Perennial herbs, suffrutices or shrubs. Young branches, undersides of leaves and corollas with sessile glands. Leaves often held in a V and reflexed; margin entire. Calyx 2-lipped with 2 entire, broadly rounded lips, enlarging in fruit. Corolla with a 3-lobed lower lip and 2-lobed upper lip, dark reddish-brown to blackish-purple. Stamens 4, normally exserted. Style 2-lobed. Nutlets with a well-developed wing on the dorsal side. Worldwide: 19 species in tropical Africa Angola: 9 taxa. |
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| Species | Provinces | Content |
| aethiopica Kotschy ex Hook. f. subsp. stolzii (Robyns & Lebrun) Vollesen | ||
| antiscorbutica Welw. | Image | |
| benguellensis Gürke [End] | BE | |
| coerulea Gürke var. coerulea | ||
| coerulea Gürke var. linearifolia (Bamps) Vollesen | ||
| eriocalyx Welw. | ||
| gossweileri Robyns & Lebrun [End] | ||
| rhodesiana S. Moore | Description, Image | |
| vestita Baker |