Rubia peregrina, the common wild madder,[1] is a herbaceous perennial plant species belonging to the bedstraw and coffee family Rubiaceae.

The specific epithet is the Latin adjective peregrinus, -a, -um meaning "foreign, alien, exotic, strange."

The stem is woody, hairless, square and climbing and reaches on average 50–250 centimetres (20–98 in) long.

The small flowers have five petals and are pale green-yellowish, about 5–7 mm in diameter,[2] arranged at the top of long stalks.

[2] It is mainly present in Mediterranean Europe (Portugal, Spain, France, Italy, Greece and former Yugoslavia), in Great Britain and in North Africa.