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

Andersonia macranthera is a spindly erect, or straggling shrub that typically grows to a height of more than 30 cm (12 in).

The petals are pink, pinkish blue or pinkish purple and red, forming a tube shorter than the sepals, with lobes about half as long as the petal tube and bearded in the lower half.

[2][3] Andersonia macranthera was first formally described in 1864 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae.

[3] Andersonia macranthera is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.