Petrorhagia been introduced to other continents. Petrorhagia Petrorhagia is a small genus of annual and perennial plants of the pink or carnation family, mostly native to the Mediterranean region. The genus is often referred to as Tunica, which is an obsolete synonym. 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
Flowering Plants of Africa (1921-1939), Edwin Percy Phillips (1940-1944), Robert Allen Dyer (1945-1964) and L. E. W. Codd. Flowering Plants of Africa Flowering Plants of Africa is a series of illustrated botanical magazines akin to "Curtis's Botanical Magazine", initiated as Flowering Plants of South Africa by I. B. Pole-Evans in 1920. It is now published by the South African National Biodiversity Institute (SANBI) in Pretoria. The magazine depicts and describes flowering plants from Africa and its neighbouring islands. The first volumes were printed in England by L. Reeve & Co. These first illustrations were done in black and white by lithography, zinc plates later