Etlingera grandiflora is a monocotyledonous plant species that was first described by Theodoric Valeton, and got its current name by Rosemary Margaret Smith. Etlingera grandiflora is part of the genus Etlingera and the family Zingiberaceae. The species' range is Papua New Guinea. No subspecies are listed in the Catalog of Life.
References R.M.Sm., 1986 In: Notes Roy. Bot. Gard. Edinburgh 43: 245 WCSP: World Checklist of Selected Plant Families