title: Petrorhagia
text: # Petrorhagia
  
  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. Petrorhagia saxifraga is the tunic flower or coat flower, similar to baby's breath, but shorter, and used in rock gardens.
  
  These plants are mainly native to Eurasia, but some species can be found nearly worldwide, having been introduced to other continents.
  
  ## Species
  
  As of 2019, Kew's Plants of the World Online lists 28 accepted species of Petrorhagia:
  
  * Petrorhagia arabica (Boiss.) P.W.Ball & Heywood
  * Petrorhagia armerioides (Ser.) P.W.Ball & Heywood
  * Petrorhagia candica P.W.Ball & Heywood
  * Petrorhagia cretica (L.) P.W.Ball & Heywood
  * Petrorhagia cyrenaica (E.A.Durand & Barratte) P.W.Ball &
  * Petrorhagia dianthoides (Sm.) P.W.Ball & Heywood
  * Petrorhagia dubia (Raf.) G.López & Romo – hairy pink
  * Petrorhagia fasciculata (Margot & Reut.) P.W.Ball &
  * Petrorhagia glumacea (Bory & Chaub.) P.W.Ball &
  * Petrorhagia graminea (Sm.) P.W.Ball & Heywood
  * Petrorhagia grandiflora Iatroú
  * Petrorhagia hispidula (Boiss. & Heldr.) P.W.Ball &
  * Petrorhagia illyrica (Ard.) P.W.Ball & Heywood
  * Petrorhagia kennedyae (A.K.Jacks. & Turrill) P.W.Ball &
  * Petrorhagia lycica (P.H.Davis) P.W.Ball & Heywood
  * Petrorhagia macra (Boiss. & Hausskn.) P.W.Ball &
  * Petrorhagia nanteuilii (Burnat) P.W.Ball & Heywood – childing pink
  * Petrorhagia obcordata (Margot & Reut.) Greuter &
  * Petrorhagia ochroleuca (Sm.) P.W.Ball & Heywood
  * Petrorhagia pamphylica (Boiss. & Balansa) P.W.Ball &
  * Petrorhagia peroninii (Boiss.) P.W.Ball & Heywood
  * Petrorhagia phthiotica (Boiss. & Heldr.) P.W.Ball &
  * Petrorhagia prolifera (L.) P.W.Ball & Heywood – proliferous pink
  * Petrorhagia rhiphaea (Pau & Font Quer) P.W.Ball
  * Petrorhagia rupestris Brullo & Furnari
  * Petrorhagia saxifraga (L.) Link – tunic-flower
  * Petrorhagia syriaca (Boiss.) Mouterde & Greuter
  * Petrorhagia thessala (Boiss.) P.W.Ball & Heywood
  