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| An adult plant; photos (1-4) © William Wissler | An unfolding leaf. |
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| A plant cultivated in half-shade in a humid place. |
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| The colour of the petioles explains the specific name. |
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Both the petioles and the adaxial surface of the leaves are waxy. In juvenile plants the petioles and veins are green. |
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| A plant cultivated in a garden in Poland (zone 6b), dug out for winter |
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