garlic mustard

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A Eurasian plant (Alliaria petiolata) in the mustard family, having small white flowers and an odor of garlic and commonly occurring as a weed in North America.

from The Century Dictionary.

• noun See mustard.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A woodland plant, Alliaria petiolata, that has a garlic-like aroma

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun European herb that smells like garlic