The rest came, uninvited, from Europe. Of these wildflowers, rough-fruited cinquefoil (Potentilla recta) ... an invasive species that "needs" to be controlled rather than admired.

Potentilla is a shrub that takes minimal care, is very hardy and resilient, looks good — and blooms — all summer, and has a wide range of uses in the landscape.

How to grow: Potentilla. John Hoyland admires a plant with pretty, pleated leaves and shallow flowers. ... It is easy to divide potentillas in early spring, or collect the seed from species.

Heredity - Evolution in closely adjacent plant populations VI. An entomophilous species, potentilla erecta, in two contrasting habitats ...