Synonyms: Dichromena sellowiana; Dichromena velutina (homotypic); Pachymitra conferta (homotypic); Pachymitra rufa (homotypic); Pachymitra velutina; Psilocarya divergens; Psilocarya mexicana; Psilocarya pauloensis; Psilocarya pohlii; Psilocarya rufa; Psilocarya sellowiana; Psilocarya velutina (homotypic); Psilocarya velutina var. glabrescens; Rhynchospora aureiformis; Rhynchospora kuekenthalii (heterotypic); Rhynchospora mexicana (heterotypic); Rhynchospora niederleiniana; Rhynchospora rufa; Rhynchospora rufa var. liebmanniana; Rhynchospora velutina f. glabrescens; Rhynchospora velutina var. divergens (homotypic); Rhynchospora velutina var. glabrescens; Rhynchospora velutina var. pohlii (homotypic); Rhynchospora velutina var. sellowiana; Schoenus velutinus (homotypic)