Common Names: Prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, spiny-leaved sow thistle
Sub-category: Aster family
The leaves are bluish-green, simple, lanceolate, with wavy and sometimes lobed margins, covered in spines on both the margins and beneath. The base of the leaf surrounds the stem. The plant can reach 6 ft in height. The leaves and stems emit a milky sap when cut. The flowers grow in clusters and the end of the stems.
As a weed, it is commonly found near roadsides, landscapes, and pastures.
Primary Flower Color: Yellow
Secondary Flower Color: Yellow