risichris!
Sorry, I do not know your plant. But someone will! No worries on posting in the wrong place. If something is in the wrong place one of the admins will move it to the right forum. We do have a Plant ID forum. So this might get moved there.
As for navigating the site, this is how I do it. I go thru the list of forums that interest me. In the top right corner of each forum's home page is a spot where you can click "watch this forum". When you do, your personal homepage will display that forum and indicate when new activity has happened.
You can also click to watch a specific thread. That is in the top left or bottom right. You will only get an message on your home page if there is new activity on that thread, it won't just be listed like the forums.
Also, if you could go to your public profile and add your location that is always helpful so people know where you are when asking questions. You do that in the top left right under the "All Things Plants" title. There is a little icon that looks like a person. click on that and then in the middle very top it says "change your public profile". Don't forget to save your changes at the bottom.
The best way to learn about the site is just hop around. You'll get the hang of it.
Again