Annual or perennial herbs or small shrubs. Leaves alternate. Inflorescence terminal on axillary branches. Capitula hemispherical, solitary or in clusters of 2-3, homogamous; disk florets bisexual, purple to blue. Phyllaries in several series; outer leaf-like, inner membranous. Receptacular scales 0. Achenes 8-10-ribbed. Pappus a row of bristles. Worldwide: 2 species Zimbabwe: 1 cultivated taxon. |
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