CONTENTS 



INTRODUCTION 5 



THE STUDY AREA 6 



MATERIALS AND METHODS 8 



Data Collection 8 



Data Analysis 9 



Taxonomic Considerations 9 



RESULTS 10 



General Vegetation Overview 10 



The Classification 10 



Forests 10 



1. Abies lasiocarpa / Arnica cordif olia c.t. 10 



2 . Abies las iocarpa / Clematis columbiana 



c.t 11 



3. Abies las iocarpa / Ribes montiqenum c.t. 11 



4 . Abies las iocarpa / Vaccinium scopariuro 



c.t 12 



5. Pinus f lex ills / Festuca idahoensis c.t. 13 



6. Pinus f lexilis / Juniperus communis c.t. 13 



7 . Pseudotsuqa menziesii / Aqropyron spicatum 



c.t 14 



8 . Pseudotsuqa menziesii / Festuca idahoensis 



c.t 15 



9 . Pseudotsuqa menziesii / Cercocarpus 



ledif olius c.t 15 



10. Pseudotsuqa menziesii / Symphoricarpos 

 oreophilus c.t 16 



Woodlands 17 



11. Juniperus osteosperma / Aqropyron spicatum 



c.t 17 



12 . Juniperus osteosperma / Artemisia 

 tridentata c.t 18 



13 . Juniperus osteosperma / Cercocarpus 



ledif olius c.t 18 



14. Juniperus scopulorum / Artemisia nova 



c.t 19 



15. Pinus f lexilis - Juniperus osteosperma 



c.t 20 



16. Pinus f lex i lis - Juniperus scopulorum 



c.t 20 



Shrublands 21 



17. Artemisia nova / Agropyron spicatum c.t. 21 



18. Artemisia pedatif ida / Aqropyron spicatum 



c.t 22 



19. Artemisia pedatif ida - Atriplex nuttallii 



c.t 23 



20. Artemisia tridentata / Agropyr on smithii 



c.t 24 



3 



