Abstract:Objective Taxonomic studies on a fidaxomicin-producing strain N12W0304 which was isolated from the medicinal plant Agrimonia pilosa Ledeb. Methods The strain N12W0304 was identified based on morphological, physiological and biochemical characteristics, cell wall components, as well as the sequence analysis of 16S rDNA. Results The polyphasic taxonomical studies showed that the strain N12W0304 belonged to Actinoplanes sp. Conclusion This is the first report of a fidaxomicin-producing strain isolated from Agrimonia pilosa Ledeb.