21 

 S. HABITAT 



1. ASSOCIATED VEGETATION: Eriogonum ovalifolium var. 

 nevadense is found within the sand dune regions. It is 

 found in sandy, well drained soils with the 

 following grasses and forbs: 



Artemisia tripartita (threetip sagebrush) 



buckwheat) 

 Astragalus ceramicus var. apus (painted milk-vetch) 

 Elymus flavescens (sand wildrye) 



Eriogonum ovalifolium var. nevaciense (oval-leaved 

 Festuca idahoensis (Idaho fescue) 

 Oenothera pallida var. idahoensis (pale evening 

 Phacelia hastata (whiteleaf phacelia) 



primrose) 

 Stipa comata (needle and thread grass) 

 Tetradvmia canescens (gray horsebrush) 



2 . TOPOGRAPHY AND SOILS : Eriogonum ovalifolium var . 

 nevadense is located in sandy, well-drained soils. It 

 is ubiquitous throughout the sand dune region. It is 

 found on gentle slopes (5%) to moderately steep (30- 

 35%) and at all aspects. 



F. POPULATION DEMOGRAPHY AND BIOLOGY 



1. POPULATION SIZE AND CONDITION: Eriogonum ovalifolium 

 var. nevadense p opulation seems to be flourishing. It 

 was found extensively throughout the core of the sand 

 dune area to the periphery. 



G. REPRODUCTIVE BIOLOGY: Eriogonum ovalifolium var. 

 nevadense reproduces by seeds resulting in a long-lived 

 perennial. 



H. LAND OWNERSHIP: Eriogonum ovalifolium var. nevadense is 

 located on BLM, National Wildlife Refuge and private 

 lands. 



II. ASSESSMENT AND MANAGEMENT RECOMMENDATIONS 



A. THREATS TO KNOWN POPULATIONS: Populations of Eriogonum 

 ovalifolium var. nevadense occur in areas where there is 

 little to moderate livestock use. However, this does not 

 seem to adversely affect the populations. During the 

 summer of 1993 the populations seem to be thriving. 



B. FURTHER ASSESSMENT AND MANAGEMENT NEEDS: No assessments 

 or altered management practices seem to be called for at 

 this time. 



