 Currently, both "grandiflora" and "ovata" are regarded as synonyms of "Epacris impressa" rather than being classified as distinct varieties.The plant populations that best fit Bentham's original description of "grandiflora", also known as Grampians heath, occur naturally on sandstone at locations including Mount Zero, Mount Stapylton and the Black Range.Other nearby populations are regarded as having intermediate characteristics, including those in the Victoria Range and Mount Arapiles.