Wild Senna (Cassia marilandica), 50 Certified Pure Live Seed, True Native Seed FREE SHIPPING Number of seed is Pure Live Seed, not bulk Species is US Native, not introduced alien We grow the seed so we control quality A 3 to 6 tall native legume with showy racemes of yellow flowers. A mid to late summer flowering plant that grows well in full sun or partial shade and dry to wet soils.