most often this implies a specific plant or tree, but occasionally a botany term; such as infundibuliform.
We included familiar tree species as well since many people could not identify an i.e. elm tree, even if they live on Elm Street. A small town near us has all the streets named after trees, yet not one of these trees is actually planted on its associated street (the invasive pear tree is planted on every street instead). No wonder people are confused.