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Home/Species/ Hairy Whitethorn

Ceanothus oliganthus

Nutt.

Hairy Whitethorn

G4Apparently Secure (G3G5) Found in 37 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.157078
Element CodePDRHA040Y0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRhamnales
FamilyRhamnaceae
GenusCeanothus
Other Common Names
hairy ceanothus (EN) Hairy Ceanothus (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
As treated here (following Kartesz, 1999), excludes Ceanothus sorediatus, sometimes (e.g., Kartesz, 1994) included here as a variety or subspecies.
Conservation Status
Review Date2002-08-21
Change Date2002-08-27
Edition Date2002-08-21
Edition AuthorsHam, V.
Rank Reasons
Found on dry, shrubby slopes below 1300 m in the mountains of southern California from San Luis Obispo County south to Baja California Sur, Mexico, near the Volcano of the Three Virgins.
Ecology & Habitat
Other Nations (1)
United StatesNNR
ProvinceRankNative
CaliforniaSNRYes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (37)
California (37)
AreaForestAcres
Arroyo SecoAngeles National Forest4,703
Bear MountainLos Padres National Forest913
Black ButteLos Padres National Forest5,116
Black MountainLos Padres National Forest16,818
CamuesaLos Padres National Forest8,209
Chalk PeakLos Padres National Forest7,472
ColdwaterCleveland National Forest8,402
Cutca ValleyCleveland National Forest14,530
Dry LakesLos Padres National Forest17,043
Eagle PeakCleveland National Forest6,481
Fox MountainLos Padres National Forest52,072
Garcia MountainLos Padres National Forest7,850
JuncalLos Padres National Forest12,289
La BreaLos Padres National Forest14,031
La PanzaLos Padres National Forest4,954
LaddCleveland National Forest5,300
Little PineLos Padres National Forest1,315
Machesna MountainLos Padres National Forest12,271
Magic MountainAngeles National Forest15,542
Malduce BuckhornLos Padres National Forest14,177
MatilijaLos Padres National Forest5,218
No NameCleveland National Forest4,897
NordhoffLos Padres National Forest12,031
Pine CreekCleveland National Forest503
San DimasAngeles National Forest7,160
San Gabriel AddAngeles National Forest2,527
San Mateo CanyonCleveland National Forest65
Santa CruzLos Padres National Forest21,182
Sespe - FrazierAngeles National Forest4,254
Sespe - FrazierLos Padres National Forest106,910
Sheep MountainAngeles National Forest21,098
Sill HillCleveland National Forest5,294
Strawberry PeakAngeles National Forest7,245
TequepisLos Padres National Forest9,080
TrabucoCleveland National Forest23,341
WestforkAngeles National Forest4,407
White LedgeLos Padres National Forest18,632
References (4)
  1. Flora of North America Editorial Committee (FNA). 2016. Flora of North America north of Mexico. Vol. 12. Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York. xxiv + 603 pp.
  2. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  3. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  4. Wiggins, I.L. 1980. Flora of Baja California. Stanford Univ. Press, Stanford, California. 1025 pp.