The family takes its name from the genus Gentiana, named after the Illyrian king Gentius.

Gentiana is a genus of flowering plants belonging to the gentian family (Gentianaceae), the tribe Gentianeae, and the monophyletic subtribe Gentianinae.

Ecologically, partial myco-heterotrophy is common among species in this family with a few genera such as Voyria and Voyriella lacking chlorophyll and being fully myco-heterotrophic.

Voyria, the ghostplants, is a genus of nineteen species of herbaceous perennial plants, belonging to the family Gentianaceae.

However, Pirie et al. suggested that ancient vicariance cannot be ruled out as an explanation for the early origins of Exaceae across Africa, Madagascar and the Indian subcontinent unless a strong assumption is made about the maximum age of Gentianales.

Exaceae is a flowering plant tribe in the family Gentianaceae.

Anthocleista is a genus of tree- and shrub-like tropical plants in the gentian family, tribe Potalieae, subtribe Potaliinae.

Adenolisianthus is a plant genus in the gentian family (Gentianaceae), tribe Helieae.

Plants usually accumulate bitter iridoid substances; bicollateral bundles are present.

Iridoids are prevalent in the plant subclass Asteridae, such as Ericaceae, Loganiaceae, Gentianaceae, Rubiaceae, Verbenaceae, Lamiaceae, Oleaceae, Plantaginaceae, Scrophulariaceae, Valerianaceae, and Menyanthaceae.

Canscora is a genus 9 to 30 species of plants in the family Gentianaceae.

However, Pirie et al. suggested that ancient vicariance cannot be ruled out as an explanation for the early origins of Exaceae across Africa, Madagascar and the Indian subcontinent unless a strong assumption is made about the maximum age of Gentianales.

It takes its name from the family Gentianaceae, which in turn is based on the name of the type genus, Gentiana.

Centaurium (centaury) is a genus of 20 species in the gentian family (Gentianaceae), tribe Chironieae, subtribe Chironiinae.

Aripuana is a plant genus in the gentian family, tribe Helieae, subclade Symbolanthus.

Bartonia is a genus of the gentian family, tribe Gentianeae, subtribe Swertiinae.

Gentianaceae is a family of flowering plants of 87 genera and about 1600 species.

Cicendia is a small genus of plants in the gentian family which contains only two species of tiny yellow annual wildflowers.

Ecologically, partial myco-heterotrophy is common among species in this family with a few genera such as Voyria and Voyriella lacking chlorophyll and being fully myco-heterotrophic.

Partial myco-heterotrophy is common in the Gentian family, with a few genera such as Voyria being fully myco-heterotrophic; in photosynthetic orchids; and in a number of other plant groups.

Fagraea is a genus of plants in the family Gentianaceae.

Eustoma, commonly known as lisianthus or prairie gentian, is a small genus in the gentian family.

Frasera (green gentian) is a genus in the gentian family, native to North America and named for John Fraser, a Scottish botanist and colleague of Thomas Walter.

Gentianella is a plant genus in the gentian family (Gentianaceae).

Gentianopsis is a genus of flowering plants in the gentian family known commonly as fringed gentians.

Halenia (spurred gentian) is a genus of plant in family Gentianaceae.

The genus Macrocarpaea, with 105 species and two hybrids of 0.5 m herbs, shrubs, epiphytes and small trees to 10 m tall, is the largest genus of the tribe Helieae of the gentian family (Gentianaceae).

Klackenbergia is a genus of flowering plants belonging to the gentian family (Gentianaceae) and the tribe Exaceae.

Lomatogonium is a genus of 18 species in the family Gentianaceae, found in cool temperate to subarctic regions of Asia, with two species (''L.