A straggling, weak plant with thin stems and whorls of small leaves at the nodes. The white flowers are tiny, but often produced in great masses so that where the plant is luxuriant they are very conspicuous among the other plants of a fen or marsh.
All names: Galium palustre L.; Galium palustre agg. L. sensu lato
NBN Atlas mapping: Species account : NBN Atlas UK Species Observations database
iNaturalist: Species account : iNaturalist World Species Observations database