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ophis: winter twigs, norway maple
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ophis: end buds, norway maple
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ophis: 1st year twig, norway maple
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ophis: end bud, norway maple
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ophis: annual nodes marked by bands of narrow scars
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ophis: cut 2nd and 1st year twigs, norway maple
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ophis: 4th-5th (top), 2nd (middle), and 1st year (bottom) twigs, norway maple