Difference between revisions of "Ceanothus cuneatus var. ramulosus"

Greene

Fl. Francisc., 86. 1891.

Common names: Coast buck brush
Selected by author to be illustratedEndemic
Treatment appears in FNA Volume 12. Treatment on page 100. Mentioned on page 99, 102.
FNA>Volume Importer
FNA>Volume Importer
(No difference)

Revision as of 18:22, 24 September 2019

Shrubs, (0.5–)1–2.5 m. Stems erect, ascending, or spreading; branchlets gray to grayish brown. Leaf blades of fascicled and non-fascicled leaves cupped, widely oblanceolate, widely obovate, or orbiculate, 5–15 × 3–12 mm, length usually less than 2 times width, margins usually entire, rarely 1–4-toothed, apex rounded, truncate, or retuse. Flowers: sepals, petals, and nectary lavender to blue. Capsules 5–6 mm wide. 2n = 24.


Phenology: Flowering Feb–May.
Habitat: Rocky slopes, often on serpentine, chaparral, pine woodlands.
Elevation: 10–800 m.

Discussion

Variety ramulosus occurs disjunctly in the San Francisco Bay area (Alameda, Contra Costa, Lake, Marin, Napa, Santa Cruz, and Sonoma counties) and on coastal slopes in western San Luis Obispo and Santa Barbara counties. In both areas, plants occur primarily but not exclusively on serpentine soils. Some specimens in the San Francisco Bay area are intermediate to var. cuneatus, while others in San Luis Obispo and Santa Barbara counties suggest intergradation with var. fascicularis. Plants on Point Sal Ridge in western Santa Barbara County are low-growing, less than one meter, and have ascending to spreading stems, features that are retained in cultivation.

Selected References

None.

Lower Taxa

None.
Clifford L. Schmidt† +  and Dieter H. Wilken +
Greene +
Rhamnus cuneata +
Coast buck brush +
10–800 m. +
Rocky slopes, often on serpentine, chaparral, pine woodlands. +
Flowering Feb–May. +
Fl. Francisc., +
Selected by author to be illustrated +  and Endemic +
Ceanothus cuneatus var. ramulosus +
Ceanothus cuneatus +
variety +