What type of green onion bulb and stalks that are both edible?

You're likely thinking of scallions, also known as green onions or spring onions.

Here's why:

* Scallions are young, immature onions that are harvested before the bulb fully develops.

* Both the bulb (the bottom, white part) and the stalks (the long, green part) are edible.

Let me know if you have any other questions!