Garlic Mustard (Alliaria petiolata)
A plant that flowers the second year. Young leaves taste of both garlic and mustard giving the english name. The seeds are one of the earliest known spices dating back to 4000BCE. This species has been introduced to North America by earlier settlers.
How to Identify
When flowering, the plant is grown high and thin. Identified by its color white and the small four symmetrical petals of the flower, bundled together with other flowers.
Where and When to Spot
I usually see this flower in forests forming large patches.