|Evergreen, low-growing, vigorous perennial with prostrate stems. Leaves are lance shaped, grayish green 1/2 to 3/4 inch long. White flowers are cup shaped, 1/2 to 3/4 inch across, and borne singly or in few flowered cymes.
Very nice in rock gardens. Beware: this hardy, little ground cover may be so happy in moist gardens that it seems impossible to get rid of! Sometimes used as a lawn substitute.