On July 17, 2008, the Aoyama Tree in Little Tokyo, Los Angeles, was designated Historic Cultural Monument No. 920 by the City of Los Angeles. In attendance at the ceremony were the city dignitaries, Koyasan Buddhist Temple members, and Little Tokyo community activists who campaigned for official recognition for the tree. The Aoyama Tree is the first living object to receive this designation from the city.

The tree, a Moreton Bay Fig, stands at the former site of the Koyasan Buddhist Temple. It was planted in 1920 and is named for Koyasan mission's founder, Rev. Shutai Aoyama.