Dracaena angolensis (synonym Sansevieria cylindrica), commonly known as African spear or the spear sansevieria, is a succulent plant native to Angola in Southern Africa. For years, it was placed within the genus Sansevieria (snake-plants), a specific name which is still used synonymously by some; in the 21st century, Sansevieria became part of Dracaena (dragon-trees), after improved testing methods, physical comparisons, and other analyses found sufficient commonalities between the two genera to warrant subsumption.

The genus Dracaena is a part of the Asparagaceae (asparagus family)—i.e., they are closely aligned with and related to such groups as the Asparagus, Agave, Beaucarnea (ponytail "palms"), Chlorophytum (spider-plants), Camassia, Dasylirion (sotols), Hesperaloe (Texan or red yuccas) and Yucca (Joshua trees).

...