Pogonolobus is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of flowering plants in the family 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 ,...

. The genus is monotypic

Monotypic

In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...

, being represented by the single species Pogonolobus reticulatus (formerly known as Coelospermum reticulatum or Caelospermum reticulatum). It is endemic to eastern and northern Meganesia. The genus is closely related to the genera Coelospermum, Gynochthodes, Morinda

Morinda

Morinda is a genus of flowering plants in the madder family, Rubiaceae. The generic name is derived from the Latin words morus, meaning "mulberry," and indica, meaning "of India," referring to the shape of the fruits. -Description:...

, Sarcopygme and Syphonandrium. Morinda

Morinda

Morinda is a genus of flowering plants in the madder family, Rubiaceae. The generic name is derived from the Latin words morus, meaning "mulberry," and indica, meaning "of India," referring to the shape of the fruits. -Description:...

is especially closely related, and is likely to comprise a paraphyletic genus that encompasses Pogonolobus. Its natural habitat is dry rainforest and moister types of Eucalypt

Eucalypt

Eucalypts are woody plants belonging to three closely related genera:Eucalyptus, Corymbia and Angophora.In 1995 new evidence, largely genetic, indicated that some prominent Eucalyptus species were actually more closely related to Angophora than to the other eucalypts; they were split off into the...

 woodland

Woodland

Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...

. The plant is an important source of dye for Aboriginal people.