北海道黄杨树为大叶黄杨的栽培品种,是卫矛科卫矛属的常绿阔叶品种。原产日本北海道的札幌市。1986年由中国农科院引种到北京,经驯化、繁育、优选,成为适宜我国北方气候条件的新一代常绿阔叶新品种。北海道黄杨树叶片较宽,呈椭圆形至阔椭圆形,顶端钝圆。其特殊之处在于主干明显,年平均生长量约70公分,年最高生长量和达170公分,生长较快,五年生苗高可达3米以 Hokkaido Boxwood is a cultivated species of Euonymus japonicus, is the evergreen broad-leaved species of David weevil. Originally produced in Sapporo, Hokkaido, Japan. In 1986, it was introduced to Beijing by Chinese Academy of Agricultural Sciences. After domestication, breeding and optimization, it became a new generation of evergreen broad-leaved varieties suitable for the climatic conditions in northern China. Hokkaido boxwood leaves wider, oval to broad oval-shaped, blunt round top. The peculiarity is that the trunk is obvious, the average annual growth of about 70 cm, the highest annual growth and up to 170 cm, grow faster, five-year-old high up to 3 meters