WHOLE PLANT MEMORY. “Namely, developmental decisions, such as vernalization, flowering induction, photomorphogenesis or breaking of seed dormancy depend on long-term integration and evaluation of light or temperature inputs, sometimes recorded and recalled after a time far exceeding the normal duration of the plant’s life cycle. For example, Stellaria seeds can recall whether they have been imbibed in darkness or in light even after more than a year. Further examples of similar long-term “data collection”.”
http://www.tandfonline.com/doi/full/10.4161/psb.4.5.8276#abstract