Covering a total area of around 4.4 million hectares, cedar trees account for more than 40 percent of planted forests in Japan. Most of the trees are 20 or more years old, and therefore more ...

TOKYO -- Hay fever season is at its height across much of Japan, caused by the dispersion of pollen from Japanese cedar trees. The previous administration of Prime Minister Fumio Kishida announced ...

Kitayama cedar—known for its light color, uniform thickness, and smooth, knotless trunk—is treasured as a material for floors and pillars in Japanese architecture. And daisugi cedars ...

“Use of genome editing can remove pollen from cedar that is useful as construction material.” About 70 percent of patients with hay fever--a common type of allergy in Japan--are said to ...