Others think they are solar buildings made of recycled materials - great. Plants of various types and species once covered the planet. Their existence made the planet more. Now, it is humanity that is becoming the nature of the planet. There is a major difference.
Plants have a way of unconsciously and continuously making the planet better for themselves.
Humans have a way of consciously and continuously making the planet worse for themselves - and for plants. My reaction to this is that, the more we interact with and learn from plants and the Earth, the more we will learn about our own survival. Our life methods must evolve to be more like those of planets. Intelligence or not, plants have it together on the Earth - we don't. This involves changing building methods, changing utility methods, changing living methods, and ultimately changing thinking and understanding methods.