It is a low-lying shrub with simple leaves and white or pink flowers arranged singly or in groups of up to three in leaf axils.

[2][3][4][5] This species was first formally described in 1798 by James Edward Smith who gave it the name Boronia polygalifolia in his book ''Tracts relating to natural history.

[6][7] In a 2013 paper in the journal Taxon, Marco Duretto and others changed the name to Cyanothamnus polygalifolius on the basis of cladistic analysis.

[8] The specific epithet (polygalifolius) is a reference to the similarity of the leaves of this species to those in the genus Polygala.

[5] Dwarf boronia grows in open forest, woodland and heath between the Blackdown Tableland and Kroombit Tops in Queensland and Moruya and Geehi in New South Wales.