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tansy-leaved rocket, Hugueninia tanacetifolia, Sisymbrium tanacetifolia | perennial stellate and hairy herb with small yellow flowers of mountains of southern Europe; perennial stellate and hairy herb with small yellow flowers of mountains of southern Europe; sometimes placed in genus Sisymbrium ❲Sisymbrium tanacetifolia, Hugueninia tanacetifolia❳ |