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Wild, H. (1975) The Compositae of the Flora Zambesiaca area. 4. Astereae. Kirkia 10(1) 1-72
Annual or perennial herbs. Leaves alternate, 3-5-lobed at least below. Capitula terminal on the branches (in ours), heterogamous, radiate; ray florets female, 1(-2)-seriate, rays longer than pappus; disk florets yellow, bisexual. Receptacle flat, naked. Achenes ± terete or flattened. Pappus of a single series of white minutely barbellate setae. Worldwide: c.150 species, cosmopolitan, but especially N America. Burundi: 3 taxa. |
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| Species | Content | |
| bonariensis L. | ||
| karvinskianus DC. | Description, Image | |
| sumatrensis Retz. | Description, Image |
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