Creeping Charlie

Pilea nummulariifolia runs rather than grows. Known as Creeping Charlie, it throws out thin trailing stems that root wherever they touch, carrying small round bright green leaves with a quilted, puckered surface that catches light in a way flat foliage does not.
It is a Caribbean forest floor plant, so it wants shade and steady moisture, and it is used as a fine-textured carpet under taller planting, in green wall pockets, and spilling out of interior planters.
Creeping Charlie closes a shaded floor quickly with a texture nothing coarser can match.