Keywords: Blackstonia perfoliata04.JPG en Blackstonia perfoliata flowers Castelltallat Catalonia ca Flors de Blackstonia perfoliata Castelltallat Bages own Victor M Vicente Selvas 2011-06-18 41º 47' N 1º 38' E 810 m asl Blackstonia perfoliata Gentianaceae in June Gentianaceae in Catalonia Gentianales in Catalonia in June Gentianales in Serra de Castelltallat |