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ophis: red oak
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ophis: red oak bole
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ophis: twigs in direct sun, red oak
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ophis: twigs in soft indoor light, red oak
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ophis: 3rd year twig with 2nd year branch, red oak
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ophis: 1st year twig, red oak
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ophis: 1st, 2nd, 3rd, and 4th year twigs, red oak
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ophis: cut 1st, 2nd, 3rd, and 4th year twigs and inner bark on 4th year twig