Danish Scurvygrass flowers early in the year, with small pale lilac flowers followed by egg-shaped pods. Its natural habitat is salt marshes, but it has spread inland, especially along roadsides, aided by the salting of roads in winter.
It differs from the similar-looking Common Scurvygrass by having kidney-shaped leaves higher up the stem and ivy-shaped leaves lower down.

Danish Scurvygrass leaves: ivy-shaped lower down the stem and kidney-shaped higher up