Field Guide to Noxious and Other Selected Weeds of British Columbia

Stinkweed (Thlaspi arvense)


  • annual to winter annual in the Mustard Family growing to 0.6 metres; leaves clasp the stem with ear-like lobes; white, four-parted flowers; green, rounded seed pods, surrounded by a broad winged border, become yellow to greenish-orange at maturity
  • young plants when crushed give off a rank, offensive odour; can taint milk and meat of grazing animals

Photo courtesy Dean Swan, Washington State University (retired)

Flattened, winged seedpods

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