Plant of the waste grounds and underwood from 0,10 to 0,50 m of which one uses the aerial parts.
Robert geranium is used for its haemostatic properties.
Also: nephritis, renal lithiasis, oliguria, diabetes, diarrhoea.
In external use : Angina, mouth ulcers, scabs, wounds, tonsillitis.
Decoction : 30 g for one liter of water in gargarisms or compress for angina sore-throat, mouth ulcers, scabs, wounds.