Perennial herbs or soft shrubs. Leaves small, entire or obscurely toothed. Flowers solitary or in few-several-flowered cymes in the axils of leaves along the upper half of the stems Calyx 13-15-nerved, subequally 5-toothed. Corolla scarcely or well exserted from the calyx; upper lip short, broad, emarginate; lower longer, 3-lobed. Stamens 4. Nutlets smooth. Worldwide: 30 species in temperate and warm regions Rwanda: 0 taxa. |
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