''Crotonogyne'' is a

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

of the

spurge ''Euphorbia'' is a large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. Euphorbias range from tiny annual plants to large and long-lived trees, with perhaps the tallest being '' Euphorbia ampliphyl ...

family (

Euphorbiaceae Euphorbiaceae (), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of Euphorbia, the type genus of the family. Most spurges, such as ''Euphorbia paralias'', ar ...

) first described as a genus in 1864. It is native to western and central

Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...

.Kew World Checklist of Selected Plant Families
/ref> It is

dioecious Dioecy ( ; ; adj. dioecious, ) is a characteristic of certain species that have distinct unisexual individuals, each producing either male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is ...

. ;Species ;Formerly included moved to other genera:

Cyrtogonone ''Cyrtogonone'' is a genus of shrubs or trees of the spurge family (Euphorbiaceae), first described as a genus in 1911. It contains only one known species, ''Cyrtogonone argentea'', native to tropical central Africa (Nigeria, Cameroon, Gabon, Eq ...

*''Crotonogyne argentea - Cyrtogonone argentea''

References

Aleuritideae Euphorbiaceae genera Dioecious plants {{Euphorbiaceae-stub