![]() The red oak group, section Lobatae (sometimes called Erythrobalanus), is famous for leaves with jagged, bristle-tipped teeth or lobes and “bitter” acorns that take two years to mature. Swamp chestnut oak (basket oak, cow oak) ( Q.Missouri has 8 species in the white oak group: Globally, there are about 130 species in this section, ranging through North America, Central America, Europe, and Asia.This makes the wood waterproof (it swells well when soaked), which accounts for its use in barrels, buckets, and the hulls of ships. The wood cells of these trees are coated inside with a plastic-like substance called tyloses.Acorns in the white oak group provide “sweet mast”: the acorns mature in one year, are less bitter, and germinate in the fall.The bark is light gray and rather flaky.Leaves are lobed or wavy along the edges, and the lobes and ends of the leaf are rounded and smooth (not spiky or bristle-tipped).alba) is the most famous species in this group (the group is named after it). The white oak group, called section Quercus (sometimes called Leucobalanus), is famous for having leaves with rounded lobes and “sweet” acorns that mature in a single year. Learning how to make this initial separation can simplify identification by automatically eliminating the species in the other group. Missouri’s native oaks fall into 2 of those groups. ![]() The star-shaped pith of the twigs is characteristic also.īotanists have separated the world’s oaks into 5 “sections” or subgenera (a level between genus and species). Next to the acorn, the best identifying characteristic is the cluster or groups of buds found at the end of the twigs. Large pores are found in the springwood, and rays of wood radiate from the pith. ![]() Leaves occur singly on alternate sides of the twig. The fruit is the familiar acorn, a staple food for many species of wild animals. The oaks, which are related to beech, chestnut, and chinquapin, have several distinguishing characteristics. Also, more than 30 different oak hybrids (crosses between the various species) have been recorded in the state. There are 22 species of oaks that grow native or are naturalized in Missouri.
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