/ Thesaurus / A Synonyms of asclepias speciosa Find synonyms for: Noun1. showy milkweed, Asclepias speciosa, milkweed, silkweedusage: milkweed of southern North America having large starry purple and pink flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language