More than 30 years ago, a group of scientists planted 4,200 seeds of the rare Pitcher’s thistle in the sandy dunes of the ...

THISTLES are some of the most pernicious and obnoxious weeds ever invented. The standard farmer’s nightmare version spreads far and wide via tough underground roving roots, and sends forth clouds of ...

Aminopyralid is a new auxinic herbicide that provides Canada thistle control at lower use rates than clopyralid. Studies were conducted to determine if differences in absorption, translocation, or ...

This is a preview. Log in through your library . Abstract A morphological study of Cirsium ochrocentrum supports separation of the phenotype with red corollas of the upper Gila River drainage from ...

CLEVELAND, Ohio -- As summer starts turning to fall in Northeast Ohio, weeds are sometimes the most attention-getting plants in the garden. Mild-mannered and time-strapped gardeners, like yours truly, ...

The Penn State Extension of Berks County Master Gardeners will be featuring questions and answers to inquires received through their Garden Hotline. Q: How do I get rid of invasive thistle on my ...

Once upon a time, no self-respecting gardener would have dreamt of cultivating thistles. However, in recent years many of them have become quite desirable garden plants. Heading the field as one of ...

The quirky name of the new plant is meant to honor a certain researcher in the botany community, the study said. Denver Botanic Gardens Colorado’s newest identified plant species is funky, to say the ...