Musk
Thistle
(Carduus nutans L)
Life Span: Biennial (occasionally annual)
Origin: Eurasia
Reproduction: Seeds
This is the most common of the Noxious Weeds that can
be found throughout Nebraska. It was introduced into the United States
in
the early 1900's as an ornamental. It originated from Southern Europe
and Western Asia
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The reason this plant is considered noxious is because :
1. Each plant generates thousands of seeds.
2. There are no natural predators for the plant in America.
3. It is very aggressive, competing with good vegetation and crops.
4. Negative impact on Agriculture
Musk Thistle begins as a rosette in the Fall and Spring.
It can be easily identified as a thorny patch
with leaves that have a white midrib (center) and a white edge on the
outer part of the leaves.
The Musk Thistle can reach a height of almost 10 feet in some cases,
usually averaging around 5 to
6 feet depending on competition. It is known for its large purple blossoms
found on different branches.
These blossoms can contain hundreds to thousands of seeds, each. A full
grown Musk Thistle can
be easily identified from other thistles by the lack of thorns from
the last leaf to the blossom on the
terminal stem.
CONTROL
METHODS
For a more detailed description of Musk Thistle, check out the
Nebraska Weed Control Association
Website.
For more information on Musk Thistle in Douglas County,
please call (402)444-4583 or email DCNWC.