Synonyms: Barkhausia tenuifolia (homotypic); Berinia tenuifolia (homotypic); Brachyderea tenuifolia (homotypic); Chondrilla baicalensis (heterotypic); Crepidifolium altaicum (heterotypic); Crepidifolium diversifolium var. diversifolium; Crepidifolium tenuifolium (homotypic); Crepidifolium tenuifolium var. tarbagataicum; Crepidifolium tenuifolium var. tenuifolium; Crepis altaica (heterotypic); Crepis baicalensis (heterotypic); Crepis elegans (homotypic); Crepis pectinata (heterotypic); Crepis pulcherrima (heterotypic); Crepis tenuifolia (heterotypic); Crepis tenuifolia tenuifolia; Crepis tenuifolia var. altaica (heterotypic); Geblera prenanthoides; Geblera tenuifolia (homotypic); Hieracioides tenuifolia (homotypic); Lagoseris tenuifolia (homotypic); Youngia altaica (heterotypic); Youngia diversifolia var. diversifolia; Youngia diversifolia var. lanciloba (heterotypic); Youngia diversifolia var. tenuiloba (heterotypic); Youngia tenuifolia (homotypic); Youngia tenuifolia altaica (heterotypic); Youngia tenuifolia tenuifolia; Youngia tenuifolia typica; Youngia tenuifolia var. lanciloba (heterotypic); Youngia tenuifolia var. tenuiloba (heterotypic)