Green briar...roots look like a sweet potato...Google Image Result for https://farm8.staticflickr.com/7008/6645104923_4717ba4821.jpg
The temps have been upper 80's - low 90's with high humidity and dew points...feels like 100+ some days.
Except for 4 straight pieces we put on the trailer, it all went on their burn pile. We have used the XS400 some here and carried it to PA GTG. Probably have 5-6 tanks thru it now. I like it, lighter weight, fast cutter. Not as torquey as the 461 or 4910. I'm still learning the auto- tune...