Vittaria, the shoestring ferns, is a genus of ferns in the Vittarioideae subfamily of the family Pteridaceae. It had previously been placed in the family Vittariaceae, but that family is no longer recognized. Vittaria consists of epiphytes, with simple, entire, narrowly linear fronds. It comprises six species, five of which are native to the neotropics. Vittaria isoetifolia is native to tropical Africa and islands of the southwestern Indian Ocean. Vittaria isoetifolia and Vittaria lineata are known, albeit rarely, in cultivation.Learn more about Grass Fern