Annual or perennial herbs, without stinging hairs. Stipules fused, intrapetiolar. Leaves distichous, asymmetrical. Inflorescences of unisexual sessile capitula with a disk-shaped receptacle surrounded by involucral bracts. Male flowers 4-5-merous. Worldwide: c. 300 species in the tropical Old World, extending to New Zealand Rwanda: 2 taxa. |
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| Species | Content | |
| monticola Hook. f. | Description, Image | |
| welwitschii Engl. | Description, Image |