Synonym: Acnistus miersi, Acnistus miersii, Acnistus plumieri, Acnistus ramiflorus.
English: Hollowheart; Wild tobacco.
Spanish: Gallinero, = henhouse; Mata-gallina, =chicken-killer; Fruta-de-sabiá, =thrush-fruit; Siyou; Bastard sirio; Galán arbóreo; Tabaco de monte, = mountain tobacco; Nigüito; Marieneira; Güitite; Tabak djab, = devil's tobacco.
Genus: 1 species.

TaxonomyFormerly included in the genus Iochroma. The case of Acnistus arborescens is remarkable, considering the vicissitudes of its long and varied taxonomic history; it has received 29 botanical names with 17 different epithets associated to 6 generic names.
Genus synonyms: Acnistus, Atropa, Brachistus, Capsicum, Cestrum, Dunalia, Ephaiola, Eplateia, Fregirardia, Lycium, Pederlea. Dunalia is most closely related to Acnistus.