Psilotum Nudum is a unique fern species that is also known by different names around the world. For instance, in Australia, it's often referred to as "whisk fern" due to its distinctive appearance. It is also called the "naked-branched fern" as it lacks leaves but instead has stem-like branches that are scattered with sporangia. Another alternative name for this species is "smooth hornwort" due to its smooth stems and resemblance to hornworts. In some regions, Psilotum Nudum is known as "snake-weed" due to its long, straggling, and slender stems. This plant's diverse names show how its unique characteristics have been observed and understood by different cultures.