TABLE OF CONTENTS 



Acknowledgements i 



Introduction 1 



Nomenclature 1 



Status Classifications Used in This Manual 1 



Montana Status 1 



Natural Heritage Program Status 2 



U. S. Fish and Wildlife Service Status 4 



U. S. Forest Service Status 5 



Status in Other States or Provinces 5 



Information Categories 6 



Global Distribution 6 



Land Ownership 6 



Habitat, Phenology and Physiographic Distribution 7 



Literature Cited 7 



Endangered Plants 9 



Threatened Plants 11 



Sensitive Plants 16 



Possibly Extirpated Plants 60 



Watch List Plants 61 



Plants of Limited Distribution 68 



Plants of Undetermined Status 76 



Plants Considered for Status but Rejected 80 



Index 86 



