| General Information |
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| Distribution | A genus of about 50 species of temperate Eurasia.
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Habit
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Biennial herbs from a deep taproot, with milky sap; stems 1 to few, coarse and very tough, (2-)3-8 dm long, sparingly branched above.
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Leaves
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Leaves simple, alternate, linear, appearing grass-like, margins entire.
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Flowers
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Heads solitary, terminating the branches, florets all of ray type; involucre cylindrical or campanulate, the bracts in a single equal series; receptacle naked; ray florets perfect and fertile, rays yellow or purple, 5-toothed; pappus of plumose bristles.
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Fruit
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Achenes cylindrical, rounded or angled, 5-10-nerved, terminating in a slender beak or sometimes the outermost achenes beakless.
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