They are sometimes known by the ambiguous common name "torrent frogs".

Some ambiguous names do exist, which have been given to children of both sexes.

This is a partial list of those ambiguous names about the United States:

Aristotle wrote that ambiguity can arise from the use of ambiguous names, but cannot exist in the facts themselves:

There are sub sets of rules for ambiguous or alternative names.

Cascade frogs is a less ambiguous name.

More ambiguous common names are "figwood" and "watery fig".

Another common but rather ambiguous name is "palo santo" (Spanish: "holy wood").