Spanish Coins Iris, Iriswarehouse, MTB Iris (Miniature Tall Bearded Iris), Hybridizer, Witt, Year of Registration, 1976). Height, approximately 23-25" tall, Midseason. Description: bright yellow self with orange beard. Prolific grower. Wonderful plant and grows like crazy! Historic iris (over 30 years from the date of registration), Awards: HM in 1977.Parentage: Mother: Dancing Gold X unknown.