Spiraea ulmaria

Natural History.
     Hard hack

General.
     Burning and pressure in oesophagus, feels contracted but not made worse by swallowing. MORBIDITY CONSCIENTIOUS. Relieves irritation of the urinary passages; influences the prostate gland; checks gleet and prostatorrhoea; has been used for eclampsia, epilepsy, and hydrophobia. Bites of mad animals. Heat in various parts. (Salicylic acid is found in Spiraea.)