Appearance
''Galium verum'' is a low scrambling plant, with the stems growing to 60–120 centimetres long, frequently rooting where they touch the ground. The leaves are 1–3 cm long and 2 millimetres broad, shiny dark green, hairy underneath, borne in whorls of 8–12. The flowers are 2–3 mm in diameter, yellow, and produced in dense clusters. This species is sometimes confused with ''Galium odoratum'', a species with traditional culinary uses.Naming
Many varietal and subspecific names have been proposed, but only four are currently recognized:⤷ ''Galium verum'' subsp. ''asiaticum'' T.Yamaz - China, Korea, Japan, Russian Far East
⤷ ''Galium verum'' subsp. ''glabrescens'' Ehrend. - Iran, Iraq, Turkey, Syria
⤷ ''Galium verum'' subsp. ''verum'' - most of species range
⤷ ''Galium verum'' subsp. ''wirtgenii'' Oborny - Central and eastern Europe plus Western Siberia

Uses
In the past, the dried plants were used to stuff mattresses, as the coumarin scent of the plants acts as a flea killer. The flowers were also used to coagulate milk in cheese manufacture and, in Gloucestershire, to colour the cheese double Gloucester.The plant is also used to make red madder-like and yellow dyes.
In Denmark, the plant is traditionally used to infuse spirits, making the uniquely Danish drink '.
References:
Some text fragments are auto parsed from Wikipedia.