TY - JOUR T1 - Restricted taxonomic value of leaf sections in Canadian narrow-leaved Festuca (Poaceae) JF - Can. J. Bot Y1 - 1985 A1 - Aiken, S. G. A1 - Darbyshire, SJ A1 - Lefkovitch, L.P. SP - 995 EP - 1007 VL - 63 ER -