DISTRIBUTION AND OCCURRENCE
SPECIES: Rubus ursinus | Trailing Blackberry 



GENERAL DISTRIBUTION : 
Trailing blackberry grows from British Columbia to northern California
and eastward to central Idaho [6,27,36].  It is particularly common from
the Cascades to the Pacific Coast [27].  Trailing blackberry extends
through southern California into Mexico [9,55].  The subspecies
macropetalus occurs from British Columbia and Idaho southward into
northern California [36].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES23  Fir - spruce
   FRES24  Hemlock - Sitka spruce
   FRES25  Larch
   FRES27  Redwood
   FRES28  Western hardwoods


STATES : 
     AZ  CA  ID  OR  BC  MEXICO


ADMINISTRATIVE UNITS : 
     CHIS  CRLA  MORA  NOCA  PORE  SAMO
     WHIS


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    2  Cascade Mountains
    3  Southern Pacific Border
    5  Columbia Plateau
    8  Northern Rocky Mountains


KUCHLER PLANT ASSOCIATIONS : 
   K001  Spruce - cedar - hemlock forest
   K002  Cedar - hemlock - Douglas-fir forest
   K003  Silver fir - Douglas-fir forest
   K004  Fir - hemlock forest
   K006  Redwood forest
   K012  Douglas-fir forest
   K014  Grand fir - Douglas-fir forest
   K029  California mixed evergreen forest


SAF COVER TYPES : 
   210  Interior Douglas-fir
   211  White fir
   221  Red alder
   222  Black cottonwood - willow
   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
   232  Redwood
   234  Douglas-fir - tanoak - Pacific madrone
   246  California black oak
   249  Canyon live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Trailing blackberry is well represented in a wide variety of plant
communities [9,54,55].  It has been identified as a codominant with
Columbia brome (Bromus vulgaris) and Shasta red fir (Abies magnifica
var. shastensis) in certain plant communities of the Cascades [8].
Trailing blackberry is listed as a codominant in the following
publication:

Natural vegetation of Oregon and Washinton [21]
 
Associated species:  Trailing blackberry grows as an understory species
with Shasta red fir, Pacific silver fir (A. amabilis), spruce (Picea
spp.), Douglas-fir (Pseudotsuga mensiesii), white fir (A. concolor),
grand fir (A. grandis), western redcedar (Thuja plicata), western
hemlock (Tsuga heterophylla), bigleaf maple (Acer macrophyllum), and red
alder (Alnus rubra) [1,19,21,32,56].  Trailing blackberry also occurs in
many West Coast riparian communities dominated by willows (Salix spp.)
or cottonwoods (Populus spp.) [23.42,62], as a codominant with
salmonberry (Rubus spectabilis) and thimbleberry (R. parviflorus), and
in baccharis (Baccharis spp.) shrub communities of the northern
California coast [31].  Common understory associates include Oregon
oxalis (Oxalis oregana), sweetscented bedstraw (Galium triflorum),
elderberry (Sambucus spp.), and other blackberries, raspberries, or
brambles (Rubus spp.)  [21].

Related categories for Species: Rubus ursinus | Trailing Blackberry