SENSITIVE 



SCIENTIFIC NAME: CASTILLEJA GRACILLINA Rydb. 



COMMON NAME: Slender paintbrush 



FAMILY: Scrophulan'aceae (Figwort Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G3G4/S1 



USFWS STATUS: None 



USFS STATUS: Watch list 



STATUS IN OTHER STATES: Rare in B.C. 



GLOBAL DISTRIBUTION: Nw. WY and adjacent MT to c. ID, 



and possibly e. B.C. Regional endemic. 

 MONTANA COUNTIES: Gallatin, Madison; questionable 



record in Beaverhead. 

 LAND OWNERSHIP: Gallatin N.F.(?) 

 PHYSIOGRAPHIC DISTRIBUTION: Yellowstone area, and 



Jefferson and Madison river drainages. 

 HABITAT: Wet meadows and stream banks, 2040-2135 m 



(6,700-7,000 ft.) 

 PHENOLOGY: Flowering June to August 

 COMMENTS: This species is currently known from only 



two locations in Montana. 



SCIENTIFIC NAME: CENTAURIUM EXALTATUM (Griseb.) Wight 



COMMON NAME: Western centaury 



FAMILY: Gentianaceae (Gentian Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G5/SH 



USFWS STATUS: None 



USFS STATUS: None 



STATUS IN OTHER STATES: Rare in B.C. 



GLOBAL DISTRIBUTION: B.C. and e. WA to MT, south to 

 CA, CO, and NE. Sparse. 



MONTANA COUNTIES: Big Horn 



LAND OWNERSHIP: private(?) 



PHYSIOGRAPHIC DISTRIBUTION: 



HABITAT: Moist, open, alkal 



ponds on the plains, ca. 915 m (3,000 ft.) 



PHENOLOGY: Flowering in August 



COMMENTS: This species has been collected in Montana 

 only once, 100 years ago. This site has not been 

 relocated. Western centaury may be adventive in the 

 Great Plains (Great Plains Flora Association 1986). 



Northern Great Plains 

 ine soil, often around 



SCIENTIFIC NAME: CASTILLEJA LONGISPICA A. Nels. 



COMMON NAME: White paintbrush 



FAMILY: Scrophulariaceae (Figwort Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G4/S1 



USFWS STATUS: None 



USFS STATUS: Watch list 



GLOBAL DISTRIBUTION: Ne. CA, across e. OR and c. ID, 



to w. WY and MT; Clearwater River drainage in n. ID. 



Peripheral . 

 MONTANA COUNTIES: Beaverhead, Carbon, Madison, 



Raval I i 

 LAND OWNERSHIP: Bitterroot N.F.; BLM, Miles City 



District; private(?) 

 PHYSIOGRAPHIC DISTRIBUTION: Pryor Mtns.-Big Horn 



Canyon area. Sapphire Mtns. 

 HABITAT: Plains, hills, and slopes, generally 



associated with sagebrush, often in meadowy areas, 



ca. 1220-2440 m (4,000-8,000 ft.) 

 PHENOLOGY: Flowering in June and July 

 COMMENTS: Some of the Montana collections of this 



species are old (1899), and the sites have not been 



verified in recent years. 



SCIENTIFIC NAME: CEMTUNtULUS MINIMUS L. 



COMMON NAME: Chaff weed 



FAMILY: Primulaceae (Primrose Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G5/SH 



USFWS STATUS: None 



USFS STATUS: None 



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



rare in Sask. 

 GLOBAL DISTRIBUTION: Irregularly cosmopolitan. Nova 



Scotia to OH, MN, MT, ND, s. to OK. Sparse. 

 MONTANA COUNTIES: Cascade 

 LAND OWNERSHIP: Private(?) 

 PHYSIOGRAPHIC DISTRIBUTION: Great Plains 

 HABITAT: Shores, seepage areas, and other moist 



areas, 1020 m (3,340 ft.) 

 PHENOLOGY: Flowering and fruiting June- September 

 COMMENTS: This species has not been collected in 



Montana since 1891. 



SCIENTIFIC NAME: CELASTRUS StyWDENS L. 



COMMON NAME: American bittersweet 



FAMILY: Celastraceae (Staff Tree Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G5/S1 



USFWS STATUS: None 



USFS STATUS: None 



STATUS IN OTHER STATES: Rare in Sask. 



GLOBAL DISTRIBUTION: Quebec to Manitoba, and MT, s. 



to NC, TN, and TX. Peripheral. 

 MONTANA COUNTIES: Carter, Dawson 

 LAND OWNERSHIP: Private(?) 

 PHYSIOGRAPHIC DISTRIBUTION: Great Plains 

 HABITAT: Woodlands, rocky hillsides, and thickets, 



610-760 m (2,000-2,500 ft.) 

 PHENOLOGY: Flowering and fruiting Hay- July 



SCIENTIFIC NAME: CER(X)CARPUS NONTANUS Raf. 



COMMON NAME: Birchleaf mountain-mahogany 



FAMILY: Rosaceae (Rose Family) 



MONTANA STATUS: Sensitive 



GLOBAL and STATE RANKS (TNC): G5/S1 



USFWS STATUS: None 



USFS STATUS: None 



GLOBAL DISTRIBUTION: Southwest OR to Baja Cal., east 



to MT, WY, CO, NM, and Mex. Peripheral. 

 MONTANA COUNTIES: Treasure 

 LAND OWNERSHIP: private(?) 



PHYSIOGRAPHIC DISTRIBUTION: Northern Great Plains 

 HABITAT: Open slopes and breaks on the plains, ca. 



915 m (3,000 ft) 

 PHENOLOGY: Unknown 

 COMMENTS: This species is known from only one 



location in Montana. 



