Senecio sylvaticus L.
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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
Species Description - Annual 1.5–8 dm from a ± evident taproot, leafy throughout, generally simple to the infl, sparsely or moderately pubescent with crisp loose hairs, or subglabrous; lvs all ± pinnatifid and irregularly toothed, 2–12 cm × 4–40 mm; heads several or many, the disk 3–7 mm wide; invol 5–7 mm, its principal bracts ca 13; bracteoles inconspicuous or wanting, not black-tipped; rays reduced and inconspicuous, less than 2 mm; pappus very copious, equaling or surpassing the disk- fls; achenes strigillose-canescent; 2n=40. A weed in disturbed soil and waste places; native of Europe, established here and there in the n. part of our range, especially in n. N. Engl. July–Sept.
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Common Names
woodland-groundsel