SENSITIVE 



SCIENTIFIC NAME: STEPHANOMERIA SPINOSA (Nutt.) Tomb 



COMMON NAME: Spiny skeletonweed 



FAMILY: Asteraceae (Sunflower Family) 



Pertinent synonyms: Lygodesmia spinosa Nutt. 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G4/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: B.C. to MT , south to CA and AZ. 



Peripheral . 

 MONTANA COUNTIES: Madison 

 LAND OWNERSHIP: Private 



PHYSIOGRAPHIC DISTRIBUTION: Madison River drainage 

 HABITAT: Dry grasslands in the valleys and montane 



zone, 1465-1890 m (4,800-6,200 ft.) 

 PHENOLOGY: Flowering in July and August 



SCIENTIFIC NAME: SULLIVANTIA HAPEMANNII (Coult. & 



Fish.) Coult. 

 COMMON NAME: Wyoming sullivantia 

 FAMILY: Saxi f ragaceae (Saxifrage Family) 

 MONTANA STATUS: Sensitive 

 GLOBAL and STATE RANKS (TNC): G3/S1 

 USFWS STATUS: 3C 

 USFS STATUS: None 

 GLOBAL DISTRIBUTION: Northeast WY and adjacent MT. 



Regional endemic. 

 MONTANA COUNTIES: Big Horn, Carbon 

 LAND OWNERSHIP: Big Horn Canyon N.R.A., Crow Indian 



Res. 

 PHYSIOGRAPHIC DISTRIBUTION: Pryor Mtns.- Big Horn 



Canyon area 

 HABITAT: Wet, open, calcareous soil, usually on 



cliffs or steep banks in the valley zone, 



1130-1430 m (3,700-4,500 ft.) 

 PHENOLOGY: Flowering in June and July 

 COMMENTS: Some populations may be threatened by 



livestock grazing. 



SCIENTIFIC NAME: STREPTANTHELLA LONGIROSTRIS (Wats.) 



Rydb. 

 COMMON NAME: Beaked streptanthel la 

 FAMILY: Brassicaceae (Mustard Family) 

 MONTANA STATUS: Sensitive 

 GLOBAL and STATE RANKS (TNC): G5/S1 

 USFWS STATUS: None 

 USFS STATUS: None 



GLOBAL DISTRIBUTION: WA to Baja Cal., east to s. MT 



and NM. Peripheral . 

 MONTANA COUNTIES: Carbon 

 LAND OWNERSHIP: BLM, Miles City District 

 PHYSIOGRAPHIC DISTRIBUTION: Pryor Mtns. -Big Horn 



Canyon area 

 HABITAT: Open, often sandy soil in sagebrush 



grassland, desert shrubland, and juniper woodland in 



the valley and foothill zones, 1370-1650 m 



(4,500-5,400 ft.) 

 PHENOLOGY: Flowering in May and early June, mature 



fruit in June 

 COMMENTS: There are two known Montana populations, 



but the species is weedy in the main part of its 



range. 



SCIENTIFIC NAME: SYNTHYRIS MISSURICA (Raf.) Pennell 



COMMON NAME: Mountain kittentails 



FAMILY: Scrophulariaceae (Figwort Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G4/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: Eastern WA to w. MT, south to 



ID, OR and n. CA. Peripheral. 

 MONTANA COUNTIES: Ravalli 

 LAND OWNERSHIP: Bitterroot N.F. 

 PHYSIOGRAPHIC DISTRIBUTION: Bitterroot Mtns. 

 HABITAT: Open forests and rocky ridges in the montane 



and subalpine zones, 1950-2440 m (6,400-8,000 ft) 

 PHENOLOGY: Flowering late May to early July 



SCIENTIFIC NAME: SUCKLEYA SUCKLEYANA (Torr.) Rydb. 



COMMON NAME: Poison suckleya 



FAMILY: Chenopodiaceae (Goosefoot Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G4/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: Alta. and Sask., south to TX a 



NH. Sparse. 

 MONTANA COUNTIES: Roosevelt, Valley 

 LAND OWNERSHIP: private 



PHYSIOGRAPHIC DISTRIBUTION: Northern Great Plains 

 HABITAT: Drying mud along ponds and streams and in 



disturbed, often alkaline soil on the plains, ca. 



640 m (2,100 ft) 

 PHENOLOGY: Flowering in July and August 

 COMMENTS: This species may be more common than 



records indicate. 



SCIENTIFIC NAME: TARAXACUM ERIOPHORUM Rydb. 



COMMON NAME: Rocky Mountain dandelion 



FAMILY: Asteraceae (Sunflower Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G4/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: AK south to WA and WY. Sparse. 



MONTANA COUNTIES: Beaverhead, Deer Lodge, Madison 



LAND OWNERSHIP: Beaverhead N . F . ; BLM, Butte District 



PHYSIOGRAPHIC DISTRIBUTION: Beaverhead Mtns., 



Anaconda Mtns.(?) 

 HABITAT: Grasslands and meadows in the montane to 



alpine zones, 1830-3110 m (6,000-10,200 ft) 

 PHENOLOGY: Flowering in June and July 

 COMMENTS: Collections from Deer Lodge and Madison 



COS. are at least 80 years old. 



