Invasive Plants to be Avoided -
Garlic mustard (Alliaria petiolata)
An alien of the Mustard (Brassicaceae) family, grows 1-3 feet tall from April - June along roadsides, waste places, wood edges. Has somewhat triangular or heart-shaped leaves (stalked and sharply toothed) with the odor of garlic. Garlic mustard can produce several thousand seeds from one plant and the seeds can remain viable for seven or more years. It is extremely invasive and noxious and should be eradicated whenever found. It is a particular threat to spring wildflowers, overtopping and shading them out.
To learn more
mustard, visit its profile at the USDA Plants