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Home/Species/ Hoary Manzanita

Arctostaphylos canescens

Eastw.

Hoary Manzanita

G3Vulnerable (G3G4) Found in 21 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.159875
Element CodePDERI04060
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderEricales
FamilyEricaceae
GenusArctostaphylos
Other Common Names
hoary manzanita (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
Comprised of two subspecies (Hickman 1993; Kartesz 1999).
Conservation Status
Review Date2000-12-28
Change Date1996-07-29
Edition Date2000-12-28
Edition AuthorsMacBryde, Bruce
Rank Reasons
Arctostaphylos canescens (which is comprised of two subspecies) is in middle to northern California (200-1500 meters) and southwestern Oregon, occurring on dry gravelly to rocky slopes and ridges in chaparral and forest.
Ecology & Habitat
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaSNRYes
OregonSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (21)
California (15)
AreaForestAcres
Black ButteMendocino National Forest15,461
Blue Creek Rare ISix Rivers National Forest12,134
ChanchelullaShasta-Trinity National Forest3,915
East BeegumShasta-Trinity National Forest8,425
East ForkShasta-Trinity National Forest6,201
Elk CreekMendocino National Forest23,182
GrindstoneMendocino National Forest26,031
North Fork SmithSix Rivers National Forest37,898
PacksaddleSix Rivers National Forest3,862
Ship MountainSix Rivers National Forest11,936
SiskiyouKlamath National Forest54,039
Siskiyou BSix Rivers National Forest18,871
Slide CreekSix Rivers National Forest11,458
Snow MountainMendocino National Forest14,457
ThatcherMendocino National Forest16,652
Oregon (6)
AreaForestAcres
Calf - Copeland CreekUmpqua National Forest15,696
Castle Rock AppendageUmpqua National Forest4,649
Limpy RockUmpqua National Forest6,782
North KalmiopsisSiskiyou National Forests91,560
Skimmerhorn AppendageUmpqua National Forest1,820
South KalmiopsisSiskiyou National Forests104,477
References (5)
  1. Abrams, L. 1951. Illustrated flora of the Pacific states: Washington, Oregon, and California. Vol. 3. Geraniaceae to Scrophulariaceae. Stanford Univ. Press, Stanford, California. 866 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. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  5. Peck, M.E. 1961. A manual of the higher plants of Oregon. 2nd edition. Binsford & Mort, Portland, Oregon. 936 pp.