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Taxon  Report  
Leptosiphon harknessii  (Curran) J. M. Porter & L. A. Johnson
Harkness' flaxflower
Leptosiphon harknessii is an annual herb that is native to California, and also found elsewhere in western North America.
also called Linanthus harknessii
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: Leptosiphon
Family: Polemoniaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest
Name Status:
Accepted by JEF + PLANTS
Alternate Names:
JEF + PLANTSLinanthus harknessii ssp. condensatus
PLANTSLinanthus harknessii ssp. harknessii
JEF + PLANTSLinanthus harknessii
Information about  Leptosiphon harknessii from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LEHA11)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[wikipedia] Description: Leptosiphon harknessii is a petite annual herb threadlike stem no more than about 15 centimeters long. The widely spaced leaves are each divided into very narrow linear lobes up to 1.5 centimeters long. The inflorescence at the tip of each branch of the stem is a single tiny flower, white or faintly blue in color, which is rolled up into a tube most of the time. The bloom period is June to August. (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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/05/2023).