せいたかあわたてそうなら
背高泡立草なら
seitaka awatatesōnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of せいたかあわだちそう

1. If/when tall bubble-leaf grass…; If there is tall bubble-leaf grass…

Nara Conditional
Usually Written in Kana