Species Details

Arctostaphylos klamathensis

Klamath manzanita

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Photo of Arctostaphylos klamathensis
©2014 Dean Wm. Taylor
Photo of Arctostaphylos klamathensis
©2015 Julie Kierstead Nelson
Photo of Arctostaphylos klamathensis
©2015 Julie Kierstead Nelson
Scientific Name:
Arctostaphylos klamathensis Edwards, Keeler-Wolf & Knight
Common Name:
Klamath manzanita
Family: Ericaceae
Element Code: PDERI041R0
USDA Plants Symbol: ARKL
Synonyms/Other Names:
Lifeform: perennial evergreen shrub
Blooming Period: May-Aug
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Elevation:
1370 - 2250 meters
4495 - 7380 feet
General Habitats:
  • Chaparral (montane)
  • Lower montane coniferous forest
  • Subalpine coniferous forest
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Gabbroic (sometimes)
  • Rocky
  • Serpentine (sometimes)
Notes:
Threatened by logging and road maintenance. See Four Seasons 6(4):20 (1983) for original description.
Threats:
Taxonomy:
Threat List Total: 7
Total EOs % of EOs
EOs with Threat Listed: 33 69 %
THREAT LIST:
Logging 29 60%
Improper burning regime 8 16%
Road/trail construction/maint. 7 14%
Biocides 4 8%
Recreational use (non-ORV) 3 6%
Total Occurrences: 48
Element Occurrence Ranks:
A B C D X U
11 19 4 0 0 14
Occurrence Status:
Historical >20 Years 15
Recent <=20 Years 33
Presence:
Presumed Extant 48
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Carrville (4112216), Chicken Hawk Hill (4112214), Covington Mill (4012287), Mumbo Basin (4112225), Scott Mountain (4112236), Seven Lakes Basin (4112224), Siligo Peak (4012288), South China Mtn. (4112235), Tangle Blue Lake (4112226), Whisky Bill Peak (4112215), Ycatapom Peak (4112217)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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