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  1. More Images

    Carduus acanthoides

    Carduus acanthoides, known as the spiny plumeless thistle, welted thistle, or plumeless thistle, is a biennial plant species of thistle in the family Asteraceae. The plant is native to Europe and Asia and introduced in many other areas, where it is sometimes considered an invasive species. Wikipedia

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  4. Carduus acanthoides Photo: Joseph DiTomaso Synonyms: Carduus fortior Common names: plumeless thistle; bristly thistle; giant plumeless thistle; spiny thistle Carduus acanthoides (plumeless thistle) is a tall biennial (family Asteraceae) with spiny leaves that colonizes disturbed open sites, roadsides, pastures, annual grasslands, and waste areas. It can inhibit growth of native plants in its ...
  5. extension.umn.edu

    How to identify plumeless thistle Plumeless thistle (Carduus acanthoides) is a biennial herbaceous plant that grows up to six feet tall. Often has a basal rosette for the first year and bolts the second. Stem Branched stems have vertical leafy wings with spines on the tips and are covered with many spiny leaves. Plant produces one to several flowering stocks when it bolts. Flower stems are ...
  6. botanicalrealm.com

    Broad-winged Thistle (Carduus acanthoides) The Broad-winged Thistle (Carduus acanthoides) is a remarkable plant that captivates the hearts of botanists and nature lovers alike. Known for its striking appearance and resilience, this biennial thistle brings both beauty and ecological importance to the landscapes it inhabits.
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