| 21. | This perennial herb produces a cluster of stems from an underground caudex.
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| 22. | This caudex branches into stems underground and has been called a rhizome.
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| 23. | It has a branching caudex and stems just a few centimeters long.
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| 24. | These geophytic trunks are caudexes, enlarged stems or trunks that store water.
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| 25. | The leaves form a basal rosette about the caudex.
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| 26. | This is a perennial herb growing from a slender taproot and caudex unit.
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| 27. | It is a perennial herb growing from a thick taproot and caudex unit.
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| 28. | This herb arises from a woody caudex attached to the thick root system.
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| 29. | This perennial herb grows a few centimeters tall from a taproot and caudex.
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| 30. | This plant is a perennial herb producing several erect stems from its caudex.
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