I used iNaturalist website to list 500 most observed plant species in Eastern USA and Canada, and used a script to scrape the species names (scientific and common) and the URL of the title photo.
I used another script to download the images and build the anki deck.
My decks have just the photo on the front, then scientific name + common name + notes on back.
I’ve made many notes in my decks, mostly about the etymology of the scientific names to help remember them.
I’ve also added extra photos to the front to show other parts of the plant needed to distinguish from look-alikes, with notes on these features.
My reference is usually The Flora of Virginia and/or Sam Thayer’s recent field guide (which is a major new contribution through all his field observations).
I have not shared because the photos are mostly ALL RIGHTS RESERVED, but I’ve been considering redoing the photos using CC0/CC-BY (and asking some authors for permission but this is hard as iNat is pseudonymous).