Crvptantha scoparia A. Nelson 



Desert Cryptantha 



NATURAL HERITAGE PROGRAM STATUS: G5/S1 



MONTANA STATUS: None 



GLOBAL DISTRIBUTION: Eastern Washington to south-central Montana, south to 

 Nevada, Utah and Wyoming 



MONTANA DISTRIBUTION: Southern Carbon County 



PRYOR MOUNTAINS DESERT DISTRIBUTION: We discovered only one 

 population of Crvptantha scoparia in the study area. This was the first collection of this 

 species from Montana. It occurs in sandy soil at ca. 1370 m (4500 ft) on the south side 

 the Pryor Mountains. The dominant species at this site were Artemisia tridentata and 

 Agropvron spicatum . 



MANAGEMENT RECOMMENDATIONS: Crvptantha scoparia is an annual; thus, 

 population sizes may very greatly among years and may respond positively to moderate 

 levels of disturbance. This species is rare in the study area and in Montana, and should 

 be given special status on BLM's Miles City District. 



Delphinium andcrsonii Gray 



Anderson's Larkspur 



NATURAL HERITAGE PROGRAM STATUS: G5/S1 



MONTANA STATUS: Sensitive 



GLOBAL DISTRIBUTION: Eastern Oregon to south-central Montana, south to 

 California, Nevada and Utah 



MONTANA DISTRIBUTION: Beaverhead, Carbon and Jefferson counties 



PRYOR MOUNTAINS DESERT DISTRIBUTION: We located only two small 

 populations of D. andersonii on the west side of the Pryor Mountains in the Bridger 

 Creek and Jack Creek drainages. It is found in sparsely vegetated, sandy, probably 

 calcareous, soils at 1250-1310 m (4100-4300 ft). It is associated with communities 

 dominated by Pinus flexilis , Juniperus spp. and Agropyron spicatum . 



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