Sensitive Briar (Mimosa quadrivalvis), 200 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 6 to 10 long trailing or climbing native perennial vine with bright pink globular flowers. A summer and fall flowering plant preferring dry to medium soils in full sun or part shade.