Cyanothamnus yarrowmerensis is an erect, woody shrub that typically grows to a height of about 0.5 m (1 ft 8 in).

[2][3] This species was first formally described in 2003 by Marco F. Duretto and given the name Boronia yarrowmerensis in the journal Muelleria from a specimen collected north of Yarrowmere Station homestead.

[2][4] In a 2013 paper in the journal Taxon, Marco Duretto and others changed the name to Cyanothamnus yarrowmerensis on the basis of cladistic analysis.

[2] Cyanothamnus yarrowmerensis is only known from the type location in North Queensland where it grows in Eucalyptus forest or woodland on sandy soil .

[2][3] Cyanothamnus yarrowmerensis (as Boronia yarrowmerensisis) is listed as of "least concern" by the Queensland Government Department of Environment and Science.