Vindan holds the boast of being Aerenai's mate for the longest of any of the dragons in the clan, and thanks to the clan's dutiful scribe, that means a fair number of the clan's members can trace their lineage back to him. Though many of his children have long since found new purpose serving the elemental gods of Sornieth, a few remain in the clan and others nearby.
As for why his body is covered and composed of leaves and vines? Nobody is quite sure. Ask any dragon in the clan and they will be able to tell you as much that he was not originally like this, and that whatever it is, it's getting worse. (Or better, according to those few nature dragons.) It does not seem to affected his duties much, though it has at least ensured he smells better than many of the clan's other dragons.
Recently, several small animals have taken up residence in the foliage growing from his hide. They seem to be well behaved and loyal, and many of the other dragons have begun going to him for help with their own familiars