| 1. | They are cylindrical and drooping, somewhat ( resembling catkins ).
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| 2. | The pollen cones are long and catkin-like in shape.
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| 3. | The flowers are inconspicuous unisexual catkins that occur in the spring.
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| 4. | The dioecious, with male and female catkins on separate plants.
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| 5. | The pollen is born on panicles consisting of several erect catkins.
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| 6. | The fruiting catkins are frequently considered desirable from a landscaping perspective.
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| 7. | Their typical flowers are catkins and often appear before leaves.
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| 8. | The flowers are wind-pollinated pendulous catkins, produced in spring.
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| 9. | Typically, 10 30 seeds are on each seed catkin.
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| 10. | The flowers are greenish-yellow catkins, produced in the spring.
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