| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Benedict' | Small | Med-Green | - | - | Nat-Sport | Pale-Lavender | - | Gowen, Hideko | --NR-- |
| 'Benedict Strain' | - | - | - | - | xDuplicate | - | - | Duplicate Name | --NR-- |
| 'Benedict's Blue' | Large | Blue/Green | - | - | Nat-Sport | Near-White | June into July | Zilis, Mark | --NR-- |
| 'Benedict's Folly' | Large | Med-Green | - | - | Unknown | - | - | Benedict, Dr Ralph (Herb) | --NR-- |
| 'Benedict's Heart's Desire' | Medium | Med-Green | - | - | Unknown | - | June into July | Benedict, Dr R. (Herb) & Dorothy & Kuenster, Rod | .2010 |
| 'Benedict's Jelly Bean' | Medium | Blue/Green | - | - | Unknown | - | July into August | Benedict, Dr R. (Herb) & Dorothy & Kuenster, Rod | .2010 |
| 'Benedict's Regal Rhubarb' | Medium | Med-Green | Marginal | White | Unknown | - | - | Benedict, Dr R. (Herb) & Dorothy & Kuenster, Rod | .2010 |
| 'Benedict's Wild Fire' | Small | Blue/Green | - | - | Unknown | Med-Lavender | August to September | Benedict, Dr R. (Herb) & Kuenster, Rod | .2010 |
| H. longipes | Small | Dark-Green | - | - | Unknown | Light-Purple | August to October | Species from Japan | --NR-- |
| H. montana | Large | Med-Green | - | - | Unknown | Pale-Lavender | June into July | Species from Japan | --NR-- |
| H. venusta | Miniature | Med-Green | - | - | Unknown | Pale-Lavender | June into July | Species from Korea | --NR-- |
|