Aristida adscensionis

Synonyms: Aristida adscensionis subsp. coerulescens (Desf.) Murb., Aristida coerulescens Desf.

Annual xerophytic grass.

The distinction between annuals and perennials in the tropics and subtropics is not always very clear and often appears to be a facultative difference of little taxonomic consequence. This is particularly true in Aristida adscensionis where the separation of perennial plants as Aristida caerulescens cannot be justified. (Encyclopedia of Life)