Pelargonium

 

There are around 300 species of pelargoniums coming from different parts of the old world, although the large majority comes from South Africa and Namibia. Although most are soft-wooded shrubs, there are some herbaceous species. Many are still called 'geraniums', but they differ from the real geraniums by the shape of their zygomorphic flower as well as their seeds. Pelargonium flowers have the 2 upper petals different from the 3 lower ones, while in the real Geraniums, all the petals are identical.

There are a number of attractive succulent pelargoniums coming from South Africa. Their stems are often thickened and sometimes spiny. The leaves are generally deciduous, falling during the dormant season, which is summer for most species.

Succulent pelargoniums don't take any frost, and should be protected from too much direct sunlight. They are propagated by seeds, or by cuttings in spring.

Species and varieties
Pelargonium alternans
Pelargonium cortusaefolium
Pelargonium crispum (Lemon-Scented Geranium, Finger Bowl Geranium)
Pelargonium crithmifolium (Samphire Leafed Geranium)
Pelargonium domesticum (Lady Washington Pelargonium, Regal Geranium)
Pelargonium echinatum (Cactus Geranium)
Pelargonium ferulaceum
Pelargonium graveolens (Rose-Scented Geranium)
Pelargonium hortorum (Common Geranium, Garden Geranium, Zonal Geranium)
Pelargonium incrassatum
Pelargonium odoratissimum (Apple Geranium)
Pelargonium peltatum (Ivy Leaf Geranium)
Pelargonium quercifolium (Almond-Scented Geranium, Oak Leafed Geranium)
Pelargonium sericifolium
Pelargonium tomentosum (Peppermint Geranium)
Pelargonium triste
Pelargonium xerophyton (Desert Geranium)
Pelargonium carotaefolium synonym of Pelargonium triste
Pelargonium coniophyllum synonym of Pelargonium triste
Pelargonium corallinum synonym of Pelargonium alternans
Pelargonium cortusifolium synonym of Pelargonium cortusaefolium
Pelargonium crassifolium synonym of Pelargonium crispum (Lemon-Scented Geranium, Finger Bowl Geranium)
Pelargonium daucifolium synonym of Pelargonium triste
Pelargonium daucoides synonym of Pelargonium triste
Pelargonium elongatum synonym of Pelargonium triste
Pelargonium laxatum synonym of Pelargonium triste
Pelargonium microphyllum synonym of Pelargonium alternans
Pelargonium millefoliatum synonym of Pelargonium triste
Pelargonium multiradiatum synonym of Pelargonium triste
Pelargonium oxalidifolium synonym of Pelargonium triste
Pelargonium papaverifolium synonym of Pelargonium triste
Pelargonium quinquevulnerum synonym of Pelargonium triste
Pelargonium strictum synonym of Pelargonium crispum (Lemon-Scented Geranium, Finger Bowl Geranium)
Pelargonium tuberosum synonym of Pelargonium triste

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