Plant Evolution to Avoid Humans?

A recent study came out that claimed that some plants have evolved explicitly to avoid harvesting by humans. The study claimed that a species of plant, Fritillaria delavayi, a plant whose bulb is used regularly in Chinese herbal medicine, has evolved to make it harder for humans to find it and harvest it. The study, published in the journal Current Biology, is very interesting, but equivocates on the word “evolution”, like most so called evidences for evolution do.