Calflora Taxon Report
Boechera johnstonii  (Munz) Al-Shehbaz
Johnston's rockcress
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2019 Matt Berger
photo on Calflora
2024 Erin Bergman
photo on Calflora
2024 Erin Bergman
Boechera johnstonii is a perennial herb that is native to California, and endemic (limited) to California.
also called Arabis johnstonii
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
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: Boechera
Family: Brassicaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot
Communities: Yellow Pine Forest, Chaparral
Name Status:
Accepted by JEF + CNPS + POWO
Alternate Names:
JEFArabis hirshbergiae
JEF + CNPSArabis johnstonii
External links:

[efloras.org] Habitat, Range: Flowering Feb. to Mar. Rocky areas and gravelly soil in chaparral and oak-pine savannas; of conservation concern; 1300 to 1700 m; Calif. (link added by Mary Ann Machi)

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

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