| 11. | Male flowers grow on long spikes; female flowers are solitary in axils.
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| 12. | The male and female flowers are borne in clusters or spikelike inflorescences.
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| 13. | The male and female flowers are on different branches of the panicle.
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| 14. | Male flowers are axillary spikes and female flowers are axillary racemes.
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| 15. | Alone in the world, the tree resourcefully produces both male and female flowers.
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| 16. | Its male and female flowers appear superficially similar, but differ structurally.
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| 17. | Both male and female flowers are present in a single inflorescence.
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| 18. | The most common techniques are for crops such as stigmas of female flowers.
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| 19. | Each plant produces either functionally male flowers or functionally female flowers.
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| 20. | Pollen passes from male to female flowers via wind or insects.
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