I think that it is you may want to do more research though.
Potentilla angelliae was created in 1987.
Potentilla cottamii was created in 1987.
Potentilla hickmanii was created in 1900.
Potentilla cristae was created in 1990.
Potentilla recta was created in 1753.
Potentilla basaltica was created in 1984.
The best time to trim a potentilla, and any other summer-flowering shrub, is in the spring before the potentilla buds out.
potentilla
Potentilla fruticosa is a hardy flowering bush. It grows in cool temperate areas.
Evergreen
what is evergreen tree
potentilla si the name for 31 across as far as I can make out.