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		Mountain Buttercup - Ranunculus populago
		
		
		
		
	 
	
			
            State Rank Reason (see State Rank above)
            Numerous collections at MONT and MONTU, nearly all from the Bitterroots.
			
	 
	
	 
		General Description
		Stems erect, hollow, 8-30 cm with mostly glabrous foliage. Basal leaf blades 1-3 cm long, cordate with scalloped margins. Flowers with petals 4-8 mm long, twice as long as the glabrous sepals. Achenes flattened, glabrous or sparsely hairy, ca. 1.5 mm long with a straight beak <0.5 mm long, heads hemispheric, 2-3 mm high. (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
 
		
	
	
	Species Range
	
		
			Montana Range
		Range Descriptions
			
			
			
					
						
						Native
					 
				
				
					
			 
			
		 
		
	 
	
    		Range Comments
			WA to MT south to CA, OR, ID. (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
			
		
		Observations in Montana Natural Heritage Program Database
		Number of Observations: 6
		
		
(Click on the following maps and charts to see full sized version)
		Map Help and Descriptions
		
		
			
				Relative Density
				
			 
		
			
				Recency
				
			 
		
		 
		
			
				
			
				
			
					
				
			(Observations spanning multiple months or years are excluded from time charts)
		 
		
			
		
		
	
		Habitat
		
		
		
	
		Ecology
		POLLINATORS The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: 
Bombus auricomus, 
Bombus bifarius, 
Bombus nevadensis, and 
Bombus bimaculatus (Macior 1968, Thorp et al. 1983).
 
		
	
		Stewardship Responsibility
		
		
	
	References
	
		
			- Literature Cited AboveLegend:  
 View Online Publication
Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
Macior, L.M. 1968. Bombus (Hymenoptera, Apidae) queen foraging in relation to vernal pollination in Wisconsin. Ecology 49:20-25.
Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
 
			- Additional ReferencesLegend:  
 View Online Publication
Do you know of a citation we're missing?
Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
 
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