DISTRIBUTION AND OCCURRENCE
SPECIES: Arctostaphylos columbiana | Hairy Manzanita 



GENERAL DISTRIBUTION : 
Hairy manzanita is distributed in the Coast Ranges from Sonoma County,
California, north to Vancouver Island and Vancouver, British Columbia
[21,24].  The largest populations are in southwest Oregon [10].  Hairy
manzanita occurs infrequently on western slopes of the Cascade Range of
Oregon and Washington [21].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES24  Hemlock - Sitka spruce
   FRES27  Redwood
   FRES28  Western hardwoods


STATES : 
     CA  OR  WA  BC


ADMINISTRATIVE UNITS : 
     MORA  OLYM  REDW


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    2  Cascade Mountains
    3  Southern Pacific Border


KUCHLER PLANT ASSOCIATIONS : 
   K001  Spruce - cedar - hemlock forest
   K002  Cedar - hemlock - Douglas-fir forest
   K003  Silver fir - Douglas-fir forest
   K005  Mixed conifer forest
   K009  Pine - cypress forest
   K010  Ponderosa shrub forest
   K011  Western ponderosa forest
   K012  Douglas-fir forest
   K029  California mixed evergreen forest
   K030  California oakwoods


SAF COVER TYPES : 
   223  Sitka spruce
   224  Western hemlock
   225  Western hemlock - Sitka spruce
   226  Coastal true fir - hemlock
   227  Western redcedar - western hemlock
   228  Western redcedar
   229  Pacific Douglas-fir
   230  Douglas-fir - western hemlock
   231  Port-Orford-cedar
   232  Redwood
   234  Douglas-fir - tanoak - Pacific madrone
   244  Pacific ponderosa pine - Douglas-fir
   245  Pacific ponderosa pine
   247  Jeffrey pine
   249  Canyon live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Hairy manzanita is a component of understories of various western
coniferous forests [20].  It also occurs as scattered plants or in small
clusters interspersed with other shrub species in forest clearings
[10]. 

Overstory associates of hairy manzanita not listed in Distribution and
Occurrence include golden chinquapin (Chrysolepsis chrysophylla), bishop
pine (Pinus muricata), Bolander pine (P. contorta var. bolanderi), shore
pine (P. contorta var. contorta), pygmy cypress (Cupressus goveniana
spp. pygmaea), and grand fir (Abies grandis) [7,12,36].

Common shrub associates are Oregon-grape (Mahonia nervosa), salal
(Gaultheria shallon), whiteleaf manzanita (Arctostaphyloa viscida),
snowbrush (Ceanothus velutinus), deerbrush (C. integerrimus), and vine
maple (Acer circinatum) [9,12].

Herbaceous associates include beargrass (Xerophyllum tenax), Canada
horseweed (Conyza canadensis), darkblue penstemon (Penstemon
davidsonii), Oregon stonecrop (Sedum oregonese), and Ross sedge (Carex
rossii).  Parsley fern (Cryptogramma acrostichoides) is a common fern
associate [11,12,27].

The following publication names hairy manzanita as a dominant understory
species:

Terrestrial natural communities of California [16]

Related categories for Species: Arctostaphylos columbiana | Hairy Manzanita