Place of publication:
Sitzungsber. Königl. Böhm. Ges. Wiss. Prag, Math.-Naturwiss. Cl. 1902(58):42. 1902
Comment:
Dumortier did not publish this at subspecies rank in Observ. Gramin. belg. 131. 1824 (as "P. pratense *P. nodosum") fide W. Greuter (pers. comm. via e-mail on 30 Jul 2014); nor did Arcangeli in Comp. fl. ital. 357. 1882, as he assigned a Latin letter to the entry, which on p. vi of his introduction is indicated to represent a variety