False bush-clover is a shrub native to East Asia. Its three-part leaves and pink to purple pea-shaped flowers resemble those of shrub bushclover (Lespedeza bicolor), which belongs to a different genus.
Look closely at the small leaflike piece beneath each flower: false bush-clover has one flower there, while shrub bushclover (Lespedeza bicolor) usually has two. A distant photo may not show this.
Why they get mixed upBoth have three-part leaves and pink-purple pea flowers.