Rubieae is a

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide use of the term in English is in the discipline of anthropology. The definition is contested, in part due to conflict ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rubiaceae Rubiaceae () is a family (biology), family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with Petiole ( ...

and contains 970

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

in 15

genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...

. The genus ''

Galium ''Galium'' is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, occurring in the temperate zones of both the Northern and Southern Hemispheres. Some species are informally known as bedstraw. Over 600 species of ' ...

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

Asperula ''Asperula'', commonly known as woodruff, is a genus of flowering plants in the family Rubiaceae. It contains 91 species and has a wide distribution area from Europe, northern Africa, temperate and subtropical Asia to Australasia Australasi ...

'', which contains about 200 species. Unlike the rest of the 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 names *''

'' L. (191 sp) *''

Callipeltis ''Callipeltis'' is a genus of flowering plants in the family Rubiaceae. It was originally described in 1829.Steven, Christian von. 1829. Nouv. Mém. Soc. Imp. Naturalistes Moscou 1: 275. The genus is found in Spain, North Africa, the Middle East ...

'' Steven (3 sp) *''

Crucianella ''Crucianella'' (common name crossworts) is a genus of flowering plants in the family Rubiaceae. The species are annual herbs found from the Mediterranean to Central Asia and the Arabian Peninsula. One species ('' C. angustifolia'') is naturaliz ...

'' L. (31 sp) *''

Cruciata ''Cruciata'' is a genus of flowering plants in the family Rubiaceae. It is found in Europe, northern Africa, and across southern and central Asia from Turkey to the western Himalaya and north to the Altay region of Siberia. Species * '' Crucia ...

'' Mill. (8 sp) *''

Didymaea ''Didymaea'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Mexico to Central America. Species *'' Didymaea alsinoides'' (Cham. & Schltdl.) Standl. - Mexico *'' Didymaea ixtepejiensis'' Borhidi & E.Martinez - O ...

'' Hook.f. (8 sp) * × ''Galiasperula'' Ronniger (1 sp) *''

'' L. (631 sp) *''

Kelloggia ''Kelloggia'' is a plant genus in the bedstraw and madder family, Rubiaceae. Its two species have a discontinuous distribution; one species is native to Bhutan and China (Sichuan and Yunnan), the other to the western United States. Species , Pla ...

Torr. John Torrey (August 15, 1796 – March 10, 1873) was an American botanist, chemist, and physician. Throughout much of his career, he was a teacher of chemistry, often at multiple universities, while he also pursued botanical work, focusing on t ...

Benth. George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studie ...

Hook.f. Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For 20 years he served as director of the Ro ...

(2 sp) *'' Mericarpaea'' Boiss. (1 sp) *''

Microphysa ''Microphysa elongata'' is a species of flowering plant in family Rubiaceae. It is a perennial native to Kazakhstan, Kyrgyzstan, Uzbekistan, and Xinjiang in Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, ...

'' Schrenk (1 sp) *''

Phuopsis ''Phuopsis'' is a genus of flowering plants belonging to the family Rubiaceae. Its native range is Caucasus The Caucasus () or Caucasia (), is a region spanning Eastern Europe and Western Asia. It is situated between the Black Sea and the ...

'' Steven (1 sp) *'' Pseudogalium'' L.E Yang, Z.L.Nie & H.Sun (1 sp) *''

Rubia ''Rubia'' is the type genus of the Rubiaceae family of flowering plants, which also contains ''Coffea'' (coffee). It contains around 80 species of perennial scrambling or climbing herbs and subshrubs native to the Old World. The genus and it ...

'' L. (83 sp) *''

Sherardia ''Sherardia'' is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, ''Sherardia arvensis'', the (blue) field madder, which is widespread across most of Europe and northern Africa as well as southw ...

'' L. (1 sp) *''

Valantia ''Valantia'' is a genus of flowering plants in the family Rubiaceae Rubiaceae () is a family (biology), family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, o ...

'' L. (7 sp) Synonyms *× ''Asperugalium'' P.Fourn. = × ''Galiasperula'' *''Relbunium'' ( Endl.)

= ''

'' *''Warburgina'' Eig = ''

References

External links

* *
World Checklist of Rubiaceae
Rubioideae tribes {{Rubioideae-stub