| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Radiant Light' | Medium | Light-Green | - | - | Unknown | - | - | Livingston, Ron | --NR-- |
|
2
| 'Raucous Ruffles' | Medium | Blue/Green | - | - | Hybrid | - | - | Dean, Don | .2008 |
|
3
| 'Raz Pizzazz' | Large | Med-Green | Streaked | Speckles | Sport | Near-White | July | Martin, Bud | --NR-- |
|
4
| 'Red Bird' | Small | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
|
5
| 'Red Corvette' | Medium | Med-Green | - | - | Hybrid | Light-Purple | August to September | Moore, Jeff & Schwarz, Jim | .2015 |
|
6
| 'Red Light' | Medium | Dark-Green | - | - | Unknown | - | - | Unknown | --NR-- |
|
7
| 'Red Titanium' | | Blue/Green | | | Hybrid | | | Leuckx, Bart | --NR-- |
|
8
| 'Red Wine Fries' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | - | Van Wyke, Trudy | --NR-- |
|
9
| 'Reddy Eddy' | Large | Dark-Green | - | - | Unknown | - | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
10
| 'Renegade of Funk' | Large | Light-Green | - | - | Unknown | - | - | White, Jeff | --NR-- |
|
11
| 'Rifle Ron' | Medium | Dark-Green | - | - | Unknown | - | - | Schmidt, Bevie | --NR-- |
|
12
| 'Rime Ice' | Small | Med-Green | Streaked | Yellow | Sport | Med-Lavender | June into July | Lydell, Ransom | --NR-- |
|
13
| 'Rippled Green Cup' | Medium | Dark-Green | - | - | Unknown | - | - | Wade, Van | --NR-- |
|
14
| 'Rippling Rhythm' | Medium | Med-Green | - | - | Hybrid | Med-Lavender | July | Savory, Robert | .1998 |
|
15
| 'River Dance' | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | July | Dean, Don | .2020 |
|
16
| 'River's Edge' | Large | Blue/Green | Marginal | White | Sport | Pale-Lavender | July | Walek, Kevin | --NR-- |
|
17
| 'Robyn Duback' | Medium | Med-Green | Marginal | Yellow | Unknown | Med-Lavender | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
18
| 'Rock'n'Roll Heart' | Large | Blue/Green | - | - | Unknown | - | - | Port, Linda | --NR-- |
|
19
| 'Rocky Point' | Medium | Yellow | - | - | Unknown | - | - | Goodenough, Rick | --NR-- |
|
20
| 'Rough Rider' | Medium | Blue/Green | - | - | Unknown | - | - | Beilstein, Doug | --NR-- |
|
21
| 'Roxton Falls' | Giant | Blue/Green | - | - | Unknown | - | - | Bastille, Jocelyne | --NR-- |
|
22
| 'Ruffle My Feathers' | Small | Med-Green | Marginal | White | Sport | Med-Lavender | - | Livingston, Ron | --NR-- |
|
23
| 'Ruffle Truffle' | Small | Blue/Green | | - | Hybrid | - | - | Bendig, Matt | --NR-- |
|
24
| 'Ruffled Green Mouse' | Miniature | Dark-Green | | | Nat-Sport | Light-Purple | July | Van den Top, Jan | --NR-- |
|
25
| 'Ruffled Pale Face' | Small | Light-Green | - | - | Unknown | - | July into August | Schulz, Ed | .2002 |
|
26
| 'Ruffled Petticoats' | Large | Dark-Green | - | - | Hybrid | Pale-Lavender | July | Diesen, Bernie & Diesen, Jane | .1998 |
|
27
| 'Rust Bucket' | Medium | Yellow | - | - | Unknown | - | - | Goodenough, Rick | --NR-- |
|
28
| 'Rusty's Blue Star' | Miniature | Med-Green | - | - | Unknown | - | - | Rouillier, Denis | --NR-- |
|
29
| 'Rusty's Steroids' | Large | Med-Green | - | - | Unknown | - | - | Rouillier, Denis | --NR-- |
|
30
| 'Rutherford Birchard Hayes' | Medium | Light-Green | - | - | Unknown | Med-Lavender | - | Ruh, Peter & Ruh, Jean | .2010 |
|