ABSTRACT
The phytochemistry of Geranium, a genus of some 300 temperate species (Mabberley, 1997) is reasonably well known today. According to Hegnauer’s dictionary of plant chemistry (Hegnauer, 1966, 1989), at least 55 species have been investigated chemically. Furthermore, detailed studies have been carried out on at least three well known species: G. macrorrhizum, an essential oil plant; Herb Robert, G. robertianum, a European medicinal plant; and G. thunbergii, a Japanese medicinal plant.
