''Caroxylon aphyllum'' (commonly known as the ganna or kanna bush) is a small

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), ...

of shrub 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 ...

Amaranthaceae Amaranthaceae ( ) is a family of flowering plants commonly known as the amaranth family, in reference to its type genus '' Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, maki ...

. It grows in the arid

Karoo The Karoo ( ; from the Afrikaans borrowing of the South Khoekhoe Khoemana (also known as !Orakobab or Korana) word is a semidesert natural region of South Africa. No exact definition of what constitutes the Karoo is available, so its extent is ...

region of

southern Africa Southern Africa is the southernmost region of Africa. No definition is agreed upon, but some groupings include the United Nations geoscheme for Africa, United Nations geoscheme, the intergovernmental Southern African Development Community, and ...

. It typically grows in deep, dusty, saline soils, in valley bottoms and dried river plains. The shrub is so common that its name has become a designation of a certain type of Karoo ecosystem - "gannaveld" (sometimes called "vlakteveld") - and even of a local government - Kannaland Local Municipality. This species has previously been classified as ''Salsola aphylla''.

References

Amaranthaceae Karoo {{Amaranthaceae-stub