nidan verb (upper class) with 'hu/fu' ending (archaic), intransitive verb
Archaic intransitive verb for plants growing or springing up. In modern Japanese, 生える (はえる) is used instead.
古典では「草の生うるが如し」のように使われる。
In classical texts, it is used as in 'like grass growing'.
Classical Japanese verb. The exact derivation is uncertain; it is the older form of modern 生える (はえる).