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Perennial, less often annual or biennial, herbs. Leaves alternate, simple or compound. Capitula radiate, terminal on stems and branches, often showy, long-pedunculate. Disk florets bisexual, brown or purple. Ray florets neuter, with yellow or red ligules. Receptacle strongly hemispherical to elongated, bearing rigid scales. Achenes 4-angled. Pappus crown-like, cup-shaped or 0.Trusted










