A Căpcăun is a creature in Romanian folklore, depicted as an ogre who kidnaps children or young ladies (mostly princesses). It represents evil, as do its counterparts Zmeu and the Balaur. In most Romanian publications of other European works the names of creatures such as Ogres or Trolls are usually translated as căpcăun. The Romanian word appears to have meant "Dog-head" (căp being a form of cap, meaning "head", and căun a derivative of câine, "dog"). According to Romanian folkloric phantasy, the căpcăun has a dog head, sometimes with four eyes, with eyes in the nape, or with four legs, but whose main characteristic is anthropophagy.
The term căpcăun also means "Tatar chieftain" or "Turk chieftain", as well "pagan".
Some linguists consider căpcăun to be an echo of a title or administrative rank, such as kapkan (also kavhan, kaphan, kapgan) used by various Central Asian tribes who invaded Eastern Europe during late antiquity and the medieval era, such as the Pannonian Avars, Bulgars and Pechenegs.[1]
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction