Thistle was an old-school Crayola color from 1949 that lasted nearly long enough to witness the millennium. In 1999, Crayola retired Thistle and replaced it with Indigo. Individually, Thistle is ...

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, ...