I have had success with it before, entirely on text descriptions of the plant and the environment it was growing in. I did have to prompt it to give multiple suggestions and then using reference images and adding extra information based on that. Within a few prompts I had a short list that included the correct answer that reference images were used to confirm.

If you already have an idea without AI, sure go with that first. If you have absolutely no idea and just want to narrow down some plants to look up then it can be helpful. I hadn’t even heard of this plant before so guessing would be impossible.