ironweed


ironweed
/uy"euhrn weed'/, n.
any of certain North American composite plants of the genus Vernonia, having tubular, chiefly purple or red disk flowers.
[1810-20; IRON + WEED1]

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Any of about 500 species of perennial plants constituting the genus Vernonia (family Asteraceae).

Small herbaceous (nonwoody) species are found throughout the world; shrubs and trees are found primarily in tropical regions. Ironweed species have lance-shaped, toothed leaves that alternate along the stem; clusters of flower heads composed only of disk flowers (no ray flowers); and a ring of overlapping bracts below the flower heads. Some autumn-blooming species are cultivated as border plants for their attractive white, purple, or pink flower clusters.

Western ironweed (Vernonia fasciculata)

Dan Morrill

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plant
      any of about 500 species of perennial plants constituting the genus Vernonia of the family Asteraceae. Small herbaceous species are distributed throughout the world, while shrubs and trees are native primarily to tropical regions.

      Members of the genus have lance-shaped, toothed leaves that alternate along the stem; clusters of flower heads composed only of disk flowers (no ray flowers); and a ring of overlapping bracts (leaflike structures) below the flower heads. Some autumn-blooming species are cultivated as border plants for their attractive white, purple, or pink flower clusters.

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Universalium. 2010.

Look at other dictionaries:

  • Ironweed — Ironweed[1] sous titré La Force d un destin en France est un film américain d Hector Babenco sorti en 1987. Le film est un adaptation du roman Ironweed de William Kennedy récompensé du Prix Pulitzer de la fiction en 1984. Sommaire 1 Synopsis 2 …   Wikipédia en Français

  • Ironweed — I ron*weed , n. (Bot.) A tall weed with purplish flowers ({Vernonia Noveboracensis}). The name is also applied to other plants of the same genus. [1913 Webster] …   The Collaborative International Dictionary of English

  • ironweed — [ī′ərnwēd΄] n. [so named from its hard stem] any of a genus (Vernonia) of perennial plants of the composite family, with clusters of small, tubular, purple flowers …   English World dictionary

  • Ironweed — Filmdaten Deutscher Titel: Wolfsmilch Originaltitel: Ironweed Produktionsland: USA Erscheinungsjahr: 1987 Länge: 137 Minuten Originalsprache: Englisch …   Deutsch Wikipedia

  • Ironweed — This article is about the novel. For the film, see Ironweed (film). For the plant, see Vernonia Ironweed is a 1983 novel by William Kennedy. It received the 1984 Pulitzer Prize for Fiction and is part of Kennedy s Albany Cycle. It placed at… …   Wikipedia

  • Ironweed —    (la Force d un destin) Ironweed    Drame de Héctor Babenco, d après le roman de William Kennedy, avec Jack Nicholson, Meryl Streep, Carroll Baker, Michael O Keefe.   Pays: États Unis   Date de sortie: 1987   Technique: couleurs   Durée: 2 h 25 …   Dictionnaire mondial des Films

  • ironweed — noun Date: 1819 any of a genus (Vernonia) of mostly weedy composite plants usually having alternate leaves and perfect red, purple, or white tubular flowers in terminal cymose heads …   New Collegiate Dictionary

  • ironweed — noun Any of certain species of the genus Vernonia of forbs and shrubs …   Wiktionary

  • Ironweed — Vernonia (E) …   EthnoBotanical Dictionary

  • ironweed — i•ron•weed [[t]ˈaɪ ərnˌwid[/t]] n. pln any North American composite plant of the genus Vernonia having tubular, chiefly purple or red disk flowers …   From formal English to slang


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