Taxodium distichum

Taxodium distichum (bald cypress, swamp cypress; cyprès chauve; cipre in Louisiana) is a deciduous conifer in the family Cupressaceae. It is native to the southeastern United States. Hardy and tough, this tree adapts to a wide range of soil types, whether wet, salty, dry, or swampy. It is noted for the russet-red fall color of its lacy needles. This plant has some cultivated varieties and is often used in groupings in public spaces. Common names include bald cypress, swamp cypress, white cypress, tidewater red cypress, gulf cypress and red cypress. The bald cypress was designated the official state tree of Louisiana in 1963. Taxodium distichum is a large, slow-growing, and long-lived tree. It typically grows to heights of and has a trunk diameter of . The main trunk is often surrounded by cypress knees. The bark is grayish brown to reddish brown, thin, and fibrous with a stringy texture; it has a vertically, interwoven pattern of shallow ridges and narrow furrows. The needle-like leaves are long and are simple, alternate, green, and linear, with entire margins. In autumn, the leaves turn yellow or copper red. The bald cypress drops its needles each winter and then grows a new set in spring. This species is monoecious, with male and female cones on a single plant forming on slender, tassel-like structures near the edge of branchlets. The tree produces cones in April and the seeds ripen in October. The male and female strobili are produced from buds formed in late autumn, with pollination in early winter, and mature in about 12 months. Male cones emerge on panicles that are inches long. Female cones are round, resinous and green while young. They then turn hard and then brown as the tree matures. They are globular and in diameter. They have from 20 to 30 spirally arranged, four-sided scales, each bearing one, two, or rarely three triangular seeds. Each cone contains 20 to 40 large seeds. The cones disintegrate at maturity to release the seeds. The seeds are long, the largest of any species of Cupressaceae, and are produced every year, with heavy crops every 3–5 years.