not native and usually not yet well established, as exotic plants or animals.
an adventive plant or animal.
for an earlier sense; <
) advance, incursion (see
(of a species) introduced to a new area and not yet established there; exotic
such a plant or animal
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Not native to and not fully established in a new habitat or environment. An adventive plant may be locally or temporarily naturalized without finding conditions that allow it to spread more widely.
The American Heritage® Science Dictionary
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Establish biological controls in targets adventive range.
The focus is on using natural enemies against adventive pests.