This pattern is designed to depict a land-scape of autumn leaves flowing in running water.
Its name comes from the Tatsuta-gawa River in Nar a Prefecture,
which is famous for its autumn leaves.
In the Kokin Wakashu, its beauty is likened to brocade (a noble t extile):
“Autumn leaves flow in turbulence on the Tatsutagawa River, and if I cr oss it,
the brocade will likely break in the middle.”