Danish Scurvygrass (Cochlearia danica) is a salt tolerant plant which has benefited from the salt put on out roads in winter. Like many seaside plants it has adapted to living in the harsh environment that salt air creates. Our use of salt and the small light seeds has meant our cars provide both the environment and the means of spreading. Now you know what to look for you will see it often. If you keep your eye out in the spring.