Lissanthe rubicunda is a species of flowering plant in the family Ericaceae and is endemic to the south of Western Australia.

It is a slender, erect to spreading shrub with few branches and sharply-pointed linear leaves and short spikes or racemes of red, tube-shaped flowers.

[2] This species was first formally described in 1864 by Ferdinand von Mueller who gave it the name Cyathodes rubicunda in his Fragmenta phytographiae Australiae from specimens collected by George Maxwell.

[5][6] In 2005, Jocelyn Marie Powell, Crayn and Elizabeth Brown transferred the species to Lissanthe as L. rubicunda in Australian Systematic Botany.

[8] Lissanthe rubicunda grows in sandy and clay soils, spongolite, limestone and laterite on planis, slopes, watercourses, swamp edges and winter-wet places in the Coolgardie, Esperance Plains and Mallee bioregions of southern Western Australia.