| 21. | The spine of the pectoral fin is serrated on both sides.
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| 22. | Hatchlings have serrated hind legs which become smooth as they mature.
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| 23. | The alternately arranged leaves are heart-shaped with serrated edges.
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| 24. | The maxillary teeth are larger, more compressed, and serrated.
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| 25. | Leaves are alternately arranged on the stem, without serrated edges.
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| 26. | The teeth are also laterally compressed, pointed, and serrated.
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| 27. | The grasslike leaf blades are thick, rough, and serrated.
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| 28. | It is sharper than other knives and has a serrated edge.
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| 29. | Leaves opposite, pinnate, with 7-9 serrate leaflets.
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| 30. | The second lateral is oblong and serrated like the first one.
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