Cirsium arvense is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and western Asia, northern Africa and widely introduced elsewhere. [2][3][4][5] The standard English name in its native area is creeping thistle. [6] . It is also commonly known as Canada thistle and field thistle. [7][8]

Mar 13, 2023 · Canada thistle can be found in all 12 Canadian provinces and territories and 43 of 50 U.S. states, avoiding the South and Southeast for the most part. Canada thistle is considered a noxious weed in most states, meaning its control is required by law.

Canada thistle is a cool season perennial which spreads by seed and vegetatively by creeping roots. In Indiana, Canada thistle normally initiates growth in spring, reaches the flower-bud stage the first week in June, and full flower about the third week of June. Seed production is usually completed in early July.

Canada thistle (Cirsium arvense), is a spreading perennial weed of crops, pastures, and disturbed sites. It is most troublesome in perennial crops, rangeland, and areas where reduced tillage is practiced. Canada thistle spreads through both seeds and budding from underground roots.

Species Profile: Canada Thistle. Crowds out native species (Stachion and Zimdahl 1980); reduces crop and forage yields (Moore 1975)

Dec 4, 2022 · Let's look at how to identify Canada thistle and how to get rid of Canada thistle. Canada thistle is a perennial weed that has soft green, deeply lobed, spear-like leaves and these leaves have sharp barbs on them. If allowed to go to flower, the flower is a purple pom-pom shape that will be produced in clusters at the top of the plant.

Canada thistle thrives in disturbed soils of both managed and natural landscapes. This thistle prefers full, direct sun and moist soils, but its deep taproot and wide horizontal roots allow it to adapt to many different moisture and light conditions.

Canada thistle (Cirsium arvense) is an aggressive, creeping perennial weed that infests crops, pastures, rangeland, roadsides and noncrop areas. Generally, infestations start on disturbed ground, including ditch banks, overgrazed pastures, tilled fields or abandoned sites.

Canada thistle is a widely distributed perennial plant that can grow up to five feet tall. Its leaves have sharp spines along the edges. Canada thistle grows in a variety of habitats with full or partial sun and is often found in disturbed areas such as roadsides, trails, …