16 



Picea enqelmanni i Parry ex Engelm. 

 Abies lasiocarpa (Hook.) Nutt. 

 Carsx rostrata Stokes ex With. 

 Deschampsia cespi tosa (L.) Beauv. 

 Tr isetum canescens Buckl. 

 Tr isetum ygolf i i Vasey 

 Mel ica subulata (Briseb.) Scribn. 

 Lupinus polyphvl lus Lindl. 

 Habenar ia saccata Greene 

 Ledum qlandulosum Nutt. 

 Polemonium occ identale Greene 

 Mimulus quttatus DC. 



4. Dominance and "frequency of the taxon: 



Tr isetum or thochaetum is very scarce and 

 scattered in the communities with which it 

 is associated) and represents much less than 

 IV. of the cover in these areas. 



5. Successional phenomena: The known sites are 

 within the ecotonal areas along meadow 

 margins; some degree of tree invasion into 

 these meadows is occurring. However, the 

 existence of the plants in these ecotones 

 may be more closely tied to the fact that 

 this is where the putative parents most 

 often come into close sympatric contact. 



Tr isetum wo 1 f i i is most frequent in the 

 open, wet meadows? while T. canescens is 

 most frequent on slightly better-drained 

 soils on the forest margins. 



6. Dependence on dynamic aspects of biotic 

 associations and ecosystem features: 



Unknown; none apparent. 



7. Other endangered* threatened * rare, or 

 vulnerable species occurring in habitat of 

 this taxon: During field studies, a site was 

 found for Gent ianopsis simplex <A. Gray) 

 litis <MTNHP rank = G3G^/S1), in a seep area 

 near the Granite Creek South site. This 

 species has been added to the MTNHP state 

 list of plant species of special concern. No 

 other USFWS Category 2 or state sensitive 

 taxa were found in the areas studied. 



7. Population biology of taxon. 



A. General summary: The known populations consist 

 of eight clusters, which contain one to thirteen 

 stems; some of these clusters may actually be 

 single genetic individuals, arising from a common 

 root system. Sixty-six stems were found during 

 the field studies. All plants observed were 



