It has blue-green glaucous leaves, and small, delicate white flowers.
The plant is a common pasture weed native to Europe.
It has been introduced elsewhere, including Australia and western North America, but it is not particularly invasive or competitive.
It prefers moist places, such as grassy floodplains near marshes and coastal hills.
The plant grows well in bare, sandy, gravelly soils, such as those at shorelines or on overgrazed fields.