OR1

Oregon Trail, Baker County, Oregon, USA.  National Historic Site (interpretive center).  44º48.877' N latitude, 117º44.002' W longitude; 3900 feet elevation.   Date of sampling: 30 June 1999.

Dominants vascular plants at the site:  Artemisia tridentata, Bromus tectorum

Mean thickness of algal crust: 25.8 mm
Mean thickness of moss crust:  22.6 mm

Cover summary:

Type Cover            % Cover
Shrubs                          0.8
Annuals                       0.0
Perennial grasses     36.3
Perennial forbs           0.4
Algal crust                 25.0
Bryophytes                  8.2
Lichens                         5.4
Bare Soil                       0.0
Rock                              3.5
Gravel                           0.4
Litter                           19.9
Cactus                           0.0