davallia(n = noun.plant) - any fern of the genus Davallia; having scaly creeping rhizomes;
is a kind of fern
is a member of genus davallia
has particulars: hare's-foot fern, ball fern, davalia bullata, davalia bullata mariesii, davallia mariesii, squirrel's-foot fern

davallia canariensis, davallia mariesii, davallia pyxidata, genus davallia