Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pălūdĭgĕna, ae, adj. gen. comm. [2. palus-gigno], marsh-born, that grows in marshes: paludigena papyrus, Poët. in Anth. Lat. 2, p. 462 Burm.