Rocky Mountain Herbarium (RM), University of Wyoming
https://rmh.uwyo.edu/data/search.php

Database Search Results

5 matching records found (of 5).
Search query: Genus begins with Pleiacanthus, Species begins with spinosus, (search polygon not defined)
Sorted by: Scientific Name

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1.  Pleiacanthus spinosus (Nutt.) Rydb. 				Asteraceae

U.S.A., Arizona, Coconino County: Kaibab National Forest: Kaibab Plateau: along Ariz Hwy 67, ca 3.5 air mi SSE of Jacob Lake; ca 27 air mi SE of Fredonia.  Elev. 8320-8360 ft.
T38N R2E S28 NW1/4.  36.6654 N, 112.1943 W; GPS Reading.  
Open ponderosa pine forest with aspen groves. Phenology: flowering & fruiting. 

B. E. Nelson, 66811.  9/16/2005. 		RM 
     with James F. Fowler
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2.  Pleiacanthus spinosus (Nutt.) Rydb. 				Asteraceae

U.S.A., Montana, Madison County: Madison Valley: along west and east sides of U.S. Highway 287, ca 5 mi S of Cameron.  Elev. 5440 ft.
T8S R1W S24.  45.124 N, 111.6691 W.  
Disturbed grassland with Melilotus officinalis, Agropyron spicatum, Stipa comata, and Erigeron pumilis. Phenology: vegetative only. 

Erwin F. Evert, 27258.  6/18/1994. 		RM 781537
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3.  Pleiacanthus spinosus (Nutt.) Rydb. 				Asteraceae

U.S.A., Montana, Madison County: Gallatin National Forest: Moose Creek: Canyon Cover.  Elev. 6200 ft.
Slope 20% south; shallow, coarse gravel. Rare. Phenology: vegetative only. 

James C. Whitham, 1440.  7/14/1933. 		USFS 480662
     with W. E. Fry
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4.  Pleiacanthus spinosus (Nutt.) Rydb. 				Asteraceae

U.S.A., Montana: Ennis and Lower Madison Valley.
Phenology: flowering. 

J. W. Blankinship, s.n..  8/20/1900. 		RM 122331
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5.  Pleiacanthus spinosus (Nutt.) Rydb. 				Asteraceae

U.S.A, Idaho, Butte County: Arco Hills: base of hill "5986", near junction of U.S. Hwy 20/26 and Ida Hwy 22/88, 7.1 air mi E of Arco.  Elev. 5390 ft.
T3N R28E S6.  
<25 plants estimated in xeric coarse textured soil within shrub-steppe vegetation, 9 degree slope, SSE aspect, tholeiite geology. Phenology: fruiting. 

Joshua J. Irwin, 8143.  8/20/2011. 		RM 
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