The Hostapedia by Mark Zilis (2009), "...I've observed specimens in a few gardens and
seen a number of photos labeled 'Kara' and can come to only one
conclusion: 'Kara' and 'Tokudama
Flavocircinalis' are the same plant. Differences in site,
soil, and age would account for any perceived differences..."
Horinaka as the originator of the cultivar.