One of the weeds nearly everyone recognizes is the thistle. There are numerous thistles but the ones that make the Prohibited Weed List in Minnesota are the Canada thistle and the plumeless ...

grows as a typical thistle rosette over winter, then develops an upright flower stem in spring, from which seed is produced and falls into the soil where it spends summer. Winged thistle looks and ...

and covered in spines often found with multiple flowers per stem wind dispersed seeds carried by clusters of cotton-like fuzz Note: European marsh thistle is distinguished from Canada thistle by ...

Sow thistle is commonly found in crops, gardens and waste areas. As with many members of the Asteraceae family, it starts life as a rosette, and then bolts to form an upright flower stem. Sow thistle ...

Canada thistle is a colony-forming perennial from deep and extensive horizontal roots. Stems are 1 to 4 feet tall, ridged, branching above. Leaves are alternate, lacking petioles, oblong or ...