![]() ![]() ![]() The Number of Lobes on Some Different Japanese Maple TreesĪcer palmatum leaves are palmately 5 – 7-lobed and are typically divided about to the middle, but they could be divided as much as ¾ of the way to the base.Īcer palmatum ‘atropurpureum’ cultivars are known for their leaves that resemble the type species but are always in vibrant reds, burgundy, or purple that retain their color throughout the growing season. Therefore, large teeth in a palmately lobed leaf will also never have a main midvein running to its tip. Large teeth are on the sides of the lobes because a lobe tip is never defined as a tooth. If it cuts less than ¼ of the distance to the midvein, then it is a large tooth. If the distance it cuts is more than ¼ of the distance to the midvein, it is a lobule. The distinction between a large tooth and a lobule follows the 25% or ¼ rule. In palmately lobed leaves, a lobe typically has a main vein running to it, while a lobule typically does not. So how do you know it is a lobe and not a lobule or large tooth?Ī lobule is a projection from a lobe rather than a stand-alone feature of its own. ![]() Often, the lowermost lobes are quite small, and it can be difficult to differentiate between a lobe and a lobule or a large tooth. What is the Difference Between a Lobe and a Lobule? You can use the number of lobes a leaf has and how deeply cut (also called incised or dissected) those lobes are to the leaf base to help identify the different types of Japanese Maples. Identifying Japanese Maples by The Number of Lobes on Their Leaves ![]()
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