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Japanese Barberry
Berberis thunberggi 

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Trash It!

Japanese Barberry is a common ornamental species, sometimes mistakenly planted in Michigan or Wisconsin. However, birds disperse the seeds into woodlands by eating their red berries. Once established in a natural habitat, the plant outcompetes native vegetation. Deer or livestock are known to avoid consuming the plant because of its sharp thorns. Japanese Barberry can be a health hazard due to its dense foliage that attracts mice and ticks. These tics can then transmit Lyme disease. If this plant escapes into a forest, it can be costly to manage. If you do this, be aware that any plant fragment left behind can reproduce a new individual.
Identification of Japanese Barberry-Midwest Invasive Species Network
  • Leaves are small and spoon shaped in arranges in alternating pattern from stem. 

  • Stem is have several small stems that may be slightly curved only on older plants. 

  • The berries are very recognizable being bright red, egg shape, typically found singly but can be in clusters. Although, there are some cultivars that do not produce any berries

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