Petrorhagia is a small genus of annual and perennial plants of the family Caryophyllaceae, mostly native to the Mediterranean region.

It is low-growing with wiry stems and narrow, grass-like leaves.

The flowers are small, in clusters similar to members of the genus Dianthus, in pink, lilac, or white.

[citation needed] These plants are mainly native to Eurasia, but some species can be found nearly worldwide, having been introduced to other continents.

[1] As of 2024[update], Kew's Plants of the World Online lists 29 accepted species of Petrorhagia:[1] Media related to Petrorhagia at Wikimedia Commons This Caryophyllaceae article is a stub.