Distribution: Occurring on both sides of the Cascades in the northern half of Washington, particularly common in the Wenatchee Mountains; southern British Columbia, northern Washington, disjunct in the Wallowa Mts., and in southwestern Oregon and northern California.
Habitat: Open, rocky slopes near timberline in the mountains, chiefly on serpentine.
Origin: Native
Conservation Status: Not of concern
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PNW Herbaria: Specimen records of Polystichum lemmonii in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Polystichum lemmonii checklist entry.
E-Flora BC: Polystichum lemmonii atlas page.
CalPhotos: Polystichum lemmonii photos.
USDA Plants: Polystichum lemmonii information.