MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: PENSTEMON ANGUSTIFGLIUS 

 Common Name: NARROWLEAF PENSTEMON 



Global rank: G5 Forest Service status: 

 State rank: S2 Federal Status: 



Element occurrence code: PDSCR1L0C0 . 008 

 Element occurrence type: 



Survey site name: TWENTYTWO SPRING 



EO rank: 

 EO rank comments : 



County: CARTER 



USGS quadrangle: CAMP NEEDMORE 



Precision 



Survey date 



First observation 



Last observation 



M 



1994-06-1S 

 1994-06-1* 



Elevation: 3820 - 3900 

 Slope/aspect: 10-15% / SE-SW 

 Size (acres) : 1 



Location: 



RIM OF CLIFFS ABOVE TWENTYTWO SPRING. TAKE OLD 2 -TRACK FROM CURVE IN 

 FOREST SERVICE ROAD TO WHERE IT RUNS PARALLEL WITH RIM OF CLIFFS ABOVE 

 TWENTYTWO SPRING. 



Element occurrence data : 



2 SUB POPULATIONS, CA. 0.2 5 MILE APART, WITH CA. 18 PLANTS AT WEST END 

 OF SITE AND CA. 22 AT EASTERN END, AND SCATTERED INDIVIDUALS BETWEEN. 

 95% IN EARLY FRUIT, YOUNG PLANTS PRESENT AT EAST END. 



General site description: 



DRY, OPEN AND PARTIALLY SHADED HILLS AND SLOPES ON RIDGE EXTENDING 

 FROM MESA. SANDSTONE PARENT MATERIAL, GRAVELLY SAND AND GRAVELLY SANDY 

 LOAM SOIL. ASSOCIATED SPECIES: ANDROPOGON SCOPARIUS , ASTRAGALUS 

 FLEXUOSUS, CALOCHORTUS NUTTALLII, HELIANTHUS RIGIDUS, HETEROTHECA 

 VILLOSA, TRADESCANTIA OCCIDENTALIS . 



Land owner/manager: 



CUSTER NATIONAL FOREST, SIOUX RANGER DISTRICT 



Comments : 



OBSERVED BY K. DUEHOLM . 



Information source: 



SENSITIVE PLANT COORDINATOR, CUSTER NATIONAL 

 FOREST, 2 6 02 FIRST AVENUE NORTH, P.O. BOX 2 5 56, 

 BILLINGS, MT 59103. 



Specimens : 



