| 21. | The inflorescence is a panicle with a pyramidal or ovate shape.
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| 22. | The inflorescence is a narrow panicle up to 16 centimeters long.
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| 23. | Its flowers are 5-parted and clustered on terminal panicles.
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| 24. | They are produced later in the year than the open panicle.
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| 25. | The inflorescence is a branching panicle with brown or greenish spikelets.
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| 26. | The inflorescence is a cylindrical panicle up to 70 centimeters long.
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| 27. | The panicle itself is open and linear, and is long.
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| 28. | The panicle itself is open and pyramidal, and is long.
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| 29. | The inflorescences are panicles of flowers growing from the leaf axils.
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| 30. | Flowers are borne in a panicle of up to 20 flowers.
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