Musk thistle (Carduus nutans) is a biennial or winter annual, native to Eurasia. It was introduced into the U.S. as a contaminate in soil ballast (from ships). It invades roadsides, pastures ...

Alluring, like sirens, some vicious weeds produce beautiful flowers in calming purple hues. Here are the problematic blossoms ...

For the past few years I’ve participated in “Thistle Thursdays,” targeting a popular trail near Jackson, Wyoming. The weekly weed party was organized in 2019 by Morgan Graham, wildlife habitat ...

Nodding thistle is one of the most competitive thistle species causing problems in New Zealand pastures. It is known as musk thistle in some countries overseas. The species gets the name "nodding ...