5; see text Gloxinia is a genus containing three species of tropical rhizomatous herbs in the flowering plant family Gesneriaceae.

[4] The analyses demonstrated that the genera Anodiscus and Koellikeria, each with a single species, were more closely related to Gloxinia perennis than were any of the other species included in Gloxinia by Wiehler, several of which proved to be more closely related to other genera (particularly Diastema, Monopyle, and Phinaea).

As a result of this work, most former Gloxinia species have been transferred to other genera while Koellikeria erinoides and Anodiscus xanthophyllus have been transferred into a much more narrowly defined Gloxinia consisting of only three species, all of them characterized by having a raceme-like flowering stem.

Gloxinia perennis forms fertile hybrids with species of Seemannia, which was the primary reason for uniting the two genera in the past.

[5] Similarly, "hardy gloxinia" is Incarvillea delavayi, a member of the Bignoniaceae.