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Taxon  Report  
Leptosiphon floribundus  (A. Gray) J. M. Porter & L. A. Johnson  ssp. hallii  (Jeps.) J. M. Porter & L. A. Johnson
Santa rosa mountains leptosiphon
Leptosiphon floribundus ssp. hallii is a perennial herb that is native to California, and endemic (limited) to California.
also called Linanthus floribundus ssp. hallii
California Rare Plant Rank: 1B.3 (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
~37 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

Bloom Period
Parent: Leptosiphon floribundus
Genus: Leptosiphon
Family: Polemoniaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Communities: Creosote Bush Scrub
Name Status:
Accepted by JEF + CNPS
Alternate Names:
JEF + CNPSLinanthus floribundus ssp. hallii
PLANTSLeptosiphon floribundum ssp. hallii
Information about  Leptosiphon floribundus ssp. hallii 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

[fs.usda.gov] Rarity: Very little is known about this phlox family member, which is limited to a small range of mountains in southern 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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/18/2025).