Japanese Barberry

An Invasive Species

About this Plant

Japanese barberry is a deciduous shrub that is spiny with flowers and fruit and can grow to about 8 ft. high. It was first introduced to the United States in around 1800 as an ornamental plant (Mnfi) This bush is extremely tolerant of a wide range of soil and moisture conditions as well as intense shade and its habitat is found along woodland edges, roadsides, stream banks, old fields and forests.(MNFI)

Invasive Specie

It is apparent that the Japanese Barberry Shrub is an invasive species as it “is a rapid growing shrub that displaces native plants and degrades wildlife habitat and is avoided by deer, giving this invasive shrub a competitive advantage.”(NCSU) This plant does this by dispersing its seeds with the help of birds and other small mammals and taking root wherever it is placed and having a high germination rate. (Swearingen) All of the above has negatively affected the surrounding ecosystem because as the Japanese Barberry bush takes over animals are left without food. This is because this plant is able to grow pretty much anywhere, with or without sunlight, and it can grow new bushes out of root fragments making this plant pretty near invincible. In turn animals are forced to leave their habitat in favor of another where they are able to find food and live life out of reach of the Japanese Barberry bushes thorns.

Works Cited

"Berberis Thunbergii 'Crimson Pygmy'" Berberis Thunbergii, Japanese Barberry, Crimson

Pygmy Barberry. N.p., n.d. Web. 10 Mar. 2014.


Picture One

"Invasive, Exotic Plants of the Southeast." Japanese Barberry. NC State University, n.d.

Web. 10 Mar. 2014. <http://www.ncsu.edu/goingnative/howto/mapping/invexse/japanbar.html>.

"Japanese Barberry: Berberis Thunbergii." Invasive Species-Best Control Practices. Michigan Department of Natural Resources: Michigan Natural Features

Inventory,Feb. 2012. Web. 10 Mar. 2014. <http://mnfi.anr.msu.edu/invasive-


Swearingen, Jil M. "Invasive, Exotic Plants of the Southeast." National Parks Service. U.S.

Department of the Interior, n.d. Web. 09 Mar. 2014.

<http://www.nps.gov/plants/alien/fact/beth1.htm>. Picture Two

"Welcome to My World: Oktobris 2011." Welcome to My World: Oktobris 2011. N.p., n.d.

Web. 10 Mar. 2014.

<http://icegirlsworld.blogspot.com/2011_10_01_archive.html>. Picture Three