The term geranium is confusing. The first geranium most gardeners encounter is not a geranium at all, but Pelargonium, a relative of the perennial geranium. True or hardy or perennial geraniums belong to the genus Geranium. You will sometimes see them referred to as cranesbill geraniums, because their seed pods do somewhat resemble a crane's bill. The foliage is often toothed and remains attractive. The flowers float on top of the plant, in shades of white, pink, magenta, purples and blues.