You don't want to remove them by accident. Identifying traits of bull thistle Cirsium vulgare include lobed leaves that are furry underneath and spiny on top but don't have the marbled patterns ...

Bull thistle (Cirsium vulgare ... standing atop spiny green bracts (modified leaves) and blooming from June through September. Its leaves are highly fissured and hairy, terminating in stiff ...

Bull thistle, a member of the Asteraceae family, is yet another herbaceous biennial on our list of invasives. Unfortunately, bull thistle can flourish in an array of sites ranging from meadows, ...

Canada thistle can be found in clay to gravelly soils. typically grows 3-5 feet tall stalk-less leaves around 6 inches long, wavy, lobed leaves with yellow spines at each lobe stem is spineless, ...