Montana Natural Heritage Program 

 Element Occurrence Record 



Scientific Name: SPIRANTHES DILUVIALIS 

 Common Name : UTE LADIES ' TRESSES 



Global rank: G2 Forest Service status: 

 State rank: SI Federal Status: LT 



Element occurrence code: PMORC2B100 . 005 



Element occurrence type: 



Survey site name: JEFFERSON RIVER VALLEY 



EO rank: AB 

 EO rank comments: SMALL POPULATION AREA, RELATIVELY HIGH DENSITY; 



GRAZING, SOME NON-NATIVE SPECIES. 



County: JEFFERSON 



USGS quadrangle: VENDOME 



Township: Range: Section: TRS comments: 

 OOIN 004W 00 



Precision: S 



Survey date: 1996-08-15 Elevation: 4395 - 4400 



First observation: 1996-08-15 Slope/aspect: 0% / LEVEL 



Last observation: 1997-08-11 Size (acres) : 20 



Location: 



CONTACT THE MONTANA NATURAL HERITAGE PROGRAM. 



Element occurrence data: 



OVER 500 PLANTS IN FOUR SUBPOPULATIONS AND IN RELATIVELY HIGH DENSITY. 

 MOST PLANTS NEAR PEAK FLOWERING ON 15 AUGUST 1996, BUT A FEW ENTIRELY 

 IN BUD AND A FEW NEAR SENESENCE . THE THREE WESTERN SUBPOPULATIONS HAD 

 OVER 100 PLANTS IN 1997 (ACTUAL COUNT) , WITH 175 IN THE BIGGEST MEADOW 

 AREA. 



General site description: 



MARL PEATLAND COMPLEX ASSOCIATED WITH SEEP-FED MEADOWS AT THE EDGE OF 

 THE JEFFERSON RIVER VALLEY. THE PLANT COMMUNITY WEST OF THE OXBOW IS 

 LOCALLY DOMINATED BY DIMINUTIVE SPECIES INCLUDING ELEOCHARIS 

 PAUCIFLORA, MUHLENBERGIA RICHARDSONIS , CAREX SIMULATA AND GLAUX 

 MARITIMA. THE REST OF THE HABITAT HAS CO-DOMINANCE THAT INCLUDES 

 AGROSTIS STOLONIFERA AND JUNCUS BALTICUS . OTHER ASSOCIATED SPECIES 

 INCLUDE TRIFOLIUM FRAGERIFERUM AND HABENARIA HYPERBOREA. SOILS ARE 

 MARLY PEAT WHICH ARE FIBRIC AND BROWN IN UPPER INCH BUT BLACK AND MORE 

 HUMIC BELOW. 



Land owner /manager : 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments : 



LANDOWNER NOTED THAT THE DITCH TO THE WEST OF THIS OCCURRENCE FORMERLY 

 INUNDATED MUCH OF THIS HABITAT WHEN THE DITCH WAS IN USE. 



Information source: HEIDEL, BONNIE. [BOTANIST] MONTANA NATURAL 



HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, P.O. BOX 

 201800, HELENA, MT 59620-1800. WORK: 406/444-3009. 



Specimens : 



