‘Gokusho-ba’ from the Japanese Gokusho, “very small” or “very holy”. The plant originates from Japan and was introduced by Mr. Yuji Suzuki in Kawaguchi City, Saitama Prefecture, Japan. He made the selection, named, and introduced the cultivar. I was kindly informed through the website for The National Collection of Ginkgo biloba and Cultivars in the United Kingdom by Brian Upchurch that he subsequently introduced it into the United States. The specimen in the National ciollection was obtained from a friend in the U.S.
 
Description - Ginkgo biloba ‘Gokusho-ba’. This is a haploid form (Haploid is the term used when a cell has half the usual number of chromosomes. A normal cell is diploid cells containing, one set of chromosomes from each parent).This condition affects plant in a number of ways but the most obvious is the size of leaf, which is much reduced, as is the case with this cultivar. The leaves are small 2.5cm across, blue grey in colour and many are slightly cupped, they occur at irregular intervals along the stem. The growth rate is 15cm -20cm year (under nursery conditions). The growth is irregular. It is conceivable that this plant could attain a height and spread of 1.2m - 1.5m in 10 years