Euphrasia stricta

Euphrasia stricta, the drug eyebright, is an annual forb in the genus Euphrasia. It has been introduced in northeastern North America, where it is found in New England (except Connecticut), New York, Pennsylvania, Nova Scotia, New Brunswick, Prince Edward Island, Ontario, Quebec, the upper peninsula of Michigan, northern Wisconsin, Minnesota and Illinois. It is also found in Central Europe and Pyrenees The preferred growing location is on moist, calcareous sands, such as those on some moors and dunes. The plant is a hemiparasite and can steal water and salts from grasses....read more on Wikipedia.