Home › Words › O › onionweedonionweedonionweed means asphodelus fistulosus, an annual or short-lived perennial herb with a hollow stem and a large tuft of onion-like rounded hollow leaves.EtymologyFrom onion + weed.nounAsphodelus fistulosus, an annual or short-lived perennial herb with a hollow stem and a large tuft of onion-like rounded hollow leaves.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.cretanweed 59% match — The annual herb Hedypnois rhagadioloides. vs onionweed →doorweed 59% match — Knotweed. vs onionweed →spiritweed 59% match — The perennial herb Eryngium foetidum. vs onionweed →fleaweed 58% match — A plant, the lady's bedstraw (Galium verum). vs onionweed →onionet 58% match — A small onion. vs onionweed →flixweed 58% match — A tall, herbaceous flowering plant, Descurainia sophia, related to mustard vs onionweed →cibol 57% match — A perennial onion plant, Allium fistulosum, commonly called Welsh onion. vs onionweed →hawksbeard 57% match — Any of various annual and perennial flowering plants of the genus Crepis, superficially resembling the dandelion. vs onionweed →