Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† alsīnē, ēs, f., = ἀλσίνη, a luxuriant plant, perh. chickweed: Stellaria nemorum, Linn.: Alsine, quam quidam myosoton appellant, nascitur in lucis, unde et alsine dicta est, Plin. 27, 4, 8, § 23.