Allium fistulosum (Welsh Onion) is a species of perennial herb in the family Amaryllidaceae. They have a self-supporting growth form. They are native to Canada. They have simple, broad leaves. Flowers are visited by Japanese carpenter bee, Carpenter Bees, Common carder bumblebee, and Bombus hypnorum. Individuals can grow to 0.44 m.
EOL has data for 24 attributes, including: