Baptisia bracteata

Baptisia bracteata, otherwise known as longbract wild indigo, long-bract wild indigo, long-bracted wild indigo, plains wild indigo, cream false indigo, or cream wild indigo, is a perennial herbaceous plant in the Fabaceae (bean) family that is native to the central and eastern United States. It is one of the earliest blooming species of Baptisia, beginning to bloom in March in certain areas of the United States. The flower clusters (racemes) spread out sideways or sprawl across the ground, unlike most other Baptisia species, which have vertical racemes....read more on Wikipedia.