[Cal-IPC] Native to South America: Nothoscordum gracile (false garlic, false onionweed) is a perennial herb/ (family Liliaceae) with white flowers and long narrow grasslike leaves which is found in the central western ranges and south coast ranges of California. It is native to South America. False garlic grows in grasslands and spreads via seed and underground bulblets. Seeds are dispersed via wind, water and dumped garden waste. It is highly invasive and difficult to control. If using manual control, dig plants out rather than pulling them as pulling facilitates bulbs to split and multiply. (contributed by Mary Ann Machi)

[Wikipedia] Distribution: Native to South America, it is widely naturalized in Australia, USA, South Asia, Southern Europe and Africa. A garden escape, it is a widespread, highly invasive and common weed in gardens that is hard to eradicate. It grows in grasslands, lawns, footpaths, pastures, roadsides and disperses through seed and underground bulblets. Its seeds can be dispersed by wind, water and dumped garden waste.[5] (contributed by Mary Ann Machi)