chenopodium rubrum

from WordNet (r) 3.0 (2006)

Chenopodium rubrum
    n 1: common Eurasian weed; naturalized in United States [syn:
         {red goosefoot}, {French spinach}, {Chenopodium rubrum}]

from The Collaborative International Dictionary of English v.0.48

Sowbane \Sow"bane`\, n. (Bot.)
   The red goosefoot ({Chenopodium rubrum}), -- said to be fatal
   to swine.
   [1913 Webster]

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