Difference between revisions of "Ceanothus sonomensis"

J. T. Howell

Leafl. W. Bot. 2: 162. 1939.

Common names: Sonoma ceanothus
EndemicConservation concern
Treatment appears in FNA Volume 12. Treatment on page 103. Mentioned on page 78, 95, 102.
imported>Volume Importer
imported>Volume Importer
 
Line 54: Line 54:
 
|publication year=1939
 
|publication year=1939
 
|special status=Endemic;Conservation concern
 
|special status=Endemic;Conservation concern
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V12/V12_844.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_844.xml
 
|genus=Ceanothus
 
|genus=Ceanothus
 
|subgenus=Ceanothus subg. Cerastes
 
|subgenus=Ceanothus subg. Cerastes

Latest revision as of 20:17, 5 November 2020

Shrubs, 0.5–1 m, often moundlike. Stems erect to ascending, not rooting at nodes; branchlets gray to grayish brown, rigid, strigillose, glabrescent. Leaves not fascicled; petiole 0–1 mm; blade cupped, widely obovate to suborbiculate, 5–12 × 2–10 mm, base cuneate, margins not revolute, wavy, spinose-dentate, teeth 2–4, apex widely notched; abaxial surface pale green or grayish green and glaucous, strigillose on veins, adaxial surface shiny green, glabrous. Inflorescences axillary or terminal, 0.8–1.5 cm. Flowers: sepals, petals, and nectary blue to lavender. Capsules 4–5 mm wide, usually not, sometimes weakly lobed; valves smooth, horns subapical, minute to ± prominent, erect, intermediate ridges absent. 2n = 24.


Phenology: Flowering Mar–Apr.
Habitat: Sandy to rocky soils derived mostly from volcanic substrates, slopes, ridges, chaparral.
Elevation: 100–700 m.

Discussion

Ceanothus sonomensis is distinctive in having spinose-dentate, few-toothed leaves, and slender fruit horns two to three millimeters; it occurs at a few scattered localities in the mountains of Napa and Sonoma counties.

Selected References

None.

Lower Taxa

None.
... more about "Ceanothus sonomensis"
Clifford L. Schmidt† +  and Dieter H. Wilken +
J. T. Howell +
Ceanothus sect. Cerastes +
Sonoma ceanothus +
100–700 m. +
Sandy to rocky soils derived mostly from volcanic substrates, slopes, ridges, chaparral. +
Flowering Mar–Apr. +
Leafl. W. Bot. +
Endemic +  and Conservation concern +
Ceanothus sonomensis +
Ceanothus subg. Cerastes +
species +