There seem to be a lot of trees in the category "other". Is there more detailed data for species and variety in another database somewhere, or is there a need f

There seem to be a lot of trees in the category "other". Is there more detailed data for species and variety in another database somewhere, or is there a need for a massive wiki-style tree-spotting data-gathering exercise? Could start now while they still have leaves on them and perhaps also fruit ... A propos that, if you ask it to show just "Black Locust" and "Horse Chestnut", then nothing is shown. But those are common trees! And they are also the two whose names consist of two words. So I suspect a BUG!