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Taxon  Report  
Johnstonella costata  (Brandegee) Hasenstab & M.G. Simpson
ribbed cryptantha
Johnstonella costata is an annual herb that is native to California, and also found in Baja California and Arizona.
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
Observation Search
~351 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Genus: Johnstonella
Family: Boraginaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Creosote Bush Scrub
Name Status:
Accepted by JEF + CNPS + POWO
Alternate Names:
JEF + CNPSCryptantha costata
Information about  Johnstonella costata from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

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ID Tips on PlantID.net

[plants.sdsu.edu] Etymology: Etymology after Ivan M. Johnston, authority on Boraginaceae, 1898-1960 (link added 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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/15/2025).