Noun | 1. | Petrocoptis - perennial tussock-forming rock plants; of Pyrenees and mountains of northern Spain; similar to and sometimes placed in genus Lychnis caryophylloid dicot genus - genus of relatively early dicotyledonous plants including mostly flowers carnation family, Caryophyllaceae, family Caryophyllaceae, pink family - large family of herbs or subshrubs (usually with stems swollen at the nodes) |