population biology is needed to manage introduced species?

It is also present on other continents as an introduced species.

Unlike some other environmental problems such as pollution, the effect of an introduced species is not a single event.

This article concerns the first two definitions; for the third, see Introduced species.

It has also been recorded as an introduced species in Hawaii.