Ladys slipper

from The Collaborative International Dictionary of English v.0.48

Impatiens \Im*pa"ti*ens\ ([i^]m*p[=a]"sh[i^]*[e^]nz), prop. n.
   [L., impatient.] (Bot.)
   A genus of plants, several species of which have very
   beautiful flowers; -- so called because the elastic capsules
   burst when touched, and scatter the seeds with considerable
   force. Called also {touch-me-not}, {jewelweed}, and
   {snapweed}. {Impatiens Balsamina} (sometimes called {lady's
   slipper}) is the common garden balsam.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Lady's slipper \La"dy's slip"per\ (l[=a]"d[i^]z sl[i^]p"p[~e]r)
   n. (Bot.)
   Any orchidaceous plant of the genus {Cypripedium}, the
   labellum of which resembles a slipper. Less commonly, in the
   United States, the garden balsam ({Impatiens Balsamina}).
   [1913 Webster]