Del Guacchio, E. and Iamonico, D. 2015.

Typifications of the Linnaean names Carduus eriophorus, Carduus eriophorus var. spurius, and Cnicus ferox (Asteraceae)

. Phytotaxa. 238, 2 (Dec. 2015), 196–200. DOI:https://doi.org/10.11646/phytotaxa.238.2.8.