Salix ×sericans Tausch ex A. Kern.
[= Salix ×smithiana]
Remarks: S. Caprea X S. viminalis.

Washington: King County: In the backyard of 1928 5th Avenue West, Seattle.
47.60639° N, 122.33083° W,
Datum: WGS 84. Uncertainty: 10000 meters. Coordinate Source: GeoLocate.
A male, its trunk girth 8.5 feet and height 35 feet. The only specimen of this extremely rare hybrid pussy willow known in Seattle. This taxon is often miscalled S. x Smithiana Willd. (=S. cinerea X viminalis). Phenology: Fertile.

Aruthur Lee Jacobson s.n., Nov 17, 1987
WTU, Accession: 314407