The plant was first described as
Epacris sinclairii in 1864 by
Joseph Dalton Hooker, based on specimens collected by
Andrew Sinclair. Hooker named the species after Sinclair. In the 1906
Manual of the New Zealand flora,
Thomas Cheeseman described Sinclair's tamingi as
Epacris pauciflora var.
sinclairii, This was the preferred nomenclature until 2002, when
Peter de Lange and Brian Grant Murray argued that Sinclair's tamingi should be recognised as a species due to morphological differences, growth pattern differences, that
E. pauciflora and
E. sinclairii are occasionally
sympatric, and their differing preferred habitats. Genetic analysis indicates that
E. sinclairii is closely related to
E. pauciflora. == Description ==