Sign up for our Newsletter
ONAC2 (Large)

Scotch Thistle (Onopordum accanthium)

From the Wikipedia entry on this invasive weed:

Onopordum acanthium (Cotton thistle, Scotch thistle), is a flowering plant in the family Asteraceae. It is native to Europe and Western Asia from the Iberian Peninsula east to Kazakhstan, and north to central Scandinavia, and widely naturalised elsewhere.[1][2][3] It is a vigorous biennial plant with coarse, spiny leaves and conspicuous spiny-winged stems.[4]

In the late 19th century, it was introduced to temperate regions of North AmericaSouth America, and Australia as an ornamental plant, and is now considered a major agricultural and wildland noxious weed. It has been recorded from nearly 50 countries.[16] It is difficult to eradicate because of its drought resistance. It can spread rapidly and eventually dense stands prohibit foraging by livestock.

Share this post

Share on facebook
Share on google
Share on twitter
Share on linkedin
Share on pinterest
Share on print
Share on email
Scroll to Top