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Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key G: woody plants with alternate, simple leaves

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1 Leaves palmately or pinnately lobed.
..2 Leaves pinnately lobed (the midvein dominant, with 2, 4, or more lateral veins diverging into the lobes from the midvein above the base of the leaf blade)
..2 Leaves palmately lobed or bilobed (3, 5, or more veins diverging from the base of the leaf blade into the lobes)
1 Leaves not lobed (entire or serrate, sometimes coarsely so), or only with 2 small auriculate lobes at the base of an otherwise unlobed leaf blade (such as various Magnolia species).
....3 Woody grasses (bamboos), infrequently flowering, with hollow stems
....3 Lianas, shrubs, or trees, not grasses, generally with solid stems.
......4 Lianas (plant generally with obvious adaptations for climbing, such as adventitious roots, twining stems, or tendrils)
......4 Shrubs, subshrubs, or trees (sometimes scrambling or occasionally high-climbing with the support of other vegetation, but lacking the specialized climbing structures listed above).
........5 Shrubs or subshrubs.
..........6 Leaves entire (sometimes ciliate or scabrous on the margin)
..........6 Leaves serrate, crenate, serrulate, crenulate, or doubly serrate
........5 Trees.
............ 7 Leaves entire (sometimes ciliate or scabrous on the margin)
............ 7 Leaves serrate, crenate, serrulate, crenulate, or doubly serrate
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