Anemone Isopyrum

Paropyrum anemonoides is the sole species of herbaceous perennial flowering plants within the monotypic genus Paropyrum, which is in the subfamily Thalictroideae in the family Ranunculaceae.

Paropyrum favors high-elevation grassy slopes, gravelly soil, and rocky areas, often within forests. Paropyrum often shares the same habitats within their native ranges common with Paraquilegia, resulting in Paropyrum often being mistaken for Paraquilegia.

Since the species was first described as Isopyrum anemonoides in 1842, there have been repeated revisions to the species's taxonomy. There has also been confusion regarding its synonymy with other names. The species now accepted as Paropyrum anemonoides has been considered part of the genera Isopyrum, Paraquilegia, and Thalictrella, with other names previously described as separate species now synonymized under the Paropyrum placement. In 1920, the British botanists James Ramsay Drummond and John Hutchinson published an article, "A Revision of Isopyrum (Ranunculaceae) and Its Nearer Allies", in the Bulletin of Miscellaneous Information. They described a new genus, Paraquilegia, to contain species they deemed morphologically inconsistent with other Isopyrum species. They also identified Isopyrum uniflorum, as described by the British botanists James Edward Tierney Aitchison and William Hemsley in 1875, as a synonym for I. anemonoides. Drummond and Hutchinson moved this species to Paraquilegia, giving it the name Paraquilegia uniflora. In 1811, the German botanist Carl Ludwig Willdenow described Aquilegia anemonoides. Drummond and Hutchinson moved this species to Paraquilegia with the name P. grandiflora in 1920. This name was corrected to Paraquilegia anemonoides by Ulbrich in 1922, its currently accepted name. …