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Taxon  Report  
Diplacus bicolor  A. Gray
Harlequin monkeyflower
Diplacus bicolor is an annual herb that is native to California, and endemic (limited) to California.
also called Mimulus whitneyi
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

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

Communities: Red Fir Forest, Lodgepole Forest, Subalpine Forest
Name Status:
Accepted by JEF

Alternate Names:
JEFEunanus bicolor
JEFMimulus nanus var. bicolor
JEFMimulus whitneyi
Information about  Diplacus bicolor from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

Photos on Calflora

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Photos on iNaturalist

ID Tips on PlantID.net

[floranorthamerica.org] Identification Discussion, Range: Discussion Diplacus bicolor is endemic to Fresno, Kern, and Tulare counties in the southern Sierra Nevada. The combination D. whitneyi (A. Gray) G. L. Nesom is illegitimate, as Mimulus whitneyi A. Gray 1886, is a replacement name based on Eunanus bicolor A. Gray 1868. Diplacus bicolor, D. bigelovii, D. constrictus, D. graniticola, D. layneae, and D. thompsonii appear to be closely related species, sometimes intergrading where sympatric. Plants of each species often produce flowers at all nodes and have dark magenta corollas with nearly regular to weakly bilabiate limbs and villous vestiture. Specimens of each species dry to a dark color. (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: 05/19/2024).