Garlic Mustard (Alliaria petiolata)
Garlic mustard is a biennial herb in the mustard family.
The first year of its life, the plants produce a low-growing rosette of kidney-shaped leaves.
In its second year of growth, it produces an upright stalk one to four feet tall with toothed opposite leaves small white flowers.
Seed capsules form in late spring with seeds maturing in early to mid-June.
Garlic mustard was likely introduced as a culinary herb, or medicinal plant.
It has escaped cultivation and now is reported throughout most of the US. It is shade tolerant and unpalatable to deer.
Each plant produces hundreds of seeds that remain viable for five to seven years (Swearingen et al., 2014).