Japanese zelkova

The Japanese zelkova, also known as keaki (Zelkova serrata), is a species of tree native to Asia that belongs to the elm family (Ulmaceae). This tree can grow up to 30 meters (100 feet) tall and features deeply toothed, dark green leaves. It is highly valued in Japan as a source of timber and for bonsai cultivation.1

Outside of Japan, the Japanese zelkova is frequently planted as an ornamental and shade tree, often serving as a replacement for the American elm, which has been severely affected by disease. While not as tolerant of cold as the American elm, the Japanese zelkova exhibits greater resistance to Dutch elm disease. Other species in the Zelkova genus, such as Z. carpinifolia from the Caucasus and Z. sinica from China, are also notable trees within the family.12