Ceanothus cuneatus var. cuneatus
Buckbrush
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Family: Rhamnaceae · Type: Shrub · Native
Ceanothus cuneatus var. cuneatus (Buckbrush) is a native California shrub in the Rhamnaceae family, recognized by . Extremely widespread with high variability - opposite entire leaves and white flowers help narrow identification.
Buckbrush is a California native shrub found in the California Floristic Province (excluding the Channel Islands) and Modoc Plateau in sandy to rocky flats, slopes, and ridges at elevations below 2,133 meters. Flowering from February to May, this plant produces delicate white flowers clustered in small groups. Growing to less than 3 meters tall with generally ascending to spreading stems and gray-brown twigs, it forms a distinctive woodland or chaparral shrub. Its leaves are elliptic, oblanceolate, or obovate with acute to rounded tips, typically arranged with some leaves clustered together. The compact, flexible growth and white flower clusters make buckbrush a characteristic component of California's dry, open landscapes.
Identification and appearance
Key characters: 69 sympatric species. Extremely widespread with high variability - opposite entire leaves and white flowers help narrow identification.
Habitat and range
Habitat: Sandy to rocky flats, slopes, ridges
Elevation: < 2133 m
California counties: San Luis Obispo, Fresno, Kern, Tulare, Los Angeles, Sacramento, Riverside, Tehama, Butte, Shasta, Mariposa, El Dorado, San Diego, Stanislaus, Sierra, Amador, Monterey, Ventura, Santa Barbara, Lake, Placer, Tuolumne, Napa, Santa Clara, Modoc, San Bernardino, Humboldt, Santa Cruz, Nevada, San Mateo, San Benito, Sutter, Calaveras, Plumas, Marin, Mendocino, Siskiyou, Madera, Solano, San Joaquin, Trinity, Sonoma, Yolo, Glenn, Contra Costa, Alameda, Colusa, Del Norte, Alpine
Outside California: Oregon, northern Baja California
Bloom period
Ceanothus cuneatus var. cuneatus blooms Feb-May.
How to tell it apart
vs Rhamnus: Ceanothus has showy blue/white/pink flowers in dense clusters; Rhamnus has tiny inconspicuous greenish flowers.; vs Quercus: Ceanothus has showy flower clusters and small leaves; Quercus has acorns and distinctive lobed or toothed oak leaves.; vs Baccharis: Ceanothus has individual flowers with 5 separate petals; Baccharis has composite flower heads with tiny disc flowers.; vs Cercocarpus: Ceanothus has blue/white/pink flowers in clusters; Cercocarpus has tiny flowers with no petals and feathery fruiting tails.; vs Adenostoma: Ceanothus flowers have 5 distinct colored petals; Adenostoma has tiny white flowers and needle-like clustered leaves.
Frequently asked questions
Is Ceanothus cuneatus var. cuneatus native to California?
Yes. Ceanothus cuneatus var. cuneatus is native to California (recorded as native).
When does Ceanothus cuneatus var. cuneatus bloom?
Ceanothus cuneatus var. cuneatus blooms Feb-May.
Where in California does Ceanothus cuneatus var. cuneatus grow?
Ceanothus cuneatus var. cuneatus occurs in San Luis Obispo, Fresno, Kern, Tulare, Los Angeles, Sacramento, Riverside, Tehama and other counties, at elevations of < 2133 m.
What plant family does Ceanothus cuneatus var. cuneatus belong to?
Ceanothus cuneatus var. cuneatus is in the Rhamnaceae family, genus Ceanothus.
What habitat does Ceanothus cuneatus var. cuneatus grow in?
Ceanothus cuneatus var. cuneatus grows in Sandy to rocky flats, slopes, ridges.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · Index of California Plant Names · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.