| Noun | 1. | Moehringia - low-growing herbs widely distributed in temperate and arctic northern hemisphere: sandworts; distinguished from members of the genus Arenaria mainly by having 4- rather than 5-petaled flowersMoehringia mucosa, sandwort - loosely matted plant with mosslike foliage studded with tiny starry 4-petaled white blossoms; mountains of central and southern Europe | |