== Taxonomy == Carl Linnaeus grouped in the same genus (Geranium) the three similar genera Erodium, Geranium, and Pelargonium. The distinction between them was made by Charles Louis L`Héritier de Brutelle based on the number of stamens or anthers: five for Erodium, seven for Pelargonium, and ten for Geranium. However, the three genera have the s.... Found on http://en.wikipedia.org/wiki/Erodium