|
Home
Noxious Weeds
Identification
Ecology
Control
Photo Library
Site Map
Include Graphics
|
|
| Scotch Thistle |
|
Scientific Name: Onopordum acanthium
|
| Distinguishing Features
|
| • It grows up to eight feet
tall. |
| • A rosette forms the first
year and can have leaves 2 feet long and 1 foot wide. |
| • The leaves are large,
hairy, with triangular lobes, and have a greyish-green, cottony look.
The mid vein is prominent and is covered with fine dense hairs on
both sides. The leaves are spiny-edged and form "wings"
around the stalk. |
| • The flowers are numerous,
spiny, rounded on the bottom but flat on top, and pale purple to violet
in color. They stand alone on branch tips. |
|
|