Aggressive spreaders, like the infamous purple musk thistle (Carduus nutans), sprout wherever there is bare soil. They'll turn from tiny seedlings into giant plants if they're left unbothered. They're ...

We’re going to get this article out of the way early on in the season, as it’s the plant family I get the most calls about. Thistles are the most unpopular noxious weed in Archuleta County ...

BOZEMAN, Mont. – A new publication from Montana State University Extension is designed to help identify invasive exotic thistles and verify those that are native to Montana. People often think that ...