Question: Which plant grows further North, Zamia or Vallea?
Sentence (from "Sisymbrium altissimum"): Common names of the plant include Jim Hill mustard, after James J. Hill, a Canadian-American railroad magnate, tall tumblemustard, tall mustard, tumble mustard, tumbleweed mustard, tall sisymbrium, and tall hedge mustard.
Relevant evidence: No