The broad, rounded crown of this bonsai is typical of the way Chinese elm and many other tree species grow in sub tropical environments such as southern California. California bonsai artist John Naka raised this tree from a cutting he struck in 1970. After just a couple of years in a nursery pot, the young tree had already developed numerous long roots. In 1972, Mr. Naka found this shapely piece of black lava while on a tree collecting outing in southern Washington State. The rock and tree seemed made for each other, so Mr. Naka combined them in a “root-over-rock” style bonsai composition. The bonsai has been featured in the publication “Bonsai in California”.