logo Calflora, a 501c3 non-profit
Taxon  Report  
Aspidotis densa  (Brack.) Lellinger
Cliffbrake,   Lace fern
Aspidotis densa is a fern that is native to California, and also found elsewhere in North America and beyond.
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
Genus: Aspidotis
Family: Pteridaceae  
Category: fern  
PLANTS group:Fern
Jepson eFlora section: fern

Ultramafic affinity: 3.4 - strong indicator

Habitat: ridges

Communities: Douglas-Fir Forest, Yellow Pine Forest, Red Fir Forest, Northern Oak Woodland

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTSCheilanthes siliquosa
PLANTSCryptogramma densa
JEF + PLANTSOnychium densum
PLANTSPellaea densa
Information about  Aspidotis densa from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] As Ecologic Indicator: As ecologic indicator Aspidotis densa is a regional ecologic indicator on areas where ultramafic rocks (serpentine) are patchy, such as the Klamath and Siskayou Mountains of northern California and southwest Oregon and the Wenatchee Mountains of Washington.[4] Areas of serpentine soil can typically be seen as areas with sparse plant coverage or open forest bounded by closed forest on the non-ultramafic soils, with Aspidotis densa concentrated in the serpentine areas. (contributed by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/25/2024).