/ Thesaurus / E Synonyms of equisetum sylvaticum Find synonyms for: Noun1. wood horsetail, Equisetum Sylvaticum, horsetailusage: Eurasia except southern Russia; northern North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language