The information used will likely be that as originally described by whoever 'discovered' the plants. Often, another person later found the same plant and gave it a different name, that's where synonyms come in. A lot of study more recently has reverted some names to the original as that takes priority.
To find photographs it's easy enough to highlight the name then with a right click select "search with google" if you have it enabled, it saves a lot of work, I had to enable it on my present computer as it only had Bing search enabled.
The shame of man, taking plants to extinction!
