The orchid Dendrobium Hatsumi is a hybrid registered with the Royal Horticultural Society by Kokusai in 1997. It is originated by T.Kasahara
Top three species ancestors and their influences are

• Dendrobium lawesii (50.00%)  section: Calyptrochilus 
• Dendrobium victoriae-reginae (50.00%)  section: Calcarifera