Rubieae is a tribe

Tribe (biology)

In biology, a tribe is a taxonomic rank between family and genus. It is sometimes subdivided into subtribes.Some examples include the tribes: Canini, Acalypheae, Hominini, Bombini, and Antidesmeae.-See also:* Biological classification* Rank...

 of flowering plant

Flowering plant

The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...

s in the Rubiaceae

Rubiaceae

The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...

 family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 and contains about 950 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 in 14 genera

Genera

Genera is a commercial operating system and development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the MIT AI Lab's Lisp machines which Symbolics had used in common with LMI and Texas Instruments...

. The genus Galium

Galium

Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, with 617 known species occurring in the temperate zones of both the Northern and Southern Hemispheres. Most species are known as bedstraw. G...

is responsible for more than two thirds of the species in the tribe. The second largest genus is Asperula

Asperula

Asperula is a genus of flowering plants in the Rubiaceae family. It contains about 200 species and has a wide distribution area from Europe, northern Africa, temperate and subtropicale Asia to Australasia.-Species:...

, which contains about 200 species. Unlike the rest of the Rubiaceae

Rubiaceae

The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...

 family, the tribe contains predominantly perennial and annual herbs with pseudowhorls of leaves and leaflike stipules and is centered in temperate and tropical-mountain regions.

Genera

Currently accepted genera

• Asperula
  Asperula
  Asperula is a genus of flowering plants in the Rubiaceae family. It contains about 200 species and has a wide distribution area from Europe, northern Africa, temperate and subtropicale Asia to Australasia.-Species:...
  
  L.
• Callipeltis Steven
• Crucianella
  Crucianella
  Crucianella is a genus of flowering plants in the Rubiaceae family. The species are annuals herbs found from the Mediterranean to Central Asia and the Arabian Peninsula.-Species:*Crucianella aegyptiaca L....
  
  L.
• Cruciata Mill.
• Didymaea Hook.f.
• Galium
  Galium
  Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, with 617 known species occurring in the temperate zones of both the Northern and Southern Hemispheres. Most species are known as bedstraw. G...
  
  L.
• Mericarpaea Boiss.
• Microphysa Schrenk
• Phuopsis Steven
• Rubia
  Rubiá
  aRubiá is a municipality in the Spanish province of Ourense. It has a population of 1734 and an area of 101 km²....
  
  L.
• Sherardia
  Sherardia
  Sherardia is a monotypic genus containing a single species, Sherardia arvensis , which is a flowering plant in the Rubiaceae family. It is native to Europe, northern Africa and southwest Asia. Sherardia arvensis is closely related to the bedstraws...
  
  L.
• Valantia L.

Former genera

• Relbunium (Endl.) Hook.f. > Galium
  Galium
  Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, with 617 known species occurring in the temperate zones of both the Northern and Southern Hemispheres. Most species are known as bedstraw. G...
  
  
• Warburgina Eig > Callipeltis