My MIL asked me to get green onions at the grocery store. When I got back, she told me that they were scallions and not green onions, and she wouldn't use them.

Take a deep breath and let yourself off the hook: you were 100% correct, and your mother-in-law is completely wrong.

There is nothing more frustrating than trying to do a nice favor, only to get criticized for a mistake you didn't even make. It is completely understandable why you felt hurt and annoyed by her reaction.

The botanical truth is incredibly simple: scallions and green onions are the exact same thing. They are identical in taste, texture, and origin.

Here is the breakdown of why they have two names, what actually goes on at the grocery store, and the one vegetable she might have actually been thinking of.

The Botanical Truth: Green Onions vs. Scallions

In the culinary and botanical worlds, "green onion" and "scallion" are two different names for the exact same plant, usually Allium fistulosum (the Welsh onion) or young, immature versions of the common onion (Allium cepa).

Take a deep breath and let yourself off the hook: you were 100% correct, and your mother-in-law is completely wrong.

There is nothing more frustrating than trying to do a nice favor, only to get criticized for a mistake you didn't even make. It is completely understandable why you felt hurt and annoyed by her reaction.

The botanical truth is incredibly simple: scallions and green onions are the exact same thing. They are identical in taste, texture, and origin.

Here is the breakdown of why they have two names, what actually goes on at the grocery store, and the one vegetable she might have actually been thinking of.

The Botanical Truth: Green Onions vs. Scallions

In the culinary and botanical worlds, "green onion" and "scallion" are two different names for the exact same plant, usually Allium fistulosum (the Welsh onion) or young, immature versions of the common onion (Allium cepa).

If you look at the USDA (United States Department of Agriculture) guidelines, they don't even distinguish between the two. They are graded and sold under the exact same standards.

Why Do They Have Two Names?

It all comes down to geography and marketing.

In some parts of the world and certain regions of the United States (especially the East Coast and parts of Canada), "scallion" is the preferred culinary term. In other regions, "green onion" is the default.

To make things even more confusing, grocery store signs are notoriously inconsistent. One store might label a crate "Scallions," while the store down the street labels the exact same crop "Green Onions." You bought the correct vegetable; you just happened to buy a bunch that was labeled with one synonym instead of the other.