Calflora Taxon Report
Polystichum kruckebergii  W. H. Wagner
Kruckeberg's hollyfern, Kruckeberg's sword fern
photo on Calflora
2025 David popp
photo on Calflora
2019 Matt Berger
photo on Calflora
2023 Dana York
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2018 Matt Berger
photo on Calflora
2018 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2018 Matt Berger
photo on Calflora
2018 Matt Berger
photo on Calflora
2025 David popp
photo on Calflora
2023 Dana York
photo on Calflora
2023 Dana York
photo on Calflora
2022 Dana York
photo on Calflora
2022 Dana York
photo on Calflora
2022 Dana York
photo on Calflora
2025 David popp
Polystichum kruckebergii is a fern (rhizomatous) that is native to California, and also found elsewhere in western North America.
California Rare Plant Rank: 4.3 (limited distribution).
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
DJJJASONAFMM

Bloom Period
Genus: Polystichum
Family: Dryopteridaceae  
Category: fern  
PLANTS group:Fern
Jepson eFlora section: fern
Communities: Red Fir Forest, Subalpine Forest
Name Status:
Accepted by JEF + CNPS + PLANTS + POWO
External links:

[Wikipedia] Range, Habitat: It is native to western North America from Alaska to Utah to California, where it grows in rocky mountain habitat in subalpine and alpine climates. (link added by Mary Ann Machi)

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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