COMMENTS: Delphinium andersonii is very similar in appearance to the more 

 common D^ bicolor ; however, the former has glabrous herbage with upper petals that are 

 white with blue tips, while the latter is puberulent with blue veins on the upper petals. 

 The habitat of D. andersonii is often more xeric and barren. 



MANAGEMENT RECOMMENDATIONS: Delphinium andersonii appears to be rare 

 in Montana and the Pryor Mountain Desert. Populations are small with scattered 

 individuals. Members of this genus are poisonous to livestock and usually do not decline 

 under livestock grazing. Since the plant is so similar to the more common D. bicolor . we 

 may have failed to note all populations encountered. Further survey work is needed to 

 determine the plant's distribution with certainty. Until such surveys have been 

 completed, D. andersonii should be given special status on BLM's Miles City District. 



Delphinium geycri Greene 



Geyer's Larkspur 



NATURAL HERITAGE PROGRAM STATUS: G5/S1 



MONTANA STATUS: Sensitive 



GLOBAL DISTRIBUTION: Southern Montana south to Nebraska, Colorado and Utah 



MONTANA DISTRIBUTION: Beaverhead and Carbon counties 



PRYOR MOUNTAINS DESERT DISTRIBUTION: We were unable to locate any 

 populations of Delphinium geyeri in the study area. There is one collection from along 

 the Bighorn River just south of the confluence with Dry Head Creek. Only 12 plants 

 were observed in 1967 when the collection was made. 



MANAGEMENT RECOMMENDATIONS: Delphinium geveri appears to be rare in 

 the study area and Montana. It should be given special status on BLM's Miles City 

 District. 



Erigeron allocotus Hiakc 



Bighorn Fleabane 

 NATURAL HERITAGE PROGRAM STATUS: G3/S3 

 MONTANA STATUS: Watch List 



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