The plant was introduced to Europe in the early modern period.
For this reason, the plants have been introduced far from their native range.
This plant is known from just a few natural and introduced populations.
More recently, the plant has been introduced to parts of the Americas.
The plant has also been introduced outside of its native range into northern Europe.
The plant was discovered and introduced to the Western hemisphere more than 70 years ago.
If you don't already have them introduce living plants.
After the war, the garden was rearranged and new plants were introduced.
Alien plants and animals introduced by humans present a difficult challenge.
Authenticity was paramount: in the water garden only plants introduced before 1700 were used.