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Alien Plants
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Garlic Mustard - Photographs
Page 2
Showing the effects of garlic
mustard
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Here are a few pictures of areas where garlic mustard has
completely taken over.
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One of the reasons that
garlic mustard is so invasive is its ability to shade out and crowd
out native species.
As can be seen in this photo, there's really no
room for anything else to grow.
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Here is a closer look at
how it grows.
Often several stalks grow up from each plant. The
plants grow tall enough that native plants can't possibly get
started because the soil is quite shaded.
These pictures were taken in May in southern
Ontario. Notice that the garlic mustard has already become fully
grown and is flowering before many (if not most) native plants can
even get started.
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Here is a dense carpet of
first year garlic mustard plants.
Seemingly benign, this entire patch will bolt next
spring and shade out all other plants. |
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This picture was taken
in the arboretum section of the Royal Botanical Gardens in
Burlington, Ontario ("RBG").
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This is at Point Pelee
National park, on the north shore of lake Erie in southern Ontario,
in May 2002.
Many areas of the forest in this park have been
completely taken over by garlic mustard, and in many cases, no
native plants survive.
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Although it seems to
prefer forests, garlic mustard is equally at home in fields, as can
be seen in this picture of an infested field at the RBG in May 2002.
Again, no other plants can survive in an infested
area.
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Garlic mustard can grow just about anywhere.... |
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Here's another example
showing how densely it grows, the many stalks that arise from each
root, and how nothing else can grow with it.
This is at Point Pelee, near the tip of the point,
again in May 2002.
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