Question:

I've just learned the blessing that we say before taking the Four Species on Sukkot—and I have a question. Why do we say "Blessed are You … who sanctified us with His commandments and commanded us concerning the taking of the lulav"? What happened to the other kinds? Why do we just mention the lulav?

Answer:

Good question! In fact, the sages of the Talmud1 ask the same thing. The answer given is very simple: The lulav is by far the tallest of the four kinds, and the entire bundle is thus called a "lulav," even though it comprises other species as well.