Tapertip Onion, Taper-tip Onion, Hooker's Onion: Allium acuminatum (Synonyms: Allium acuminatum var. acuminatum, Allium acuminatum var. cuspidatum, Allium cuspidatum)
Narrow-leaf Onion, Slim-leaf Onion: Allium amplectens (Synonyms: Allium acuminatum var. gracile, Allium attenuifolium, Allium attenuifolium var. monospermum, Allium monospermum, Allium occidentale, Allium serratum)
Nodding Onion: Allium cernuum (Synonyms: Allium allegheniense, Allium cernuum var. cernuum, Allium oxyphilum, Allium recurvatum)
Scalloped Onion, Olympic Onion: Allium crenulatum (Synonyms: Allium cascadense, Allium vancouverense, Allium watsonii)
Nevius' Garlic, Nevius' Onion: Allium douglasii var. nevii (Synonym: Allium nevii var. nevii)
Fragile Onion, Scilla-like Onion: Allium scilloides
Crow Garlic, Field Garlic, Wild Chives, Wild Garlic: Allium vineale (Synonym: Allium vineale ssp. vineale)