Last modified on 22 November 2014, at 05:39

Allium fistulosum

APG III Classification: DomainEukaryota • (unranked)Archaeplastida • RegnumPlantae • Cladusangiosperms • Cladusmonocots • OrdoAsparagales • FamiliaAmaryllidaceae • GenusAllium • Species: Allium fistulosum
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Tree onionEdit

While tree onions are often listed as Allium cepa var. proliferum or Allium fistulosum bulbifera, recent research has shown that the tree onion is a cross between Allium cepa, the cultivated onion, and Allium fistulosum, the Welsh onion. The Royal Horticultural Society currently treats it as Allium cepa Proliferum Group.