http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:708422-1

Anemone × hybrida (L.H.Bailey) Makino is a synonym of the artificial hybrid Eriocapitella × hybrida (L.H.Bailey) Christenh. & Byng

The observations moved with this taxon swap are all Eriocapitella × hybrida (L.H.Bailey) Christenh. & Byng
...

Notes: The name Anemone hybrida Miq. ex Pritz. is also synonym of Pulsatilla halleri ssp. halleri

http://www.catalogueoflife.org/col/details/species/id/dcb773e12af756232dd7b15ccfbdb014

Most garden cultivars of Chinese or Japanese Anemone are in fact horticultural hybrids that involved Eriocapitella japonica (syn. Anemone japonica), Eriocapitella hupehensis (syn. Anemone hupehensis), Eriocapitella tomentosa (syn. Anemone tomentosa) and Eriocapitella vitifolia (Anemone vitifolia).

Even some wild growing populations, especially of Eriocapitella japonica in China are probably the result of escaped garden plants.

http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:77184419-1

http://www.catalogueoflife.org/col/details/species/id/4f5a5e90b635a87e4e8ea491ce8ec8c3