Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
fĭlĭcŭla (felic-), ae, f. dim. [filix], a plant, also called polypodion, rock-fern, polypody, Plin. 26, 8, 3 7, § 58; Cato, R. R. 158, 1; Col. 6, 27, 11; Cels. 2, 12.