Noun
Welsh onion (plural Welsh onions)
A species of onion (Allium fistulosum).
Synonyms: Japanese bunching onion, spring onion
The standard toppings are roasted pork ( char siu ), boiled spinach, sheets of nori, often with shredded Welsh onion (negi) and a soft or hard boiled egg. Source: Internet
Spring onions or salad onions may be grown from the Welsh onion (A. Source: Internet