Carduus
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Asteraceae
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Scientific Name
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Description
Genus Description - Much like Cirsium, differing chiefly in its pappus of merely capillary, not at all plumose bristles; stem commonly spiny-winged; achenes quadrangular or somewhat flattened, with 5–10 or more nerves, or nerveless. 100, Old World.
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Common Names
thistle