| 11. | Its leaves always grow in pairs and almost have no petiole.
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| 12. | Symptoms include wilting and black streaks on the leaves and petioles.
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| 13. | Symptoms first appear on the petiole and veins of older leaves.
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| 14. | The nest petioles ( stem ) are perpendicular to these supports.
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| 15. | Leaves are oblong in shape and have very short petioles.
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| 16. | In North America the crisp petiole ( leaf stalk ) is used.
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| 17. | Normally used for flowers and foliage with long pliable petioles or stems.
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| 18. | They have multiple, much-branched woody petioles are rather long.
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| 19. | The simple petioles and are not enclosed by a sheath.
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| 20. | The long and thin leaves are essentially petioles and measure in length.
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