the plant was accidentally introduced to North America by seed and grain imports and spread easily through contaminated hay. Bull thistle starts out life as a prickly ground-hugging rosette that ...

The sow thistle has quite a succulent stem when it flowers, and the foliage oozes a milky sap when cut. It is most likely to be confused with a closely related species called prickly sow thistle ...

few are as problematic as Canada thistle. This plant has a tenacious and fast-growing root system. A single seed is all it takes for an entire patch to spring up and spread. Plus, it's prickly to ...

European marsh thistle, a terrestrial and wetland herbaceous biennial in the Asteraceae family, is an invasive plant that prefers moist soils ... are alternate with deeply pinnate segments and spiny ...

It may look like the last thing you'd want to eat, but that scary-looking bull thistle is edible. Here's how to prepare it according to the LSU Ag Center ...

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 ...

In the vegetative stage, the winged thistle has the typical prickly rosette of a thistle species, though it tends to have some faint whitish venation in leaves, but not as strongly as in variegated ...