Platysace commutata is a shrub that is endemic to Western Australia. The shrub typically grows to a height of 0.1 to 0.5 metres (0.3 to 1.6 ft). It blooms between October and April producing white-cream and blue flowers. Often found among quartzite rocks on hill tops and summits it is distributed widely but with a scattered population from the Mid West down to the Great Southern region of Western Australia growing in sandy soils or granitic clays.