We are planning to go to the botanical garden this weekend.

There are many houseplants in my room.

There are many succulent plants in my room.

Many immigrant plants live in this park.

I often use vegetable oil for cooking.

He is majoring in botany at university.

He is majoring in botany at university.

This building is made of concrete.

The Oniwaban was in charge of information gathering and security during the Edo period.

Chrysophyta perform photosynthesis underwater, supplying oxygen.