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Taxon  Report  
Diplacus traskiae  (A.L. Grant) G.L. Nesom
Santa Catalina Island monkeyflower
Diplacus traskiae is an annual herb that is native to California.
also called Mimulus traskiae
California Rare Plant Rank: 1A (presumed extinct).
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
~2 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Genus: Diplacus
Family: Phrymaceae  
(Scrophulariaceae)
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Coastal Sage Scrub
Name Status:
Accepted by JEF + CNPS

Alternate Names:
JEF + CNPSMimulus traskiae
Information about  Diplacus traskiae from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[deadasthedodo.com] Historical range, Presumed extinct: The Santa Catalina Monkeyflower is apparently known exclusively from the type material that was collected in 1901 or 1904 (depending on the source); the species was restricted to Santa Catalina Island in the Channel Islands group offshore the Pacific coast of California, USA. The species presumably disappeared due to grazing by introduced ungulates and is now considered extinct. (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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/25/2024).