“With a name that literally means “shy,” the Mimosa pundica is a particularly unique piece of flora, as it responds to touch by folding inward to protect itself from predators. Wondering if this was just a straightforward reflex, the Australian researchers rigged up an apparatus that would drop water on the plant in both high- and low-light environments. Much to their surprise, they found that the plant stopped opening and closing once it learned that the drops weren’t harmful. More impressively, the plants remembered that lesson several weeks after the initial training.”
The memory is likely a projection preserved in Calcium and Water.