Plant ID Register: 2000/128 M. [Myriophyllum] variifolium is native to Tasmania & Eastern Australia. Described by A.E. Orchard 1986: in Australia II. Brunonia 8(2): 173-292. (Emergent leaves pectinate. All lvs whorls of 4-5 lvs. Sterile specimen. D. Glenny, May 2000)