Greek eu — good, stoma — mouth, referring to the wide-mouthed flowers.
Waxy-blue annual or biennial herbs. Leaves opposite. Flowers mostly white or blue, solitary or in clusters. Calyx with a strong ridge. Corolla with 5-6 lobes. Fruit an ellipsoidal, many-seeded capsule. [Lisianthus P. Browne, sometimes spelt Lisianthius]
Popular as florists' flowers and sold in a range of colours, sometimes double.
Erect herb with simple, entire, decussate, waxy-blue leaves and spectacular bell-shaped flowers in simple colours.
3 species from southern North America to N South America.
Source: (2002). Gentianaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.