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Taxon  Report  
Eriogonum luteolum  Greene  var. caninum  (Greene) Reveal
Tiburon buckwheat
Eriogonum luteolum var. caninum is an annual herb that is native to California, and endemic (limited) to California.
also called Eriogonum caninum
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
~183 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Parent: Eriogonum luteolum
Genus: Eriogonum
Family: Polygonaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Ultramafic affinity: 5.5 - strict endemic

Communities: Chaparral, Coastal Prairie, Valley Grassland

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
JEF + CNPS + PLANTSEriogonum caninum
PLANTSEriogonum vimineum var. californicum
JEF + PLANTSEriogonum vimineum var. caninum
Information about  Eriogonum luteolum var. caninum from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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[efloras.org] Description, Habitat, Range: Plants protrate to spreading, 0.5-3 dm, glabrous. Aerial flowering stems mostly prostrate to weakly erect, 0.2-1 dm. Leaves basal and cauline; blade oblong-ovate. Inflorescences 3-30 cm. Involucres sessile or terminal on branchlets, turbinate, 3-4 mm. Flowers 1.5-2.5 mm; perianth white to rose. Achenes 1.4-1.6 mm. 2n = 24. Flowering May-Oct. Sandy to gravelly serpentine flats and slopes, mixed grassland and chaparral communities, oak and pine woodlands; 0-700 m; Calif. The elegant variety caninum is localized in the Tiburon area of Marin County and in the Oakland Hills of Alameda County. It is similar to E. nortonii in form and habit. North of Tiburon, and especially on Mt. Tamalpais, a sharp distinction between var. luteolum and var. caninum is not always possible. Variety caninum is protected at Tiburon near Old St. Hilary's Chapel in the John Thomas Howell Botanical Garden and in The Nature Conservancy's Ring Mountain Preserve, and near Oakland in the W. P. Coe State Park. (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: 04/12/2024).