| synonyms =
}}Pentachlaena orientalis is a tree in the family Sarcolaenaceae. It is endemic to Madagascar.
Description
Pentachlaena orientalis grows as a tree up to {{convert|30|m|-1}} tall with a trunk diameter of up to {{convert|90|cm|0|abbr=on}}. Its leaves are elliptic and measure up to {{convert|18|cm|0|abbr=on}} long.[2]Distribution and habitat
Pentachlaena orientalis is known from the eastern regions of Alaotra-Mangoro, Analanjirofo and Atsinanana. Its habitat is humid forest from sea level to about {{convert|2000|m|-2|abbr=on}} altitude. Some subpopulations of the species occur in protected areas.References
1. ^1 {{cite journal | last1 = Lowry II | first1 = Porter P. | last2 = Haevermans | first2 = Thomas | last3 = Labat | first3 = Jean-Noël | last4 = Schatz | first4 = George E. | last5 = Leroy | first5 = Jean-François | last6 = Wolf | first6 = Anne-Elizabeth | date = Jan 2000 | title = Endemic families of Madagascar. V. A synoptic revision of Eremolaena, Pentachlaena and Perrierodendron (Sarcolaenaceae) | url = https://www.researchgate.net/publication/250927840 | journal = Adansonia | publisher = Publications Scientifiques du Muséum national d'Histoire naturelle | location = Paris | series = 3 | volume = 22 | issue = 1 | pages = 16, 19 | accessdate = 19 Dec 2016 }}
}}{{Taxonbar|from=Q15581670}}{{Malvales-stub}} 4 : Sarcolaenaceae|Endemic flora of Madagascar|Trees of Madagascar|Plants described in 1973