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n. - Any of various plants of a particular genus of tropical and warm regions of especially North America that take their name from their loose heads of purple to rose flowers that quickly take on a rusty hue.

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Usage examples (6)
  • The one ironwood , vernonia noveboracensis , plant inside the garden produced many flowers.
  • These insects are two-brooded and the first brood feeds not only on the leaves of the grape, but on tulip, sassafras, vernonia and raspberry.
  • Collaborative efforts have been focused on the vernonia trials at Africa University in Zimbabwe, where research is centered and a seed oil processing facility has been...
  • The low viscosity of vernonia oil should make it a good solvent in paint manufacture and the highly reactive epoxy group will cause it to become chemically bound in the...
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We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.