DISTRIBUTION AND OCCURRENCE
SPECIES: Dactylis glomerata | Orchardgrass 



GENERAL DISTRIBUTION : 
Orchardgrass was introduced to the eastern United States from Europe in
1760.  It is widely planted in the United States and Canada, and is
found from Nova Scotia south to the Carolinas, west to central
California, and north to coastal British Columbia [21,67].
  


ECOSYSTEMS : 
   FRES11  Spruce - fir
   FRES19  Aspen - birch
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES26  Lodgepole pine
   FRES29  Sagebrush
   FRES34  Chaparral - mountain shrub
   FRES36  Mountain grasslands
   FRES37  Mountain meadows
   FRES38  Plains grasslands
   FRES39  Prairie
   FRES40  Desert grasslands
   FRES41  Wet grasslands


STATES : 
     AZ  AR  CA  CO  CT  DE  GA  HI  ID  IL
     IN  IA  KS  KY  ME  MD  MA  MI  MN  MO
     MT  NE  NV  NH  NJ  NM  NY  NC  ND  OH
     OK  OR  PA  RI  SC  SD  TN  TX  UT  VT
     VA  WA  WV  WI  WY  AB  BC  NF  NS  ON
     PQ


ADMINISTRATIVE UNITS : 
     ACAD  AGFO  ALPO  ANTI  ARCH  BISO
     BICA  BLCA  BLRI  BRCA  BUFF  CACO
     CARE  CATO  CHCH  COLO  COLM  CODA
     CRLA  CRMO  CUGA  CUVA  DEWA  DETO
     FIIS  FODC  GATE  GWCA  GWMP  GLAC
     GLCA  GRCA  GRTE  GRSA  GRSM  HALE
     HAVO  HOSP  INDU  JODA  JOFL  LAVO
     MACA  MANA  MEVE  MORA  NATR  NABR
     NERI  NOCA  OBRI  OLYM  OZAR  PIRO
     PORE  REDW  RICH  ROCR  ROMO  SAJH
     SAMO  SHEN  SHIL  SLBE  TICA  VAFO
     WACA  YELL  ZION


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    2  Cascade Mountains
    4  Sierra Mountains
    5  Columbia Plateau
    6  Upper Basin and Range
    7  Lower Basin and Range
    8  Northern Rocky Mountains
    9  Middle Rocky Mountains
   10  Wyoming Basin
   11  Southern Rocky Mountains
   12  Colorado Plateau
   13  Rocky Mountain Piedmont
   14  Great Plains
   15  Black Hills Uplift
   16  Upper Missouri Basin and Broken Lands


KUCHLER PLANT ASSOCIATIONS : 
NO-ENTRY


SAF COVER TYPES : 
NO-ENTRY


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
An introduced species, orchardgrass is not generally used for habitat
typing.  However, Sugihara and others [68] have described an Oregon
white oak (Quercus garryana)/orchardgrass vegetation type in Redwood
National Park, California.  This vegetation type occurs exclusively as
closed canopy stands, and is predominant on lower slopes.  A mixture of
tall perennial grasses and perennial forbs codominates the understory
with orchardgrass.  The shrub layer is sparse.  Other important
associates in this type include yerba buena (Satureja douglasii),
mountain sweetroot (Osmorhiza chilensis), California strawberry
(Fragaria californica), western sanicle (Sanicula crassicaulis),
American vetch (Vicia americana), and climbing bedstraw (Galium
nuttallii).  California honeysuckle (Lonicera hispidula) and rigid
betony (Stachys rigida) are common characteristic species [68].

Smith [64] has described an Oregon white oak/poison oak (Rhus
diversiloba)/orchardgrass vegetation type as an even-aged woodland with
three well-developed strata.  Oregon white oak and California black oak
(Quercus kellogii) are the dominant overstory trees; poison oak and wild
rose (Rosa spp.) are the dominant midstory or shrub-layer; and
orchardgrass and hedgehog dogtail (Cynosurus echinatus) are codominant
grasses [64].

Orchardgrass is listed as a dominant or codominant understory plant in
the following publications:

Plant associations within the Interior Valleys of the Umpqua River
  Basin, Oregon [64].  
The principal plant associations of the Saint Lawrence Valley [74].
Vegetation of the Bald Hill oak woodlands, Redwood National Park,
  California [68].

Related categories for Species: Dactylis glomerata | Orchardgrass