Cyclamen is a genus of flowering plant found on Earth and Preplanis.
The Robinsons encountered a gigantic species of telepathic cyclamen that had limited mobility as well as the power to create replicas of objects and people. These cyclamen thrived on deutronium and created a duplicate of Judy Robinson that they used as their agent. The cyclamen were thwarted when Will Robinson determined that their freezing temperature was 44 degrees Fahrenheit. ("Attack of the Monster Plants")