from The Century Dictionary.

  • noun A name of several umbelliferous plants.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A tall and coarse European umbelliferous plant (Peucedanum Ostruthium, formerly Imperatoria).
  • noun The Astrantia major, a European umbelliferous plant with a showy colored involucre.
  • noun Improperly, the cow parsnip (Heracleum lanatum).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any plant of the genus Astrantia


from Wiktionary, Creative Commons Attribution/Share-Alike License

From master +‎ wort.


  • One of the most interesting is a multi-year observation of altered life-cycles in local flora (like jewelweed, chickweed, masterwort, goldenrod, etc.) under the kudzu.

    Books Most Important to You

  • There's wormwood, woodsorrel, masterwort, zedoary, and angelica; and lastly, there is a little bottle of the sovereign preservative against the plague, as prepared by the great Lord

    Old Saint Paul's A Tale of the Plague and the Fire


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