SCIENTIFIC NAME: PHACELIA THERHALIS Greene 



COMMON NAME: Hot spring phacelia 



FAMILY: Hydrophvl laceae (Waterleaf Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNG): G3G4/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: Southeast OR to n. CA, east to 



s. ID and MT . Disjunct. 

 MONTANA COUNTIES: Garfield, Phillips 

 LAND OWNERSHIP: C. M. Russel N.W.R., private 

 PHYSIOGRAPHIC DISTRIBUTION: Northern Great Plains 

 HABITAT: Sparsely vegetated soil in grasslands and 



open forests on the plains, 610-700 m 



(2,000-2,300 ft.) 

 PHENOLOGY: Flowering in early June 

 COMMENTS: This species occupies disturbed habitats 



and could be advent ive in Montana. 



SCIENTIFIC NAME: PLAGIOBOTHRYS LEPTOCLADUS (Greene) 



Johnst . 

 COMMON NAME: Slender-branched popcorn- flower, hairy 



popcorn- flower 

 FAMILY: Boraginaceae (Borage Family) 

 MONTANA STATUS: Sensitive 

 GLOBAL and STATE RANKS (TNC): G4/S1 

 USFWS STATUS: None 

 USFS STATUS: None 

 GLOBAL DISTRIBUTION: OR to MT, south to UT and Baja 



Cal. Disjunct. 

 MONTANA COUNTIES: Phillips, reported for Glacier 



(Standley 1921) 

 LAND OWNERSHIP: BLM, Lewistown District; Glacier N.P. 

 PHYSIOGRAPHIC DISTRIBUTION: Missouri River drainage 

 HABITAT: Drying mud on the shores of ponds on the 



plains, 850 m (2,800 ft.) 

 PHENOLOGY: Mature fruit in August 

 COMMENTS: There is only one verified location for 



this species in Montana. Mature fruit is needed for 



positive identification. 



SCIENTIFIC NAME: POLYGONUH DtXJGLASII Greene ssp. 



AUSTINIAE (Greene) Hickman 

 COMMON NAME: Austin's knotweed 

 FAMILY: Polygonaceae (Buckwheat Family) 

 PERTINENT SYNONYMS: P^ austiniae Greene 

 MONTANA STATUS: Sensitive 

 GLOBAL and STATE RANKS (TNC): G4T4/S1 

 USFWS STATUS: None 

 USFS STATUS: Watch List 

 STATUS IN OTHER STATES: Sensitive in WA, rare in 



Al ta. , rare in B.C. 

 GLOBAL DISTRIBUTION: B.C. to CA, east to Alta., MT 



and WY. The species as a whole occurs throughout 



most of the U.S. and southern Canada. Sparse. 

 MONTANA COUNTIES: Broadwater, Lewis & Clark, Pondera 

 LAND OWNERSHIP: Helena N.F., Lewis & Clark N.F. 

 PHYSIOGRAPHIC DISTRIBUTION: Front Range, Big Belt 



Mtns. 

 HABITAT: Open, gravelly, often shale-derived soil of 



eroding slopes and banks in the montane zone ca. 



1770-2010 m (5,800-6,600 ft.) 

 PHENOLOGY: Flowering in July, mature fruit in August 

 COMMENTS: This small plant is easily overlooked and 



may be more common than records indicate. Mature 



fruit is needed for positive identification. 



SCIENTIFIC NAME: POLYSTICHUM KRUCKEBERGI I Wagner 



COMMON NAME: Kruckeberg's sword- fern 



FAMILY: Polypodiaceae (Fern Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G3G4/S1 



USFWS STATUS: 3C 



USFS STATUS: Watch list 



STATUS IN OTHER STATES: Sensitive in ID, review list 



in OR, rare in B.C. 

 GLOBAL DISTRIBUTION: Irregularly from s. B.C. and nw. 



WA (Olympic Mtns.) to s. CA, e. to c. ID, w. MT, and 



n. UT. Peripheral. 

 MONTANA COUNTIES: Deer Lodge, Lake; possibly 



Missoula. 

 LAND OWNERSHIP: Deer lodge N.F., Flathead Indian Res. 

 PHYSIOGRAPHIC DISTRIBUTION: Anaconda-Pint lar Range, 



Mission Range 

 HABITAT: Cliff crevices and talus slopes at middle 



and upper elevations in the mountains, 2195-2830 m 



(7,200-9,275 ft.) 

 PHENOLOGY: Mature fronds in August 

 COMMENTS: This fern species is widely scattered in 



the western U.S. and southwest Canada. Lei linger 



(1985) states that this species is very rare. 



SCIENTIFIC NAME: POL Y5^T I CHUM SCOPULINUH (D.C. Eat) 



Maxon 

 COMMON NAME: Mountain holly fern, crag holly fern, 



rock sword- fern 

 FAMILY: Polypodiaceae (Fern Family) 

 MONTANA STATUS: Sensitive 

 GLOBAL and STATE RANKS (TNC): G5/S1 

 USFWS STATUS: None 

 USFS STATUS: None 



STATUS IN OTHER STATES: Rare in B.C. 

 GLOBAL DISTRIBUTION: B.C. to CA, east to w. MT and 



UT; Que. Peripheral. 

 MONTANA COUNTIES: Ravalli, Sanders 

 LAND OWNERSHIP: Bitterroot N.F., Kootenai N.F. 

 PHYSIOGRAPHIC DISTRIBUTION: Bitterroot Mtns., Cabinet 



Gorge 

 HABITAT: Moist rock crevices in subalpine zone, 2195 



m (7,200 ft), moist rocks along rivers in the 



valleys, 665 m (2180 ft) 

 PHENOLOGY: Fertile fronds in late June and July 

 COMMENTS: The low-elevation site is in man-made 



habitat. 



SCIENTIFIC NAME: POTANOGETON CeTUSIFOLIUS Hert. & 

 Koch 



COMMON NAME: Blunt- leaved pondweed 



FAMILY: Potamogetonaceae (Pondweed Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G5/S2 



USFWS STATUS: None 



USFS STATUS: Sensitive 



STATUS IN OTHER STATES: Rare in Sask., rare in B.C., 



rare in Alta., sensitive in WA, rare in WY 

 GLOBAL DISTRIBUTION: B.C. to Newf. south to NJ, KB, 



MN, WA, and WY. Peripheral. 

 MONTANA COUNTIES: Flathead, Glacier, Lake, Missoula 

 LAND OWNERSHIP: Flathead N.F., Glacier National Park, 



Blackfeet Indian Res., private 

 PHYSIOGRAPHIC DISTRIBUTION: Flathead River drainage, 



Lewis Range, Two Medicine River drainage 

 HABITAT: Shallow water of lakes, ponds and sloughs in 



the valley, foothill, and montane zones, 9K-1580 m 



(3,000-5,200 ft.) 

 PHENOLOGY: Mature fruit in late July and August 

 COMMENTS: This species is difficult to distinguish 



from other narrow- leaved pondweeds. It may be more 

 Montana than records indicate. 



