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Annual or perennial herbs. Stems 4-ridged. Leaves well-developed. Flowers 4-5-merous in lax few-many-flowered cymes, rarely solitary. Calyx 4-5-lobed, tube very short. Corolla 4-5-lobed with a very short tube, lobes with 1-2 basal glandular nectaries within. Stamens 4-5, anthers without glands (in ours). Ovary ellipsoid, 1-locular. Stigma 2-lobed. Capsule septicidally 2-valved. Seeds numerous. Worldwide: 50 species in northern temperate zones, Africa and Malesia Zambia: 5 taxa. |
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| Species | FZ divisions | Provinces | Content |
| eminii Engl. | N | N | |
| fwambensis N.E.Br. | N | ||
| intermixta A.Rich. | N | N | |
| quartiniana A. Rich. | W | Nw | |
| welwitschii Engl. | N,W,E | Nw,N,Mc,E,W | Description, Image |
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