Well, yeah if you want to eat something you want to be sure. Even if you only take one photo, you can look at pictures of the leaves, flowers, and fruit. There’s a link to other sources, like Wikipedia, where you can get more info.

On android you can use an app called “PlantNet” to take a picture of a plant and find out what it is. I’ve learned about many of the plants growing around me this way and have found new edible things. Garlic mustard is a good example. It’s invasive but edible and pretty good, so eating it is also protecting local ecology.