Sundial Lupine, Indian Beet, Blue Lupine, Old Maid’s Bonnets
Lupine (Lupinus perennis), a member of the Fabaceae (Bean Family), is a herbaceous perennial, that grows to 3 feet tall and blooms in the spring and summer with blue/purple flowers. Lupine has been in decline due to loss of habitat and fragmentation leading to the rarity of the Karner Blue butterfly, which is dependent on it.
More information on lupine can be found on this blog post.
Lupine grows primarily in open woods and requires sun or part shade. It is native to eastern North America and is rare in a lot of the northeastern states.
The genus name of this plant is derived from the genus name of the wolf (Lupus). (Missouri Botanical Garden).