Schmid (1991) described groups of plants that have the same basic structure and vary only in their leaf color. The cultivars listed are very similar to each other and some are probably identical i.e. the same plant but with a different name.

This group was defined as "These yellow forms occur as natural mutations of H. 'Tokudama Flavocircinalis' and also arise in cultivation and tissue culture. They differ from other H. 'Tokudama' mutants by having lavender coloration in the flowers and less cupped and rugose leaves. Although several clones exist, they are virtually identical and are cultivated under the clonal name H. 'Golden Bullion'. Other distinct clones belonging to this group may exist and may be named in the future."