It forms a four to eighteen inch wide rosette in its first year and blooms in its second year. Bull thistle leaves are coarse on top and soft on the bottom. They are deeply lobed, each lobe has a ...

Bull thistle starts out life as a prickly ground-hugging rosette that, in the summer ... of bull thistle Cirsium vulgare include lobed leaves that are furry underneath and spiny on top but ...

In the vegetative stage, the winged thistle has the typical prickly rosette of a thistle species, though it tends to have some faint whitish venation in leaves, but not as strongly as in variegated ...

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 ... sow thistle ...

Purple deadnettle, bull thistle, purple loosestrife ... After germinating in the fall, they develop a rosette of purple-tinted, heart-shaped leaves with toothed margins, supporting pale green ...

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, ...

The upper leaf surface is generally smooth and its underside can be smooth to slightly hairy. Canada thistle starts growth as a basal rosette before forming an upright stem ... Can be used to tell ...