I'm all open for plants having a distinct equivalent to our nervous system.
As of today, we haven't found it. We are finding more and more interesting things about them, that they react in more complicated ways than we thought. However, we can also setup complicated traps that are mechanical or chemicals, yet those traps don't qualify as sentient entities. As far as I know reading the articles, I don't consider the plant can "hear" the way the word is supposed to mean. It reacts to vibrations yes, but the fact it feels and emotes from it is yet to be proven.
Our brain is only chemical reactions though, of an enormous complexity, so I still find the subject a little bit fascinating.
On another note, I am more and more annoyed by IFLS article titles which are misleading and sensationalist. Not to mention they post the same things every other week over and over to get more posts.