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Project Noah Nature School
Sonchus asper
Upright, rather coarse annual, to 6 ft, but usually shorter. Stem is usually single with branching at top. Yellow flowers grow in clusters, mostly near top of stem. Leaves are sharply toothed and have spines. Contains a milky sap.
Almost all soils and habitats. Introduced from Europe.
Spotted on Apr 7, 2012
Submitted on Apr 7, 2012
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