noun
cudweed; Gnaphalium japonicum
A small annual herb native to East Asia, often found in fields and roadsides. The name literally means 'father-and-child grass'.
道端にチチコグサが咲いていた。
Cudweed was blooming by the roadside.
The name 父子草 (father-and-child grass) likely comes from the appearance of the flower heads, which resemble a parent and child together. The exact origin is uncertain.