Rubiaceae (weeds) - (madder family)
The family includes more than 10,000 species of shrubs, trees and some vines and herbs. Cultivated members include, for example coffee. A number of species are agricultural weeds, e.g. those of the genus Galium. The plants have often simple, opposite and evergreen leaves. The flowers are typically small, may be arranged in clusters and are nearly always bisexual.
The following genera are currently entered in the system: