Taxodium

plant genus

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Last updated

July 23, 2026

Quick Summary

The genus Taxodium comprises tall, deciduous coniferous trees native to wetland areas of southern North America. These trees are known for their resistance to water and rot, making their wood valuable. A notable characteristic of Taxodium species, particularly the bald cypress (Taxodium distichum), is the development of woody projections called "knees" from their roots when growing in wet soil. These knees are believed to help oxygenate the roots and provide support.12

The genus Taxodium is part of the family Cupressaceae and is classified within the order Pinales. While the bald cypress is the most well-known species, the genus may include one to three species, with the Montezuma cypress (Taxodium mucronatum) being closely related.13

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bald cypress
Classification
The taxonomy of the genus Taxodium is contentious; the genus consists of one to three species. The smaller pond cypress, or upland cypress, of the southeastern United States is usually listed as a variety of the bald cypress (T. distichum, variety imbricatum); however, it is sometimes considered to be a…
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The taxonomy of the genus Taxodium is contentious; the genus consists of one to three species. The smaller pond cypress, or upland cypress, of the southeastern United States is usually listed as a variety of the bald cypress (T. distichum, variety imbricatum); however, it is sometimes considered to be a…
Read More