Alluaudia ascendens is a species of Alluaudia endemic to Madagascar. It can reach 15 m in height. Its local name is fantsiolotse.

Range and habitat

Alluaudia ascendens is native to Anosy region of southern Madagascar, where it is found in Taolagnaro, Andohahela, Ankodida, Behara-Tranomaro, and Ifotaky. The species' estimated extent of occurrence (EOO) is 2,417 km<sup>2</sup>, and its estimated area of occupancy (AOO) is 44 km<sup>2</sup>