| Source: | Greuter, W. (2006+): Compositae (pro parte majore). – In: Greuter, W. & Raab-Straube, E. von (ed.): Compositae. Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported license (CC-By-SA-3.0 Unported).
 
 
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                            | Name: | Hieracium triangulare (Almq.) Norrl. | 
                          
						  
                            | Nomencl. ref.: | in Acta Soc. Fauna Fl. Fenn. 3(4): 95. 1888 | 
						  
                          
                            | Rank: | Species | 
                          
                            | Status: | ACCEPTED | 
	
		| Taxonomy (this taxon is included in): | Regnum - Plantae Divisio - Tracheophyta
 Subdivisio - Spermatophytina
 Class - Magnoliopsida
 Superordo - Asteranae
 Ordo - Asterales
 Familia - Compositae Giseke
 Tribus - Cichorieae Lam. & DC.
 Genus - Hieracium L.
 Aggregate - Hieracium triangulare aggr.
 
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		| Basionym: | Hieracium sylvaticum subsp. triangulare Almq. | 
                          
                          
                            | Homotypic synonyms: | Hieracium sylvaticum subsp. triangulare Almq. | 
                          
 
						  
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		| Common names: | Delta-hunditubakas (Estonian)[Credits] | 
	
		| Maps: | distribution | 
	
		| Occurrence: | ● Es Fe No Rf(NW) Su |