It was supposed that R. amurensis should be the subspecies of R. ciliaris, and R. japonensis should be the variety of R. ciliaris.

• 建议将毛叶鹅观草作为纤毛鹅观草的亚种，而竖立鹅观草作为纤毛鹅观草的变种处理较为适宜。