''Xerochlamys undulata'' is a shrub in the family

Sarcolaenaceae The Sarcolaenaceae are a family of flowering plants endemic to Madagascar. The family includes 79 species of mostly evergreen trees and shrubs in ten genera. Recent DNA studies indicate that the Sarcolaenaceae are a sibling taxon to the family ...

. It is endemic to Madagascar.

Description

''Xerochlamys undulata'' grows as a shrub with

pubescent The adjective pubescent may describe: * people or animals undergoing puberty * plants that are hairy, covered in trichomes * insects that are covered in setae In biology, setae (singular seta ; from the Latin word for "bristle") are any of a ...

twigs. Its leaves are bright green above, dull green on the underside. They are elliptic in shape and measure up to long. The tree's flowers are solitary or in inflorescences of two flowers, with yellow to white petals. The roundish to

ovoid An oval () is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas (projective geometry, technical drawing, etc.) it is given a more precise definition, which may include either one or ...

fruits measure up to long with brown seeds.

Distribution and habitat

''Xerochlamys undulata'' is only found in the central regions of

Ihorombe Ihorombe is a region in Madagascar. It borders Haute Matsiatra region in north, Atsimo-Atsinanana in east, Anosy in south and Atsimo-Andrefana in west. The capital is Ihosy and the population was 418,520 in 2018. The area of Ihorombe is and ...

and

Atsimo-Andrefana Atsimo-Andrefana is a region of Madagascar. It borders Menabe in north, Amoron'i Mania and Haute Matsiatra in northeast, Ihorombe and Anosy in east and Androy in southeast. The capital is Toliara and the population was 1,799,088 in 2018. Atsimo ...

. Its habitat is on sandstone from to altitude. One population of the plants occurs in Isalo National Park. The preliminary status of the species is endangered.

References

undulata Endemic flora of Madagascar Plants described in 2009 {{Sarcolaenaceae-stub