偶数 ぐうすう羽状 うじょう複葉 ふくようだったら
gūsūujō fuku yōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 偶数羽状複葉

1. If it were pinnately compound…; If it had pinnately compound leaves…

Tara Conditional
Botany