Includes 2 subspecies and 2 varieties (both included by Orchard (1975) as varieties of subsp. exalata), only the nominate varieity present in Victoria. Haloragis exalata subsp. velutina is restricted to the Northern Tablelands region in N.S.W. and is distinguished by its shorter, hairy, and less prominently toothed leaves. See Haloragis exalata var. exalataprofile for description.
Orchard, A.E. (1975). Taxonomic Revisions in the Family Haloragaceae I. The Genera Haloragis, Haloragodendron, Glischrocaryon, Meziella and Gonocarpus. Auckland Institute and Museum, Auckland.
