Thinopyrum pycnanthum (Gould) Barkworth
Annotated by Otting, N., 1 Jan 2009.

Oregon: Multnomah County: Linnton.
45.5989° N, 122.7858° W,
Uncertainty: 402 meters.

M.W. Gorman 4765, Aug 3, 1919
OSC, Catalog: ORE7943