| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Yellow River' | Smith, Eric & Ruh, Peter | Medium | Med-Green | Marginal | Yellow | Unknown | Near-White | July | .1993 .1995 |
|
2
| 'Yvonne' | Unknown | Unknown | Dark-Green | Medial | White | Unknown | Unknown | Unknown | --NR-- |
|