Polystichum andersonii Hopkins × Polystichum munitum (Kaulf.) Presl

Washington: Snohomish County: Perry Creek drainage; circa 0.5 miles above trailhead and northeast end of Forest Service Road 4063; northwest slope of Dickerman Mountain. West slope of Cascade Mountains, Mt. Baker-Snoqualmie National Forest. Elev. 2197 ft.
48° 4.4' N, 121° 29.5' W; T30N R10E S23
Shaded trailside; northwest aspect; steep mossy and rocky slope. With Blechnum spicant, Acer circinatum, Athyrium filix-femina, Botrychium multifidum, Polystichum andersonii, P. munitum. Cepitose, rare, one plant seen. Fronds dark green as in P. munitum, and more leathery than P. andersonii at this site. Lower pinnae less divided than P. andersonii, much more divided than P. munitum. Sheet 1 of 3. Phenology: Spores.

Peter F. Zika 19084, Sep 20, 2003
WTU, Accession: 354256, Barcode: WTU-V-021028