Similar to H. riparia but this species has a distinctive prostrate habit and shiny hairs on the leaves which have tufts of hairs in the axils.
Victorian Grampians (endemic)
H. sericea (DC.) Benth. is covered with soft hairs but does not have the tufts of hairs in the leaf axils.
Source: (1997). Dilleniaceae. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.