| − | Allium cepa, Linn. Common Onion. Tall, with large tubular lvs.: scape glaucous, much overtopping the lvs., swollen near middle; fls. white or bluish in a large globular head-like umbel: bulb not making many offsets, distinctly rounded at top and bottom. Var. bulbellifera, Bailey, has bulbels in the place of fls.,—the top, tree or Egyptian onion. Var. multiplicans, Bailey, has dividing bulbs,—the multiplier onion. Persia and adjacent regions.
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