Leaf Shape & Arrangement

This page directs readers to botanyincontext TikTok postings relevant to leaf description, providing links and supplemental information.

Simple Leaves

Coccoloba uvifera shows simple leaves that are almost sessile (having no petiole).

Compound Leaves

Green Ash (Acer negundo), widespread and incredibly adaptable in North America, is a maple with foliage that resembles that of Fraxinus, ash trees, and is oddly un-maple-like. The leaves are pinnately compound. As with other maples, and with Fraxinus, the compound leaves are produced opposite one another by the stem growing tips. Green Ash is deciduous, producing new stems, leaves, flowers and fruit early in each growing season. The following TikTok clips of Green Ash foliage were taken on our farm in Missouri, in Spring of 2021: 2021.05.08.02 Acer negundo, opposite leaves https://vm.tiktok.com/ZMdDWWLDq/; 2021.05.08.05.  Acer negundo, fruiting type. https://vm.tiktok.com/ZMdDWWfRN/

Hickories (Carya) are Eastern hardwoods, ranging into the drier Ozarks, where they are very prominent, and even extending into North Florida. They are all deciduous, producing odd-pinnate leaves that vary in vestiture (hairiness) and relative proportions from one species to another. Two of the more common species are Pignut Hickory (C. glabra) and Mockernut Hickory (C. tomentosa), both of which are present at our farm in mid-Missouri as well as near us in special hardwood forest sites in the Florida Panhandle. Some TikToks showcasing Hickory foliage are: 2021.05.16.02 Hickory (Carya glabra) on Pleasure Point, Lake Ozark. https://vm.tiktok.com/ZMdD7yjxb/; 2021.04.16.03 Bark of the same tree, at Lake Ozark, most likely Pignut Hickory, Carya glabra https://vm.tiktok.com/ZMdD7F245/; 2021.05.16.06 Mockernut Hickory leaves. https://vm.tiktok.com/ZMdD7empU/; 2021.07.02.11 Carya glabra near Carabelle https://vm.tiktok.com/ZMdC7Sbgd/

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