Herbs, annual or perennial, the stem short or elongate. Leaves thin to thick and coriaceous; capitula single or arranged in umbels. Capitulum villous; floral bracts present; flowers 2–3-merous; petals eglandular. Male sepals free except at the extreme base; petals connate into a glabrous infundibuliform tube bearing the stamens on its truncate upper margin. Female sepals free except at the extreme base and usually becoming rigid at maturity; petals free. Seeds variable, often with longitudinal ridges. Worldwide: 500 species mostly in South America. DRC: 1 taxon. |
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| Species | Botanical divisions | Content |
| lamarckii Kunth |