Abstract
Korean folk medicine 'JoPabNaMu' has been mainly used to cure removal of fever and neuralgia. With regard to the botanical origin of 'JoPabNaMu', it has been considered to designate the stem of Spiraea species (Rosaceae), but there was no pharmacognostical confirmation on it. To clarify the botanical origin of 'JoPabNaMu', the anatomical characteristics of the branch of Spiraea species growing wild in Korea were studied. As a result, 'JoPabNaMu' was proved to be the branch of Spiraea prunifolia var. simpliciflora.