botanical

她在图书馆找到了一本关于热带植物的植物学著作。

She found a ___botanical book about tropical plants in the library.

她对植物学有浓厚的兴趣，经常参观植物园。

She has a strong interest in ___botanical studies and often visits botanical gardens.

这种洗发水含有植物成分，对头皮很温和。

This shampoo contains gentle ___botanical ingredients that are kind to the scalp.