That's a really cool feature, that I never saw anywhere else.
You make an online game with it: display a photo like Evan's, then flash a plant name.
First person to click the right plant wins an acorn.
Last person loses one to the photographer.
Wrong clicks donate an acorn to the photographer.
Or, the last person and wrong clickers have to sip their beer!
Call it "101 Daylilies"