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 ...

It gets its common name from being an attractive food for pigs, and for having a vague similarity in appearance while young to thistles, though doesn’t have spines like true thistles. The sow thistle ...

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 ...

Like many other biennial invasives, bull thistle is able to produce a large seed bank that ... although repeated cuts - one early season before flowers bloom, and one late season - will be needed to ...