Taxandria callistachys is a shrub species that is endemic to an area in southern Western Australia.

[1] The erect shrub grows to a maximum height of approximately 2.5 metres (8 ft).

It blooms from March to September producing white flowers.

[1] It was first formally described by the botanists, John Wheeler and Neville Marchant in 2007, as part of the work A revision of the Western Australian genus Agonis (Myrtaceae) and two new segregate genera Taxandria and Paragonis in the journal Nuytsia.

[2] Often found along ridges, in swamps and winter wet areas and along road verges in the along the south coast of the Goldfields-Esperance region of Western Australia where it grows in clay, sand or loam soils around laterite or granite.