Dumb Cane or Mother-in-Law Plant

Scientific Name

Dieffenbachia picta

Common Name

Dumb cane, mother-in-law plant


House plant

Toxicity: 2

Ingestion may cause minor symptoms such as rash, vomiting or diarrhea.

Toxic Parts

All parts


  • Perennial herb
  • Leaves alternate on stem
  • Simple, large, mottled leaves with white, yellowish, and different shades of green
  • Flowers in a spadix surrounded by a spathe


The list of poisonous plants on this web site does not necessarily include every poisonous plant that is known or that might be found in a home or yard. The University of Kansas Hospital does not advise eating any of the plants on this web site. We discourage the use of any of these plants for self medication. The information on this site is taken from the literature, and the degree of reliability is unknown. In case of accidental exposure or ingestion, contact the Poison Center 1-800-222-1222.