Pronunciation: (tuch'mē-not"), [key]
any of several plants belonging to the genus Impatiens, of the balsam family, esp. I. noli-tangere, bearing pods that, when ripe, burst on being touched, scattering the seeds. Cf. jewelweed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.