Noun pennycress has 1 sense
  1. pennycress - any of several plants of the genus Thlaspi
    --1 is a kind of
    weed
    --1 is a member of Thlaspi, genus Thlaspi
    --1 has particulars:
     field pennycress, French weed, fanweed, penny grass, stinkweed, mithridate mustard, Thlaspi arvense
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