None of the Mexican/equatorial Pinguicula go "dormant". Some of them simply have a growth phase where they produce smaller, more succulent leaves, even those that hide underground are still growing, and even blooming. This heterophyllous growth form has sometimes been mistakenly called, "dormant". Only the species that grow where the temperatures drop significantly below freezing, for extended periods of time, actually have a true dormancy, where they then form, what are called hibernacula (a winter resting bud).