Welsh Onion, or CIBOL (Allium fistulosum), a perennial plant, a native of Siberia, with fistular leaves and no bulb, and a flavour resembling garlic. It is cultivated in various parts of Europe, including England. 'Welsh' here only means, as it used to do, 'foreign' (like the German Wälsch).
Welsh Onion
Chambers's Encyclopaedia, Volume 10: Swastika to Zyrianovsk and Index, p. 606
Source scan(s): p. 0633