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American sweetgum (Liquidambar styraciflua), also known as American storax, [3] hazel pine, [4] bilsted, [5] redgum, [3] satin-walnut, [3] star-leaved gum, [5] alligatorwood, [3] gumball tree, [6] or simply sweetgum, [3] [7] is a deciduous tree in the genus Liquidambar native to warm temperate areas of eastern North America and tropical montane regions of Mexico and Central America.
The American sweetgum is widely planted as an ornamental, within its natural range and elsewhere. The hardened sap, or gum resin, excreted from the wounds of the sweetgum, for example, the American sweetgum (Liquidambar styraciflua), can be chewed on like chewing gum and has been long used for this purpose in the Southern United States. [4]
Liquidambar acalycina, Chang's sweetgum, is a species of flowering plant in the family Altingiaceae native to southern China. Growing to 30–50 ft (9.1–15.2 m) tall and 20–30 ft (6.1–9.1 m) broad.
Oriental sweet gum trees favour an elevation of between 0–400 m (0–1,312 ft), a mean annual rainfall of 1,000–1,200 mm (39–47 in) and a mean annual temperature of 18 °C (64 °F). The tree's optimal growth is on rich, deep and moist soils such as bogs, river banks and coastal areas, but it is also able to grow on slopes and dry soil.
About 1,000 soil subgroups are defined in the United States. [6] A soil family category is a group of soils within a subgroup and describes the physical and chemical properties which affect the response of soil to agricultural management and engineering applications. The principal characteristics used to differentiate soil families include ...
Liquidambar formosana is a large, native, deciduous tree that grows up to 30-40m tall. The leaves are 10~15 cm wide, [4] and are three-lobed unlike five- to seven-lobed leaves of most American Liquidambar species. [5]
Soil map from "Geography of Ohio," 1923. A soil map is a geographical representation showing diversity of soil types or soil properties (soil pH, textures, organic matter, depths of horizons etc.) in the area of interest. [1] It is typically the result of a soil survey inventory, i.e. soil survey.
The World Reference Base for Soil Resources (WRB) is an international soil classification system for naming soils and creating legends for soil maps. The currently valid version is the fourth edition 2022. [ 1 ]