If you go to that entry in PlantFiles, there's a button in the upper right hand corner that says Report an Error. Click on that and tell us what you want added or changed. It's also helpful if you can tell us what your references are , or a include a link or links that supports the change/addition. Not absolutely necessary, but if you do have them, it saves us some research time.
If you have any problems, reply here and we can help.