6 



field season, determinations in certain groups were verified by 

 specialists, including the Asteraceae (Kenton Chambers at Oregon State 

 University) . Extra specimens of grasses were collected with intent of 

 labelling and mounting them under contact paper for use at the Jordan 

 field office of BLM. 



Field guides most commonly used to key out plants included Dorn 

 (1984), Great Plains Flora Association (1986), Larson (1993), Hermann 

 (1970) and Hitchcock (1950). Technical nomenclature used in this 

 report generally follows Dorn (1984) and common names generally follow 

 the unpublished state flora compiled by the U.S. Forest Service 

 Regional Office (USDA Forest Service 1994) . 



The spring^ months of 1993 were extremely dry, followed by June rains 

 which elevated local stock dam water levels to peak highwater marks 

 (Heidel pers, obs . ) . The 1993 field season was exceptionally cool and 

 wet. This had the effects of delaying and prolonging flowering of 

 upland plants, and delaying or curtailing flov/ering of wetland and 

 aguatic plants. 



Almost all large areas of BLM lands in the study area were visited at 

 least once (Appendix 1) . The fieldwork does not construe definitive 

 sensitive species survey for any individual tract. 



