Long slender branches; leaves are threadlike and are arranged in an alternate pattern along the branches; fruits are absent in the axils; perennial; primary reproduction by vegetative fragmentation and tubers. Cascade® use rate: 3 ppm for 8 hrs (1.27 gal/CFS) Teton® use rate: 1 – 2 ppm for 6 hrs (0.67 – 1.35 gal/CFS)