Psilophyta is classified under the kingdom, Plantae. It lacks true roots and leaves
but contains elements that are seen in many vascular plants, making itself a vascular plant. Psilophyta included forms such
as Psilophyton and Rhynia but are now classified in two genres of Psilophytes, which are Psilotum and Tmesipteris. Because
Psilophyta does not have true roots, it is anchored by a long stem called a rhizome. Rhizomes produce unicellular rhizoids
which act like root hairs for Psilophyta to stay erect and structured.