Allium fistulosum

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APG IV Classification: DomainEukaryota • (unranked)Archaeplastida • RegnumPlantae • CladusAngiosperms • Cladusmonocots • OrdoAsparagales • FamiliaAmaryllidaceae • GenusAllium • Species: Allium fistulosum
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Fruits and seeds[edit]

Tree onion[edit]

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.