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DescriptionAnnual or biennial thistles. Leaves alternate or borne in a basal rosette, white-veined or variegated above, sinuately lobed or pinnatifid, with a spiny margin. Capitula discoid, solitary, terminal, erect or nodding. Phyllaries of many spiny bracts. Receptacle hairy, not pitted. Florets all tubular and bisexual, red-purple; stamens united below into a tube. Achenes obovoid, flattened, glabrous, crowned with a membranous border. Pappus of many rows of rough hairs, united below into a basal ring.