Also most people have little to no reason to identify plants. Most of the time we don’t even eat the whole plant, we eat the fruit or the root or some very specific part of the plant. You could easily identify a potato, but could you identify a potato plant? There are a lot of plants where you see a part of it in the store but you’ve never seen the entire plant. I never knew I had asparagus growing in the garden because what is sold in the store is not what grown asparagus looks like. We don’t eat grown asparagus, we eat the young shoots before they’ve turned woody. A grown asparagus is inedible and the berries are toxic.