Dracophyllum longifolium, commonly called inaka (from Māori), is an upright shrub or small tree in the family Ericaceae that is endemic to New Zealand.

Dracophyllum longifolium grows mostly in the South Island but is found throughout New Zealand from sea level up to 1,200 metres (3,900 ft).

[6]This species has the following varieties:[7] D. acerosum D. densum D. filifolium D. kirkii D. ophioliticum D. patens D. rosmarinifolium D. trimorphum D. arboreum D. longifolium D. muscoides D. pronum D. scoparium D. strictum D. fiordense D. menziesii D. latifolium D. townsonii D. traversii other Dracophyllum spp.

Oliver, however, conducted his research based purely on morphological characteristics such as growth habit, leaves, and flowers.

In 2010 a team of several botanists, including Stephanus Venter, published an article on the genus Dracophyllum in the Annals of the Missouri Botanical Garden.

In it they performed a cladistic analysis and produced a phylogenetic tree of the tribe Richeeae and other species using genetic sequencing.