It never seems to have been widely cultivated and no trees are known to survive.

They are native to central and western China but have been cultivated widely as decorative garden plants.

It has been widely cultivated since under this name.

It is not widely cultivated (except in certain parts of Guatemala).

Native to China, the tree is widely cultivated and was introduced early to human history.

The long staple varieties are the most widely cultivated in commercial production.

It is widely cultivated, usually as an annual from seed.

Very little is known of this cultivar and it never seems to have been widely cultivated.

Now, several breeds are widely cultivated and sold fresh in markets.

They can grow from 2-6 meters, and are widely cultivated as garden plants.