Gentianaceae - Gentian family

Mostly annual, biennial or perennial herbs, rarely (Anthocleista only in our area) trees or shrubs. Stipules 0. Leaves simple, opposite (in ours). Inflorescence a cyme or raceme, sometimes flowers solitary, fasciculate or verticillate. Flowers bisexual (sometimes unisexual), actinomorphic, (rarely zygomorphic). Calyx tubular with (2-)4-5 or rarely 6-12 lobes. Corolla gamopetalous, 3-5(-16)-lobed. Stamens as many as corolla lobes. Ovary superior, 1- or 2-locular. Fruit usually a capsule, rarely a berry.

Worldwide: 89 genera and c.1200 species, ± cosmopolitan but mainly temperate and subtropical

Burundi: 10 genera and 22 taxa.