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DescriptionAnnual or perennial herbs with stalked radical leaves and spirally arranged stem leaves, often palmately lobed or divided. Flowers actinomorphic, bisexual, in 1-many-flowered inflorescences. Sepals 3-5, reflexed (in ours). Petals 5 or more, rarely 0, yellow (in ours) each with a nectar-secreting pit near the base. Stamens numerous. Fruit a head of numerous achenes.