DISTRIBUTION AND OCCURRENCE
SPECIES: Vitis californica | California Wild Grape 



GENERAL DISTRIBUTION : 
California wild grape is endemic to southern Oregon and California.  It
is distributed in the Coast Ranges from Douglas County, Oregon, south to
San Luis Obispo County, California; in the Klamath Mountains, the
Cascade Range, and the Sierra Nevada from Siskiyou to Kern counties,
California; and in the Central Valley [19,21].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES27  Redwood
   FRES28  Western hardwoods
   FRES34  Chaparral - mountain shrub
   FRES41  Wet grasslands
   FRES42  Annual grasslands


STATES : 
     CA  OR


ADMINISTRATIVE UNITS : 
     WHIS  YOSE


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    3  Southern Pacific Border
    4  Sierra Mountains


KUCHLER PLANT ASSOCIATIONS : 
   K005  Mixed conifer forest
   K006  Redwood forest
   K029  California mixed evergreen forest
   K030  California oakwoods
   K048  California steppe
   K049  Tule marshes


SAF COVER TYPES : 
   221  Red alder
   222  Black cottonwood - willow
   232  Redwood
   233  Oregon white oak
   234  Douglas-fir - tanoak - Pacific madrone
   243  Sierra Nevada mixed conifer
   244  Pacific ponderosa pine - Douglas-fir
   245  Pacific ponderosa pine
   246  California black oak
   249  Canyon live oak
   250  Blue oak - Digger pine
   255  California coast live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
California wild grape is a conspicuous vine of riparian forests and
woodlands.  It is a minor to major component of valley oak (Quercus
lobata) riparian, mixed-oak riparian, Fremont cottonwood (Populus
fremontii), black cottonwood (P. trichocarpa), cottonwood-willow,
mixed-hardwood riparian, red alder (Alnus rubra), and white alder (A.
rhombifolia) communities [28].  It may dominate the lower and midstories
and reach into the canopy, particularly in valley oak and Fremont
cottonwood forests [10].  The following classifications name California
wild grape as a dominant in community types:

Terrestrial natural communities of California [10]
The vascular plant communities of California [28]

Tree associates of California wild grape not listed in Distribution and
Occurrence include California black walnut (Juglans hindsii), California
sycamore (Platanus racemosa), interior live oak (Quercus wislizenii),
California box elder (Acer negundo var. californicum), Oregon ash
(Fraxinus latifolia), California bay (Umbellularia californica), and
California buckeye (Aesculus californica) [3,8,10,15].

Common shrub associates are Mexican tea (Chenopodium ambrosoides),
California blackberry (Rubus vitifolius), coyote bush (Baccharis
pilularis var. consanguinea), California wild rose (Rosa californica),
valley willow (Salix hindsiana), and arroyo willow (S. lasiolepis)
[3,8,9].  Dutchman's pipe vine (Aristolochia californica), poison-oak
(Toxicodendron diversilobum), and wild clematis (Clematis spp.) are vine
associates [3,12].

Groundcover associates include Bermuda grass (Cynodon dactylon), holly
fern (Polystichum lonchitis), and blue vervain (Verbena hastata)
[3,15,18].

Related categories for Species: Vitis californica | California Wild Grape