It is a sprawling shrub with thin stems, hairy young shoots, pinnate leaves and pink, four-petalled flowers over a long period.

Boronia keysii is an open, thin-stemmed, sprawling shrub that typically grows to a height and width of about 2 m (7 ft).

[2][3][4] Boronia keysii was first formally described in 1926 by Karel Domin from specimens collected by James Keys at Lake Cootharaba in 1909.

The description was published in the journal Bibliotheca Botanica published in Stuttgart under the heading Beitrage zur Flora und Pflanzengeographie Australiens (Contributions to the Flora and Plant Geography of Australia).

The main threats to the species include changes to the water table, inappropriate fire regimes and invasion by exotic pines from nearby plantations.