Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
scōpŭlae, ārum, f. [1. scopa, II.], a little broom, Cato, R. R. 26; Col. 12, 38, 4; also in sing.: scōpŭla, a broom-twig, id. 12, 18, 5.