pol·y·po·dy 
(pŏlē-pō′dē)
(pŏlē-pō′dē)n. pl. pol·y·po·dies
Any of various ferns of the genus Polypodium, or formerly classified in this genus, having creeping rhizomes and often evergreen fronds with narrow undivided leaflets.
[Middle English polypodie, from Latin polypodium, from Greek polupodion, from diminutive of polupous, many-footed : polu-, poly- + pous, pod-, foot; see -POD.]