| Ceanothus oliganthus | |
|---|---|
| |
| Ceanothus oliganthus var. sorediatus | |
| Conservation status | |
 Vulnerable (NatureServe) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rhamnaceae |
| Genus: | Ceanothus |
| Species: | C. oliganthus |
| Binomial name | |
| Ceanothus oliganthus Nutt. | |
| Synonyms | |
|
Ceanothus divaricatus | |
Ceanothus oliganthus is a species of shrub in the family Rhamnaceae known by the common name hairy ceanothus or hairy-leaf ceanothus.
The variety of this species known as jimbrush (var. sorediatus) is sometimes treated as a separate species.
Habitat and range
It occurs in California and Baja California, where it occurs through all of the coastal mountain ranges in dry habitat such as chaparral.
Description
This is a large, erect shrub approaching 3 meters in maximum height.
Leaves and stems
The stipules (small leaf-like structures on the stems at the base of the leaf stem, are thin and fall off early.
The evergreen leaves are alternately arranged and may be up to 4 centimeters long. They are dark green on top, paler and hairy on the underside, and are edged with glandular teeth. Leaves have 3 main veins rising from the base. Leaves have a toothed edge. The leaf is covered with short, soft hairs on the top.
Branchlets are flexible, not stiff.
Inflorescence and fruit
The inflorescence is a cluster or series of clusters of blue or purple flowers.
The fruit is a capsule which may be hairy or not, depending on variety.
The fruit is not horned.
It blooms April to May.
References
- "NatureServe Explorer". NatureServe Explorer. NatureServe. 2022. Retrieved 28 May 2022.
- NRCS. "Ceanothus oliganthus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 6 June 2016.
- ^ Flowering Plants of the Santa Monica Mountains, Nancy Dale, 2nd Ed., 2000, p. 167
- USDA Plants Profile: var. sorediatus
- Ceanothus oliganthus at CalFlora
- Jepson Herbarium
External links
- Jepson Manual eFlora (TJM2) treatment of Ceanothus oliganthus
- Ceanothus oliganthus — U.C. Photo gallery
| Taxon identifiers | |
|---|---|
| Ceanothus oliganthus |
|
 | This Rhamnaceae article is a stub. You can help Misplaced Pages by expanding it. |
- NatureServe vulnerable species
- Ceanothus
- Natural history of the California chaparral and woodlands
- Natural history of the California Coast Ranges
- Natural history of the Peninsular Ranges
- Natural history of the San Francisco Bay Area
- Natural history of the Santa Monica Mountains
- Natural history of the Transverse Ranges
- Flora of Baja California
- Plants described in 1838
- Taxa named by Thomas Nuttall
- Flora of Baja California Sur
- Rhamnaceae stubs