The Yakima County Noxious Weed Board has been helping landowners control problem and noxious weeds since 1975. Contact them at 509-574-2180, email [email protected] or visit ...

Native thistles, however ... “New plants pop up from the roots, so where you had one Canada thistle last year, you might have 30 this year, and they are all interconnected,” says Moranz.

How did tumbleweeds spread across North America? Russian thistle isn't native to North America. It is instead native to dry and semi-dry regions throughout Europe and central Asia. The Russian thistle ...

Bull thistle, a member of the Asteraceae family, is yet another herbaceous biennial on our list of invasives. Unfortunately, bull thistle can flourish in an array of sites ranging from meadows, ...

Insect diversity on Native Thistles in the Upper Arkansas Valley The next Central Colorado Humanists Sunday Science program ...

May and June are the months when we frequently see both native and non-native forbs begin to grow and start to flower in range and pasture. If you are seeing “pretty flowers” ...

Canada thistle, a terrestrial herbaceous perennial in the Asteraceae family, is an open-land invasive that prefers disturbed upland areas as well as wet areas with water fluctuations. Canada thistle ...