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Perennial herbs, with rhizomes. Leaves distichous, mostly basal. Stems terete to flattened, often strongly winged. Inflorescences composed of 2-nate rhipidia, these 1-many. Flowers actinomorphic, blue, lasting one morning only, twisting spirally as they go over, deliquescent. Tepals free ± to base, spreading horizontally. Fruit a capsule. Worldwide: 50 species in tropical and South Africa and Madagascar Mozambique: 5 taxa. |
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| Species | FZ divisions | Content |
| abyssinica Pax | MS | Description, Image |
| ecklonii Baker | MS | Description, Image |
| gerrardii Weim. | Z,M | |
| polycephala Harms | N | |
| torulosa Klatt | MS,M | Description, Image |
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