Cattail (Typha latifolia), 4000 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 perennial with long narrow parallel veined leaves and a fluffy sausage-looking seed head. A summer flowering plant found in or near water preferring full sun sites.