| General Information |
| Distribution | Native to Eurasia.In the Hawaiian Islands,
naturalized on
Kaua`i, O`ahu, Lana`i, Maui, Hawai`i.
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Habit
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Stout perennial herb 9-12 dm tall.
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Leaves
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Leaves glaucous to dark green, ovate to triangular, ca. 30 cm long, ca. 40 cm wide, pinnately decompound, the ultimate divisions filiform, 4-40 mm long, ca. 0.5 mm wide; petioles 7-14 cm long, wholly sheathing.
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Flowers
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Peduncles 1.5-6.5 cm long, rays 15-40, spreading ascending in flower, ascending to suberect in fruit, unequal, pedicels 2-10 mm long, subequal.
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Fruit
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Fruit 3.5-4 mm long, 1.5-2 mm wide, ribs acute.
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Chromosomes
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2n = 16, 22, 26, 30, 44.
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