Herbs, often glandular-hairy. Leaves either 1 or several. Inflorescence of open axillary cymes. Calyx divided to the base into 5 segments. Corolla zygomorphic, gamopetalous, 5-lobed, ± 2-lipped. Stamens: anterior 2 fertile, lateral staminodes usually present, the posterior often 0. Ovary superior, usually 1-locular. Ovules numerous. Fruit a ± cylindric capsule. Seeds numerous, small. Worldwide: 141 genera and 2,900 species, tropical. Zimbabwe: 1 genus and 12 taxa. |
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