APPENDIX 7 



PRELIMINARY FLORA OF THE ELKHORN MOUNTAINS, 

 HELENA NATIONAL FOREST 



Nomenclature follows Hitchcock and Cronquist (1973) . 

 Nomenclature for Salix follows Dorn (1984). Taxa that are bold- 

 faced were collected. Species followed by an asterisk (*) are 

 introduced (non-native) . 



Aceraceae 

 Acer glabrum 



Amaranthaceae 

 Amaranthus retroflexus 



Anacardiaceae 

 Rhus trilobata 

 Toxicodendron rydbergii 



Apiaceae 

 Cymopterus bipinnatus 

 Heracleum lanatum 

 Lomatium triternatum 

 Lomatium spp. 

 Musineon divaricatum 

 Osmorhiza claytoni 

 Osmorhiza depauperata 

 Osmorhiza occidentalis 

 Osmorhiza purpurea 

 Perideridia gairdneri 



Apocynaceae 

 Apocynum androsaemif olium 



Asteraceae 

 Achillea millefolium 

 Agoseris aurantiaca 

 Agoseris glauca 

 Anaphalis margaritacea 

 Antennaria anaphaloides 

 Antennaria corymbosa 

 Antennaria microphylla 

 Antennaria racemosa 

 Antennaria rosea 

 Arnica cordifolia 

 Arnica latifolia 

 Arnica longifolia 

 Artemisia dracunculus 

 Artemisia frigida 

 Artemisia ludoviciana 



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