As classified in WFO snapshot
December 2022
Warning: older classification
species
Melocactus tenuissimus
Valck.Sur.
This species name was first published in in Verh. Kon. Akad. Wetensch., Afd. Natuurk., Sect. 2 16(3): 6. 1910.
This species name has been reclassified since this snapshot. Its current preferred usage is a synonym .