From observations at the moment, D. agudensis seems to be endemic to the collection area. Therefore the number of endemic species of Dyckia reported in Rio Grande do Sul would rise to 9 (from data about the other species, see. Winkler, 1982)
at this current time, only on top of Cerro Agudo, in the municipal district of Agudo, in the depression of central Rio Grande do Sul. Cerro Agudo has a basalt formation, covered by Atlantic forest with the exception of the top, where the basalt surfaces and forest are substituted by a xerophytic vegetation, where cactus and D. agudensis prevail.
