The notion that only humans use language has been overcome. We grand some animals – like whales or birds – the use of some sort of language. The idea that plants use language is quite new to our western mind.
I find it fascinating to think that not only trees communicate, but that plants actually speak. As Stephen Buhner writes “Each chemistry a word imbued with import, all together a language that possesses its own grammar and syntax. Its own underlying epistemology”.