Serratula tinctoria
Encyclopedia
Serratula tinctoria, commonly known as Saw-wort, is a species in the genus Serratula
Serratula
Serratula is a genus of at least 17 species in the daisy family native to the old world. Serratula as traditionally defined contains at least two groups: one of which is basal within the subtribe Centaureinae and one of which is derived; the former group can be moved to the genus Klasea.Various...

. It is a native of Europe. It grows in moist soil, full sun to part shade, and grows up to one meter tall.

This is an introduced plant in a small area of the northeastern United States, where it is called the Dyer's plumeless saw-wort.
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