Pachypodium geayi
Encyclopedia
Pachypodium geayi is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of Pachypodium
Pachypodium
Pachypodium is a genus of succulent spine-bearing trees and shrubs, native to Africa. It belongs to the dogbane family, Apocynaceae. Pachypodium comes from a Latin form from Greek pachus and podion , hence meaning thick-footed.-Genus characteristics:All Pachypodium are succulent plants that...

originated from Southwest Madagascar
Madagascar
The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

. It has a metallic grey pachycaule
Pachycaule
Pachycauls are plants with disproportionately thick stems for their length and few branches. The word is derived from the Greek παχυκαυλ, meaning "thick stem"...

 trunk. Leaves are thin and grey-green, with a bright pink mid-rib. The plant has white flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s. Pachypodium geayi is one of the largest of the Madagascar species.
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