noun
stiffly branching Old World annual with pale yellow flowers; widely naturalized in North America; formerly used medicinally
• Syn: ↑Sisymbrium officinale
• Hypernyms: ↑herb, ↑herbaceous plant
• Member Holonyms: ↑genus Sisymbrium
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noun : a plant of the genus Sisymbrium; especially : a stiffly branching Old World annual herb (S. officinale) with pale yellow flowers that is widely naturalized in No. America and was formerly used in medicine as a diuretic and expectorant
Useful english dictionary. 2012.