“Cardamine trifolia is an attractive, evergreen groundcover for the shade. This little charmer has three palmate, dark green leaflets that rise to about 6 inches and are topped in spring with short spikes of small white cupped flowers. This cardamine spreads to an almost perfect circle that is about 12 inches across making for a very tidy appearance. Once Cardamine trifolia is established it will tolerate drought conditions and dry shade.” (credit https://www.greatplantpicks.org/plantlists/view/285 )