The Time-Life Complete Gardener Encyclopedia Have the time of your life on this time life page. It's hard to imagine the computer that can hold all this information, let alone do a search for it all. Search for any plant, in latin or common name.
Chances are, if it's cultivated, it's there.
Try the search engine. It will come up with lots of sites for your perusal. I prefer to simply browse the database. Used under License.