Pelargonium inquinans
This is one of the ancestors of the hybrid geraniums (Pelargonium x hortorum), the other being Pelargonium zonale). The red color of the flowers of hybrid red geraniums come from this one, while the horseshoe shaped mark comes from Pelargonium zonale.
I have seen in the web pictures of P. inquinans with flowers very similar to red geranium hybrids. The seeds I bought from S. Africa are probably from a very wild specimen: lots of inflorescenses but few flowers per umbel, and the plant grows to an enormous size. Even in a relatively small pot it reached 2 meters ( 6,5 ft) in one year. You have to prune it very hard to keep it to a manageable size and attractive. The red color is so intense in the flowers of this species... much more than that of the red hybrids. The easiest to grow of all geraniums.
Pelargonium quinquelobatum
A small plant. The flowers are very delicate... very light salmon in color (can also be whitish), small and shiny like mother of pearl. Very easy to grow and flower.
