Williams P.d 4 Invasive Species Poster!
Published on Sep 26, 2022
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PRESENTATION OUTLINE
"Wanted." Japanese Barberry/Berberis thunbergii
Dead or Alive? By: Maya Williams
Identifying Characteristics! (Scroll up/down)
- Fruit appear around mid-summer and are bright red in color, oval-to-egg shaped, and about 0.4” long. The inner wood and roots are bright yellow in color.
- Shrubs usually have multiple stems and can be upright or spreading and range from 1 to over 5’ in width. Leaves are alternately arranged in clusters, are 0.5 – 1.5” long, and oval-to-spoon shaped with smooth margins. L
- Leaf color can be red, purple, dark green or yellow-green and differs substantially between varieties and with light availability.
- Twigs and young branches are reddish brown, angular and grooved, and have single needle-like 0.3 – 0.5” long spines beneath each leaf cluster.
- The inner wood and roots are bright yellow in color.
When was it last seen?
- Japanese barberry found in natural areas
- It most frequently has dark green leaves.
Japanese Barberry's Distribution Map in Midwest!
Where it's current distribution shaded.
What to find?
- Identify the plants.
- If you cut a stem, there is a hollow spot in the center of the stem, though it might only be the diameter of a pencil lead.
- The shrub produces red or orange berries.
Photo by Yoksel 🌿 Zok
Crimes!
- can increase soil nitrogen and carbon cycling rates while increasing soil alkalinity in invaded ecosystems, further impacting native plant communities
- contributes to a humid micro-climate near the ground, which increases tick feeding activity and overall survival leading to notably larger populations.
Rewards!
- Plants such as barberry, Japanese knotweed and burning bush looked great to them.
- What they didn’t bring, of course, were the insects that eat them and keep their numbers under control in their native environments.
- if the January thaw has melted away the snow and ice where you are, this is a good time to work on getting rid of some invasive trees and shrubs.
