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DescriptionAnnual, diffusely branched, glandular-punctate herbs, not strongly aromatic when bruised. Leaves alternate, sometimes opposite, pinnatisect with filiform lobes; margin entire. Inflorescence a diffuse panicle. Capitula small, distinctly stalked, heterogamous; ray florets female, ligulate; disk florets bisexual. Phyllaries 2-seriate, free; margin hyaline. Achenes narrowly obpyramidal. Pappus of 8 hyaline scales.