羽衣草属（学名：Alchemillal．），归于被子植物门（Angiospermae）蔷薇亚纲（Rosidae）蔷薇亚科（Rosoideae），同科者尚有棣棠花属（Kerria DC．）、悬钩子属（Rubus L.）等等。

Alchemilla is a genus of herbaceous perennial plants in the family Rosaceae, with the common name "lady's mantle" applied generically as well as specifically to Alchemilla mollis. There are about 300 species, the majority native to cool temperate and subarctic regions of Europe and Asia, with a few species native to the mountains of Africa and the Americas.