???
When you rub against them or run into them? A leaf falling animation happens... Kinda cute. But the trees have always had some kind of moss on them...

_{This took way too long to upload, but is this what you're referring to?
Some trees in the first forest also have ferns growing on them.. not so much vines.}

_{Some trees have ferns near the base, and pine trees are usually kinda mossy. But I'm not sure what vines you're talking about without a screenshot..}

<sub>Can't post it? As in you don't know how, or?

Use an image-hosting site such as imgur.com or tinypic.com, upload there, copy the "direct link" and either post it directly or post it in [img] tags.
( [img] URL [/img*] without the * and replace "URL" with the image's direct link (ends in .png/.gif/.jpeg/etc.))</sub>

You don't have to register to use Tinypic.

How are you taking the screenshots? Are you playing in fullscreen and pressing the Print Screen button on your computer? That'll be why it's black if that's the case. Ingame, you need to press the P key to take pictures.

To get to your screenshots, right click the Endless Forest icon on your desktop, select 'Open file location,' and once you're there, go to the screenshots folder. Then, click the button that says 'compatibility files' (you may need to click a 'more options' button to see it) and there you will find your screenshots.

Cut and paste the screenshots to your pictures folder for easy access, and then you can upload it to tinypic with no problem.