Wild lupine is a flowering plant belonging to the Lupinus genus, known for its vibrant blue, purple, or white flowers. It typically grows in sandy or well-drained soils and can be found in various habitats, including meadows and open woodlands. The plant is a perennial, meaning it lives for several years, and can reach heights of 1 to 3 feet. This plant plays a crucial role in its ecosystem by fixing nitrogen in the soil, which benefits surrounding plants. Wild lupine is also a host plant for the larvae of the Karner blue butterfly, making it important for local biodiversity.