Chamaecrista fasciculata

Ceratostigma plumbaginoides

1″ bright yellow flowers.  July – August.  Pea-like seed pods follow.  Mimosa-like leaves fold up when touched!  1 – 3′ tall.  Full sun.  Drought tolerant.  Attracts pollinators, gamebirds and songbirds.  Northeastern U.S. native annual of sandy soils.  Will readily perpetuate from year to year by reseeding itself.