Template:Penneckamp et al., 2022
- Penneckamp, D., Chaura, R., Rojas, G. & Stuessy, T. 2020. Taxonomic notes on Plectocephalus (Centaurea sl, Centaureinae, Asteraceae) from Chile, including new combinations and synonyms. Phytotaxa 437(4): 227-236. DOI: 10.11646/phytotaxa.437.4.4 PDF