The following images are of what I saw recently
around me. Taraxicum arakii: a dandelion indigenous to
Japan, very rare nowadays. It is considered to have
out by Taraxicum officinale, an invader from
Europe. The main difference between the two lies in
the shape of involucral bracts; in T. officinale,
they are recurved, while those of T. arakii
being straight up. Taraxicum albidum: another native of Japan.