In the 1880's, however, imported Japanese chestnuts brought in a killer fungus.

In Japan, the word kuri may refer to either the squash discussed in this article or to Japanese chestnuts.

Chestnut-breeding programs today have two aims, and they take advantage of the blight resistance of Chinese and Japanese chestnuts.

Chinese chestnut pellicles are usually easy to remove, and their sizes vary greatly according to the varieties, although usually smaller than the Japanese chestnut.

The chestnut blight was accidentally introduced to North America around 1900, probably on imported Japanese chestnut nursery stock.

Japanese Chestnut (Castanea crenata) is a species of chestnut originally native to Japan and South Korea.

The Japanese chestnut (called kuri) was in cultivation before rice and the Chinese chestnut (Castanea mollissima) possibly for 2,000 to 6,000 years.

Moreover, the Dandong chestnut (belonging to the Japanese chestnut — 'Castanea crenata') is a major cultivar in Liaoning.

In an excavation of a Jōmon period archeological site, the carbonized remains of what appeared to be baked cookies made from Japanese Chestnut powder were discovered.

American chestnut trees, once numerous in the East, were devastated in the early 20th century by a blight that probably came from Japanese chestnut trees, which had begun to be imported here.

Infection of American chestnut trees with C. parasitica simultaneously appeared in numerous places on the east coast, most likely from Castanea crenata, or Japanese chestnut, which had become popular imports.

In the late 1800's, the fungus that causes chestnut blight entered the United States on imported Chinese chestnut (C. mollissima) and Japanese chestnut (C. crenata) trees.

There are four main species, commonly known as Sweet Chestnut, Chinese Chestnut, Japanese Chestnut and American Chestnuts Industry information by David McLaren.

Sasayama is well known in the Kansai region for its agriculture and food products, specifically: kuromame or kuro daizu (black soybeans), Japanese yams, Japanese Chestnuts, azuki beans, matsutake, beef, wild boar and deer meat.

When cultivated close to other species of chestnut (including Japanese chestnut, C. crenata; American chestnut, C. dentata; and sweet chestnut, C. sativa), Chinese chestnut readily cross-pollinates with them to form hybrids.

The resistant species-particularly 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.

It has several related chestnut species, such as the European sweet chestnut, Chinese chestnut, and Japanese chestnut, which are distinguishable from the American species by a few morphological traits such as leaf shape, petiole length and nut size.

The Chinese and more so the Japanese chestnuts are both often multileadered and wide-spreading, whereas European and especially American species tend to grow very erect when planted among others, with little tapering of their columnar trunks, which are firmly set and massive.

Established in the 1930s to monitor the success of a variety of exotic tree species in the humid west coast environment, it includes specimens of Sequoia, Japanese Larch, Araucaria araucana (monkey puzzle) and Japanese Chestnut amongst many others from around the world.

Their mature heights vary from the smallest species of chinkapins, often shrubby, to the giant of past American forests, Castanea dentata that could reach 60 m. In between these extremes are found the Japanese chestnut (Castanea crenata) at 10 m average;Some specimens can have greater bulk.