Introduced species:  Garlic Mustard (Alliaria petiolata) Characteristics:  Garlic mustard is an herbaceous “biennial” (more on that in a minute) with a deep, white taproot.  The rosettes, formed in the first

Introduced species: Italian Arum (Arum italicum) Characteristics:  Italian Arum—a.k.a. Lords and Ladies—is a tuberous perennial, growing to 12 inches high.  It has glossy, arrow-shaped leaves up to 14 inches long,

Introduced species: Hairy bittercress (Cardamine hirsuta) Description: This month’s weed is less of a threat to natural areas than many featured weeds–though it does show up there–but is one that