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
Vanilla (genus) Vanilla (genus) Vanilla, the vanilla orchids, forms a flowering plant genus of about 110 species in the orchid family (Orchidaceae). The most widely known member is the flat-leaved vanilla ("V. planifolia"), native to Mexico, from which commercial vanilla flavoring is derived. It is the only orchid widely used for industrial purposes in flavoring such products as foods, beverages and cosmetics, and is recognized as the most popular aroma and flavor. The key constituent imparting its popular characteristics is the phenolic aldehyde, vanillin. This evergreen genus occurs worldwide in tropical and subtropical regions, from tropical America to tropical Asia, New Guinea