| 1. | The florets are bisexual, pistillate, functionally staminate or neuter.
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| 2. | The male plant produces clusters of tiny pale yellow pistillate flowers.
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| 3. | Pistillate and staminate members are indistinguishable without opening the protective prophyll.
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| 4. | The inflorescence contains pistillate heads in leaf axils below the clusters.
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| 5. | Additionally, the flowers may be either bisexual or pistillate.
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| 6. | The small, pointed leaves are arranged in pistillate flowers.
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| 7. | The pistillate flowers are larger, calyx similar, with six staminodes.
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| 8. | The shrub is generally pistillate flowers clustered near the bottom.
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| 9. | As in other ragweeds, the inflorescence has a few pistillate heads.
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| 10. | This is a phyllaries and yellow disc and pistillate florets.
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