Lomatia tinctoria, commonly known as guitar plant,[2] is a shrub to about 2 metres tall of the family Proteaceae.

[3] It was given its current binomial name by Robert Brown in his 1810 On the natural order of plants called Proteaceae.

[6] An alternative name, Tricondylus silaifolius, published by Joseph Knight in his 1809 On the cultivation of the plants belonging to the natural order of Proteeae, was rejected,[7] after Brown's 1810 description of the genus Lomatia was officially conserved against Salisbury's 1809 Tricondylus.

[2] Lomatia polymorpha occurs "approximately south of the Pieman River and west of the Derwent River"[8] but where the ranges overlap, as for example near Lake St Clair, apparent hybrids occur, even though the leaves of the two species are "strikingly different".

[9] Lomatia tinctoria can be grown in gardens, doing best on acidic well-drained soils, and tolerating sunny or shady locations.