Annual or perennial herbs, sometimes subshrubby. leaves
alternate, rarely subopposite. Cymes spike-like, usually
scorpioid, terminal or pseudoaxillary, simple or branched; rarely flowers solitary, supra-axillary. Flowers bisexual, 5-merous. Corolla
salver-shaped or funnel-shaped, white, yellow or blue. Stamens included. Ovary 4-celled, entire or subentire. Style terminal. Fruit dry, usually splitting at maturity
into four 1-seeded nutlets, free or cohering in pairs or remaining entire and 1-seeded by abortion.
Worldwide: c. 250 species, tropical and temperate areas
Zimbabwe: 2 cultivated taxa.
|No image of a cultivated species but there is an image of a native or naturalised species