The basal foliage of the Italian eryngo is evergreen in milder climates and looks rather like leathery thistle leaves. In summer, the well branched stems carry small egg-shaped flower heads ...

though doesn’t have spines like true thistles. The sow thistle has quite a succulent stem when it flowers, and the foliage oozes a milky sap when cut. It is most likely to be confused with a closely ...

Native to Europe but common in the U.S. today as well, milk thistle is a flowering plant in the daisy (Asteraceae) family of flowers. This is the same plant family that has more than 30,000 other ...