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Leaf and flower detail of a Chinese chestnut at New York Botanical Garden. It is a deciduous tree growing to 20 metres (66 ft) tall with a broad crown. The leaves are alternate, simple, 10–22 centimetres (4– 8 + 1 ⁄ 2 in) long and 4.5–8 cm (1 + 3 ⁄ 4 – 3 + 1 ⁄ 4 in) broad, with a toothed margin.
Young tree in natural habitat American chestnut male (pollen) catkins. Castanea dentata is a rapidly-growing, large, deciduous hardwood eudicot tree. [20] A singular specimen manifest in Maine has attained a height of 115 feet (35 m) [21] Pre-blight sources give a maximum height of 100 feet (30 m), and a maximum circumference of 13 feet (4.0 m). [22]
Bark of C. sativa (sweet chestnut). Chestnut trees are of moderate growth rate (for the Chinese chestnut tree) to fast-growing for American and European species. [4] Their mature heights vary from the smallest species of chinkapins, often shrubby, [5] to the giant of past American forests, C. dentata that could reach 60 metres (200 feet).
The original habitat of the American chestnut. Source: U.S. Department of Agriculture / Wikimedia Commons. An estimated 3 billion to 6 billion American chestnut trees once covered forests ...
Japanese chestnut and Chinese chestnut, as well as Seguin's chestnut and Henry's chestnut, have been used in these breeding programs in the US to create disease-resistant hybrids with the American chestnut. [27] Chinese chestnut trees have been found to have the highest resistance to chestnut blight; [17] however, individuals within the Chinese ...
The American chestnut tree was nearly wiped out by disease. But efforts are underway to develop a new strain that's more resistant to blight. A Stroll Through the Garden: Efforts underway to ...
The American chestnut tree used to grow throughout the eastern U.S., but was devastated by a blight in the early 20th century. Skip to main content. 24/7 Help. For premium support please call: 800 ...
The study also found that the Ozark chinkapin may actually be ancestral to the American chestnut and Allegheny chinkapin, rather than the other way around. [6] [5] Another study has found that the surviving Ozark chinkapins are even more resistant to the chestnut blight than the Chinese chestnut, which is not affected by the blight. [5]
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