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Taxon  Report  
Leptosiphon rosaceus  (Hook. f.) Battaglia
Rose leptosiphon
Leptosiphon rosaceus is an annual herb that is native to California.
also called Linanthus rosaceus
California Rare Plant Rank: 1B.1 (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
(31 records)
yellowone or more occurrences
within a 7.5-minute quadrangle
DJJJASONAFMM

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

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
JEF + PLANTSLinanthus parviflorus var. rosaceus
JEF + CNPSLinanthus rosaceus
Information about  Leptosiphon rosaceus from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LERO7)

Photos on Calflora

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Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[explorer.natureserve.org] Taxonomic Comments: Munz (1959) included Linanthus rosaceus in L. androsaceus ssp. croceus, which Kartesz (1999) includes in L. parviflorus (Kartesz (1999) does not place the name L. rosaceus). The morphometric analysis of Battaglia and Patterson (2001) supports acceptance at the species level; they place it in the genus Leptosiphon. (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: 12/03/2023).