Ownbey & Mingrone Allium nevii, known by the common name Nevius' onion or Nevius' garlic, is a plant species native to central Washington (Klickitat, Yakima, Kittitas and Chelan Counties) and north-central Oregon (Wasco and Hood River Counties) in the United States.

It grows in wet meadows and along stream banks at elevations up to 2000 m.[3][4] Allium nevii produces egg-shaped bulbs up to 2 cm across.

One plant will generally have 1-3 scapes, each round or slightly flattened and up to 25 cm tall.

[6] It has two basal leaves, one leaf-less scape, and a cluster of flowers at its tip.

[8] Both A. douglasii and A. nevii were placed in the Ownbey Allium falcifolium alliance[9] and subsequently by Traub in subsection Falcifolia, section Lophioprason, subgenus Amerallium (see Taxonomy of Allium).