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Taxon  Report  
Collinsia antonina  Hardham
San Antonio collinsia
Collinsia antonina is an annual herb that is native to California.
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
Observation Search
~30 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

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

Name Status:
Accepted by JEF + CNPS

Alternate Names:
JEFCollinsia antonina ssp. purpurea
Information about  Collinsia antonina from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (COPA2)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[explorer.natureserve.org] Conservation status: Collinsia antonina is endemic to siliceous shales in Monterey Co., California. It is only known from about 4 extant sites and only about 125 plants are known for sure. Several threats affect this plant including grazing, road maintenance, bulldozing, shale collection, and weed control measures. No sites are currently protected. Up to date surveys are needed for all sites. (link added by Mary Ann Machi)

[calscape.org] General information: Collinsia is a genus of about 20 species of annual flowering plants, consisting of the blue eyed Marys and the Chinese houses. It was traditionally placed in the snapdragon family Scrophulariaceae, but following recent research in molecular genetics, it has now been placed in a much enlarged family Plantaginaceae. The genus is endemic to North America, and is named in honour of Zacchaeus Collins, a Philadelphia botanist of the late eighteenth/early nineteenth century. Of the 20 species, many of them found in California. (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: 07/17/2024).