Billbergia is a genus of flowering plants in the family Bromeliaceae, subfamily Bromelioideae.

The Billbergia species are rosette-forming, evergreen perennials, usually epiphytic, occasionally terrestrial or lithotypic in habit.

In many funnels there are small biotopes with several species of animals and algae and aquatic plants.

The rough leaves are always reinforced on the edge (as with all genera of the Bromelioideae), with a spiked tip.

Flowers bisexual, sessile or conspicuously pedicellate; sepals free; petals free, threefold with a double perianth, with basal appendages, often spirally recurved at anthesis; stamens free or adnate to the petals, the anthers without appendages; inferior ovary.

An important characteristic that distinguishes them from other genera is that their petals curl up when they wither.

The fruits are multi-seeded berries, often heavily colored when ripe; red to blue dominate here.

[4] The genus, named for the Swedish botanist, zoologist, and anatomist Gustaf Johan Billberg (1772–1844), is divided into two subgenera: Billbergia and Helicodea.

They are native to forest and scrub, up to an altitude of 1,700 m (5,577 ft), in southern Mexico, the West Indies, Central America and South America, with many species endemic to Brazil.