As classified in WFO snapshot
December 2023
Warning: older classification
species
Melocactus pycnacanthus
This species name was first published in in Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 18 (Suppl. 1): 200 b. 1841.
This species name has been reclassified since this snapshot. Its current preferred usage is a synonym .