Gentianella campestris, common name Field Gentian, is a herbaceous biennial flowering plant in the Gentianaceae (gentian family).
Gentianella campestris is a plant of small size, reaching on average 3–30 centimetres (1.2–11.8 in) in height. It has erect stems, simple or branched at the base and the leaves are opposite, ovate-lanceolate and unstalked. The flowers are 15–30 millimetres (0.59–1.18 in) in size. Their color is usually bluish-purple, but may be white, pink or lilac, with petals and sepals fused (gamopetalous and gamosepalous). There are four petals, ciliate at the base. There are also four sepals, which differ in size (two are wide and two narrow). The flowering period extends from June to October. The fruit is a capsule.
This plant prefers moderately moist to rather dry substrates and neutral or acid soils of alpine meadows, lawns, pastures, forest clearings and roadsides, at an altitude of 1,000–2,300 metres (3,300–7,500 ft) above sea level.