Apocynum androsaemifolium L. × Apocynum cannabinum

Washington: Yakima County: Boulder Cave, near.
46.957486° N, 121.098709° W,
Datum: WGS84. Uncertainty: 1784 meters. Coordinate Source: Google Maps. "comments: added 1 mi to extent for near, from US Forest Service (https://www.fs.usda.gov/recarea/okawen/recarea/?recid=58133), the cave is 3/4 mi hike west from the campground on Devel Creek;http://georeferencing.org/georefcalculator/docs/GeorefGuide.htm

Marcus C. Huntley s.n., Aug 5, 1950
PSM, Accession: 4981