Hi @PabloCL,
This seems like a formatting issue... If you'd like to obtain a traditional taxonomy style output from LEfSe (as intended, where different ranks are shown), you might follow the easy approach outlined here. Then feed the output into LEfSe...
If you are trying to obtain LEfSe cladogram output, there is no phylogeny required. That cladogram is simply a hierarchical taxonomic cladogram, not a phylogenetic cladogram.