bitterroot

/B IH1 T ER0 R UW0 T/
noun
  1. 1

    Lewisia rediviva, a small, low, pink flower with a yellow center.

  2. 2

    Gentiana lutea (great yellow gentian, bitterwort)

  3. 3

    Apocynum androsaemifolium (fly-trap dogbane).

adjective
  1. 1

    (usually used attributively) Having bitter roots.