More than 30 of these species are found at the Manyo Botanical Garden Manyō shokubutsu-en (万葉植物園) in Japan, collectively placing them with the name and associated tanka for visitors to read and observe, reminding them of the ancient time in which the references were made.
Više od 30 vrsta nalaze se u Botaničkom vrtu Man'yōu (万葉植物園, Manyō shokubutsu-en u Japanu, čime ih se skupa stavlja uz ime i pridruženu tanku za posjetitelje radi čitanja i promatranja, podsjećajući ih na drevna vremena u kojima su napravljene referencije.