マメ科ハリエンジュ属の落葉高木で、学名は Robinia pseudo-acacia。英名は Black locust。
The Black locust (Robinia pseudo-acacia) belongs to Fabaceae (the Pea family). It is a tall deciduous tree that is native to North America. It was introduced into Japan in 1877. This tree grows fast and can grow well in barrens. It has been planted for erosion and torrent control. The many white flowers appear from May to June. High-quality honey is derived from the nectar of this flowers.