I used to spend time with this lady from New Orleans, whom everyone called VooDoo. I should have taken that as a warning, but I didn't. Besides her brown eyes and her magical elven voice, my main purpose for keeping her around was that she was a professional horticulturalist and could identify any plant or tree I pointed to. I tested her skills quite often. She might have just been making up names for plants, but I believe she was pretty earnest and most likely very accurate.
She eventually discovered my ulterior motive (or she got a better offer) and invited me to no longer spend afternoons and evenings with her. That left me with no way to identify plants and trees afield, but it left me with a desire to know what they were.
For many years, I gave up on my quest and wistfully lamented losing my infinite font of knowledge about plants. Then, the latest generation of smartphones came out, and a friend told me about an application called "Picture This" that could identify any plant and give you care guidelines for it. For about six dollars, I could once again know the name of any plant I looked at without having to worry about the capricious nature of brown-eyed girls from New Orleans or anyone who even their dearest friends called VooDoo.