APPENDIX C 



COMPREHENSIVE LIST OF SOUTHWESTERN MONTANA PLANT COMMUNITIES 



Types that are uncommon in Montana are highlighted. 



The G and S rankings given for each community type are 

 estimates of the global and state rarity, respectively, for that 

 type. These rankings have been determined by MTNHP staff in 

 coordination with The Nature Conservancy and professional 

 ecologists in Montana. The rankings are defined as follows: 



Gl and SI 

 G2 and 52 

 G3 and S3 

 G4 and S4 

 G5 and 55 



1 to 5 known occurrences 

 6 to 2 known occurrences 

 21 to 100 known occurrences 

 > 100 known occurrences 

 essentially ineradicable,/ , 



^ 



''^- survty- 



TYPE NAME 



RANK 

 G S 



ABIES LA5I0CARPA/ALNU5 SINUATA 



ABIES LASIOCARPA/ARNICA CORDIFOLIA ^ 



ABIES LASIOCARPA/CALAMAGROSTIS CANADENSIS/^ 



" ABIES LASIOCARPA/CALAMAGROSTIS RUBESCENS i^ 



ABIES LASIOCARPA/CAREX GEYERI - 



ABIES LAS IOC ARPA/ CLEMATIS PSEUDOALPINA ,,. 



ABIES LAS lOCARPA/ GALIUM TRIFLORUM 



ABIES LAS lOCARPA/ LEDUM GLANDULOSUM-'^ 



ABIES LAS lOCARPA/ LINNAEA BOREALIS ' 



ABIES LAS lOCARPA/ LUZULA HITCHCOCKII 



ABIES LASIOCARPA/MENZIESIA FERRUGINEA ' 



ABIES LASIOCARPA-PINUS ALBICAULIS/VACCINIUM SCOPARIUM 



ABIES LASIOCARPA/RIBES MONTIGENUM 



ABIES LASIOCARPA/VACCINIUM CESPITOSUM/" 



ABIES LASIOCARPA/VACCINIUM GLOBULARE •'' 



ABIES LASIOCARPA/VACCINIUM SCOPARIUM^-^ 



ABIES LASIOCARPA/XEROPHYLLUM TENAX i^ 



AGROPYRON DASYSTACHYUM/PHACELIA HASTATA 



G2? S2? 



^§RQI>xiQN..,si5.i5;iy;.i., 



■^■'- 1 



le 



G4 



S3 



AGROPYRON S PI CATUM/ AGROPYRON SMITHII ^^ 



AGROPYRON S PI CATUM/ BOUTELOUA GRACILIS . 



AGROPYRON SPICATUM/ORYZOPSIS HYMENOIDES 



AGROPYRON SPICATUM/POA SANDBERGII ^ 



^^^-cu. 



ALNUS INCANA 



G4 



S3 



64 



