| 11. | The lungs of sirenians are unlobed,
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| 12. | The leaves are undivided and unlobed.
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| 13. | The leaves farther up the stem are shorter, narrower, and more shallowly lobed or unlobed.
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| 14. | It has with unlobed, lance-shaped leaves, unlike the multilobed leaves found on most maple species.
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| 15. | The corolla has a lower lip with three lobes and an upper lip that is unlobed or double-lobed.
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| 16. | The leaves are elliptical and waxy, unlobed and untoothed unlike the multi-lobed leaves found on most maples.
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| 17. | The leaves are narrowly to widely oval in shape, the lower ones lobed and sometimes compound, the upper generally unlobed.
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| 18. | The leaves are spirally arranged, simple unlobed, 4-15 cm long and 2-7 cm broad, with a serrated margin.
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| 19. | "Crataegus " ?" lavalleei " is an ornamental small tree with glossy dark green unlobed leaves that is used horticulturally.
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| 20. | Leaves are elliptical or egg-shaped, up to 15 cm ( 6 inches ) long, unlobed or with a few shallow rounded lobes.
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