lions tooth

from The Collaborative International Dictionary of English v.0.48

Leontodon \Le*on"to*don\ (l[-e]*[o^]n"t[-o]*d[o^]n), n. [Gr.
   le`wn, le`ontos, lion + 'odoy`s, 'odo`ntos, tooth. Cf.
   {Lion's-tooth}, {Dandelion}.] (Bot.)
   A genus of liguliflorous composite plants, including the fall
   dandelion ({Leontodon autumnale}), and formerly the true
   dandelion; -- called also {lion's tooth}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Lion's tooth \Li"on's tooth`\ (l[imac]"[u^]nz t[=oo]th`); pl.
   {Lions' teeth} (l[imac]"[u^]nz t[=e]th`). (Bot.)
   See {Leontodon}.
   [1913 Webster]