how do you think they make hybrid orchids? They just split the stamen and tape them together. It's really that simple.
You were talking "evergreen" trees and cannabis....
They make hybrid orchids out of different species of orchids (generas/genus) not out of two completely different species of plant all together. Plus it is said that insects pollinate the orchids also to make hybrids occasionally. Below is a link for ya to check out. :jointsmile::thumbsup:

Hybridization Of Orchids

Understanding orchids
By William Cullina