''Didierea'' is a genus of

succulent In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...

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

Didiereaceae Didiereaceae is a family of flowering plants found in continental Africa and Madagascar. It contains 20 species classified in three subfamilies and six genera. Species of the family are succulent plants, growing in sub-arid to arid habitats. Seve ...

. It is dedicated to naturalist Alfred

Grandidier Grandidier is a surname. Notable people with the surname include: *Alfred Grandidier (1836–1921), French naturalist and explorer *Ernest Grandidier (1833–1912), French industrialist, naturalist, and art collector, brother of Alfred *Guillaume G ...

(1836-1921). Species of ''Didierea'' are

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 ...

, with male and female flowers on separate plants. The two accepted and known species are

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

, though there are some species which are no longer considered part of this genus, where they are found in the spiny forest–thicket ecosystem. They are listed in

CITES CITES (shorter acronym for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals from the threats of inte ...

appendix II, which means that their trade is restricted to protect natural populations.

Species

References

Didiereaceae Endemic flora of Madagascar Caryophyllales genera Dioecious plants Flora of the Madagascar spiny thickets Taxa described in 1880 Taxa named by Henri Ernest Baillon {{Caryophyllales-stub