| General Information |
| Distribution | Native to Eurasia.In the Hawaiian Islands,
naturalized on
Maui, Hawai`i.
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Habit
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Hirsute to subglabrous annual herbs 1.5-15 dm tall.
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Leaves
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Leaves ovate, 2.5-10 cm long, 2-7 cm wide, with a few large teeth or lobes especially toward base, margins dentate, petiolate, becoming sessile above.
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Flowers
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Involucre 5-8 mm high, inner bracts linear-oblong, outer bracts ovate to lanceolate.
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Fruit
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Achenes 2-5(-9) mm long, outer ones much longer than inner ones, 18-30-nerved, but 5-6 of them more conspicuous, glabrous.
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Chromosomes
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2n = 12, 14, 16
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