Posted: 29/01/2017 at 19:18
Cultivar. A plant that differs in some way from the species, but not enough to be a separate species.
Tends to be used to refer to cultivated variety, ie bred by man, but can occur in the wild.
Hybrid. A cross between 2 different species.
Variety. A rank in the classification system, beneath species
Genus - Species - Variety - sub species.
Not sure whether I have explained that well.