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		Western Wild Buttercup - Ranunculus adoneus  
		
			
				Other Names:  
				
				Ranunculus eschscholtzii var. adoneus 
			
		
		
		
		
            
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            State Rank Reason  (see State Rank  above) 
            Reported for Montana by Whittemore (FNA)
			
	 
	
	 
		General Description
		Plants perennial. Stems 5-32 cm tall, ascending  to erect, glabrous. Basal leaf blades simple,1-5 cm long, several times divided into usually linear segments 0.7-3 mm wide; cauline leaves similar but with progressively shorter petioles.  Sepals 5, 3.5-10 mm long, pilose or glabrous, deciduous, spreading. Petals 5-12, 5-15 mm long, yellow. Achenes 2.5-4 mm long, glabrous, arranged 40-70 in an ovoid cluster; beaks 1.4-1.9 mm long, straight or recurved; receptacle glabrous (adapted from: Welsh et al., 1993, A Utah Flora, 2nd ed.).
		
	
    		Range Comments
			ID, MT, south to NV, UT, WY and CO (Kartesz in prep. 2012). 
			
		
		Observations in Montana Natural Heritage Program Database
		Number of Observations:  2
		
		
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				Relative Density 
				 
			 
		
			
				Recency 
				 
			 
		
		 
		
			
				 
			
				 
			
			(Observations spanning multiple months or years are excluded from time charts) 
		 
		
			
		
		
	
		Habitat
		Most areas near melting snow in meadows, talus slopes, and confierous communities (adapted from: Welsh et al., 1993, A Utah Flora, 2nd ed.).
		
		
	
		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  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. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p. 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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