Scientific Name: PHALARIS ARUNDINACEA CT 

 Common Name: REED CANARY GRASS COMMUNITY 



Global rank: G4 Forest Service status: 

 State rank: S4 Federal Status: 



Element occurrence code: C5B1CGABA0 . 001 



Survey site name: HAHNKAMP ISLAND SOUTH #2 



EO rank: AB 

 EO rank comments: BASICALLY A PRISTINE SITE. 



County : BEAVERHEAD 



USGS quadrangle: EARLS GULCH 



Township: 003S Range: 009W Section: 02 Precision: S 



Township-range comments: SE4NW4 



Survey date: 1991-08-21 Elevation: 5145 

 First observation: 1991 Slope/aspect: 1% / NORTH 



Last observation: 1991-08-21 Size (acres) : 1 



Location: 



FROM MELROSE, PROCEED SOUTH 0.7 MILES ON THE FRONTAGE ROAD AND PARK. 

 FORD THE BIG HOLE RIVER TO THE ISLAND. THE PLOT IS NEAR THE SOUTH END 

 OF THE ISLAND, CA. 0.8 MILE TO THE SOUTH. 



Element occurrence data: 



WITHIN PLOT, 7 SPECIES OBSERVED. DOMINANTS INCLUDE: PHALARIS 

 ARUNDINACEA (98% CANOPY COVER), POA PALUSTRIS (10%), CARDAMINE 

 OLIGOSPERMA (1%)/ CIRSIUM ARVENSE (3%), AND MENTHA ARVENSIS (3%). 

 COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



ALLUVIAL FLOOD PLAIN; PLOT POSITION IS STREAM BAR IN WIDE VALLEY 

 BOTTOM. GRAVELLY ALLUVIUM PARENT MATERIAL AND TYPIC FLUVAQUENT SOIL 

 SUBGROUP. GROUND COVER: BARE SOIL (20%) , TOTAL COARSE FRAGMENTS (0%) . 



Land owner/manager: 



ELM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments: 



MTNHP PLOT #91RD051. SURVEY CONDUCTED BY R. L. DEVELICE. SPECIES 

 RICHNESS IS LIKELY LOW DUE TO INTENSE COMPETITION WITH PHALARIS 

 ARUNDINACEA. NOTE: LAND OWNERSHIP IS BLM, BUT MAY APPEAR AS 

 PRIVATELY-OWNED LAND ON MAPS. 



Information source: 



DEVELICE, ROBERT. [COMMUNITY ECOLOGIST] . MONTANA NATURAL HERITAGE 

 PROGRAM, 1515 EAST 6TH AVE., HELENA, MT 59620. 



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