Castor-aralia (Kalopanax pictus aka K. septemlobus)

Castor-aralia has an extensive range in northeastern Asia, from Sakhalin and Japan west to southwestern China as a slower growing tree in Southwest Ohio. The most interesting feature is randomly placed thorns from end to end on this tree. They are more pronounced on the foliar portions but show caution before leaning against or trying to climb this tree. Leaves resemble castor-bean foliage with seven lobes per leaf. Although literature suggests a 60-foot height, the growth rate suggests something lower. Spring Grove’s specimen measured a 24-inch circumference, 19-foot height, 18-spread with 47-points. This smallish tree can be found in Section 115 across from Section 117.