Compositae source details
(1954). Canad. Field-Naturalist 68(1)
313261
1954
Publication
Date
action
by
Carduus nutans var. leiophyllus (Petrovič) G.A.Mulligan & Frankton accepted as Carduus nutans subsp. leiophyllus (Petrovič) Stoj. & Stef. (original description)
