''Cullen'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of legumes (

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Fabaceae) native to

tropical The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

, subtropical and

arid A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most ...

regions of

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...

and Australia. Despite the origin implied in the name of the constituent

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

Cullen americanum Cullen may refer to: Places Canada *Cullen, Saskatchewan, a former hamlet in Benson No. 35 Rural Municipality Ireland * Cullen, County Cork, a village near Boherbue, County Cork * Cullen, County Tipperary, a small village in County Tipperary Sco ...

'', legumes of this genus are not native to the

Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with th ...

. ''Cullen'' was previously included in broad definitions of the allied genus ''

Psoralea ''Psoralea'' is a genus in the legume family (Fabaceae) with over 60 closely related species native to southern Africa. In South Africa they are commonly referred to as fountainbush (English); fonteinbos, bloukeur, or penwortel (Afrikaans); and u ...

''.

References

Psoraleeae Fabaceae genera {{Faboideae-stub