Thistles weeds can be particularly difficult to remove, thanks to their fine spikes that will lodge themselves in your skin, ...

When it comes to common weeds, 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 ...

Californian thistle is one of the most common thistle species in New Zealand. It is very troublesome in pastures because it is so difficult to control. Once a plant is established in pasture, it forms ...

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 ...

However stem elongation ("bolting") occurs when the plant produces flowers ... As with most thistles, Scotch thistle has a tap-root. However, it is the only thistle species in New Zealand that has ...