The mossy sandwort (Moehringia muscosa) belongs to Caryophyllaceae (the Carnation family). It is a perennial herb that is native to Europe, the Alps, the Pyrenees and the Apennine. This herb grows in shady damp rocks, 900-2300 m elevation, and can reach 10-20 cm in height. The stems are weak and very thin. The leaves are grassy green, sessile and narrowly linear to filiform. The white flowers bloom in clusters of 3-6 from May to September. They are tetramerous, petals as long as sepals.