This case of rheumatic complaints shows the analogy of the physical and mental symptoms not only to the remedy proving of the freshwater alga but also to its botanical features and environment. So the feeling in the musculoskeletal system of stiffness and being clenched reflects the progressive chalk coating experienced by the aquatic plant. The purifying potential of Chara intermedia is expressed in the patient as compulsive washing, which is overcome during homeopathic treatment. This process of purification, typical of Chara, is described in detail.
Keywords: Chara intermedia, compulsive washing, depression, osteoarthritis, rheumatism, tendomyopathy