Medical tests started in the 1940s and 1950s, searching for the cause of the disease. Initially, it was expected to be lead poisoning due to the lead mining upstream. Only in 1955 did Dr. Ogino and his colleagues suspect cadmium as the cause of the disease. Ogino coined the term itai-itai disease.
Salix babylonica, commonly called weeping willow or Babylon weeping willow, is a medium to large deciduous tree with a stout trunk topped by a graceful broad-rounded crown of branches that sweep downward to the ground.It grows to 30-50â (sometimes to 60â) tall and as wide.It is native to China.alix babylonica, commonly called weeping willow or Babylon weeping willow, is a medium to large deciduous tree with a stout trunk topped by a graceful broad-rounded crown of branches that sweep downward to the ground. It grows to 30-50â (sometimes to 60â) tall and as wide. It is native to China.
The desert willow (Chilopsis linearis) is a small shrub-like tree that grows up to 20 feet tall and wide with a 6-inch-diameter trunk.Desert willows are not true members of the willow family. The desert willow blooms in white, pink or purple flowers in the spring and throughout the summer.verview. The desert willow (Chilopsis linearis) is a small shrub-like tree that grows up to 20 feet tall and wide with a 6-inch-diameter trunk. Desert willows are not true members of the willow family.