Rubia peregrina (Rubia peregrina ) is a member of the coffee family and is native to Mediterranean Europe and Africa.It produces greenish-yellow flowers that are insect-pollinated; these flowers then mature into green berries that eventually ripen to black.属名の "Rubia "はラテン語で赤を意味し、いくつかの種(特にRubia tinctorum)が赤い染料を作るのに使われてきたことにちなむ。