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
Philotheca Philotheca Philotheca is a genus of flowering plants belonging to the family Rutaceae. Many plants formerly in "Eriostemon" are now in this genus. "Philotheca" is a genus of about 45 species, all of which occur only in Australia. The genus has been recently increased in number by the transfer of about 39 species from the genus "Eriostemon". Transferred species include "Philotheca myoporoides" which was previously known as "Eriostemon myoporoides". "Philotheca" is closely related to the well-known "Boronia", the most obvious distinction being the presence of 4 petals in "Boronia" and 5 in "Philotheca". The leaves are also opposite in "Boronia"