Eastern pasque flower eas·tern·pas·queflower uncommon noun 1. short hairy perennial with early spring blue-violet or lilac flowers; North America and Siberia SynonymsAmerican pasqueflowerEastern pasque flowerwild crocuslion's beardprairie anemoneblue tulipAmerican pulsatillaPulsatilla patensAnemone ludoviciana Related words Broader terms pasqueflower WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.