Canadian thistle is resistant to some single-action ... Dandelion may be the most easily recognized flowering weeds, but it ...

Canada thistle (Cirsium arvense) is a creeping perennial broadleaf that is native to the Mediterranean area. It spreads rapidly through underground stems called rhizomes and by producing seeds.

The most common winter weeds are kochia, marestail, prickly lettuce, Canadian thistle, henbit and numerous mustard species in addition to several winter grasses. Atrazine is a critical yet ...

The 5,000-foot north face of Mount Temple (11,627 feet) in the Canadian ... annual weeds include redroot pigweed, lambsquarter, spotted spurge, prostrate purslane, Russian thistle, kochia ...

It is also declared a noxious weed in many foreign countries. If there is a good side to the Canadian thistle it is that a large number of birds, including Iowa's state bird the goldfinch feed on ...