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Annual, biennial or perennial herbs. Leaves alternate, lanceolate, linear-lanceolate or oblanceolate. Capitula heterogamous, in small clusters which are arranged in cymes or corymbs. Phyllaries in 3-4 series. Outer florets female in 2-many series, numerous, usually outnumbering the inner bisexual florets. Pappus of many scabrid bristlesTrusted






