| General Information |
| Distribution | From Texas south to Guatemala, Costa Rica, and Cuba. In the Hawaiian Islands,
naturalized on
Midway, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.
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Habit
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Stems often rooting at the nodes.
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Leaves
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Leaves 1-3(-6) cm long, 1-2(-4) cm wide, petioles 0.5-1.5 cm long.
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Flowers
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Involucral bracts 5-10 mm long, the inner
ones shorter and narrower; rays yellow, 1.5-3 mm long; disk corollas ca. 2.5 mm long; pappus awns 1-2(-4) mm long.
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Fruit
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Achenes tuberculate.
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Seeds
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2n = 24, 72
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