What is the scientific name of seaweed used in sushi?

There isn't one single "scientific name" for seaweed used in sushi. This is because many different types of seaweed are used in sushi.

Here are the most common types, with their scientific names:

* Nori (Porphyra): This is the most common type of seaweed used for sushi rolls. There are several species of Porphyra used, including *Porphyra yezoensis* and *Porphyra tenera*.

* Wakame (Undaria pinnatifida): This seaweed is used in salads, soups, and sometimes as a garnish for sushi.

* Hijiki (Sargassum fusiforme): This seaweed is often used in salads and simmered dishes, but can also be used as a garnish for sushi.

* Arame (Eisenia bicyclis): This seaweed is used in soups and salads, and can also be used as a garnish for sushi.

So, while there isn't a single name, you can identify the specific type of seaweed used by its scientific name.