かずさきよもぎであれば
数咲き蓬であれば
kazu sakiyomogideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of かずざきよもぎ

1. If/when the number of blossoms of artemisia were…; If artemisia were to bloom in numbers…

Ba Conditional
Usually Written in Kana