Cochlearia danica aka Danish Scurvy Grass

Cochlearia danica, also known as Danish scurvygrass, is a flowering plant in the family Brassicaceae. It is a salt-tolerant coastal plant that can be found flourishing along roads and motorways in Europe, particularly under crash barriers in the central reservation. Its resilience to the effects of salts distributed by gritters in winter and the ability of its small seeds to be spread by the high speed of cars in the fast lane have contributed to its success. The plant is rich in vitamin C and was reportedly chewed by sailors to avoid scurvy. The mauve flowers of the plant are typically 4-5mm in diameter. This untidy biennial plant is usually 15 to 40 cm tall and best admired from a distance. Its succulent lower leaves, which range in color from dark green to red and even deep purple, are held close to the ground. The fragrant, four-petalled flowers are typically white but may have a mauve or purple tinge and are 8 to 15mm across. After the short-lived petals have fallen from the flowers, roundish seed pods swell and ripen. Common Scurvy-grass can be found throughout Britain and Ireland as well as in coastal regions of northern and central Europe, and it is occasionally found in some mountainous inland locations. In addition to its wild habitat, Danish Scurvy Grass is also a super rare houseplant that requires regular watering to thrive. It does best in abundant sunlight and should be positioned less than 3 feet from a window.