At the very southern edge of the Purviniškės telmological reserve there is a magnificent Purvino II oak tree (height – about 19.5 m). Its trunk is wide and forks into two at a height of 4 m. The oak is also distinctive with beautiful winding branches. Trunk girth at 1.3 m height – 4.5 m, diameter – 1.31 m, crown width – 16.5 m, crown height – 15.5 m. The oak has been green for over 180 years.