Epithets
| Name | Description |
|---|---|
| racemosa |
with racemes |
| racemosum |
with racemes |
| radicans |
with stems taking root |
| radula |
scraper-like |
| ramiflora |
flowers on older branches |
| ramosa |
branched |
| ramosum |
branched |
| recta |
erect |
| recti- |
erect |
| rectus |
erect |
| recurvatus |
curved back |
| recurvus |
curved back |
| rediviva |
coming back to life |
| redivivum |
coming back to life |
| redolens |
scented |
| regalis |
royal |
| regia |
royal |
| regina |
queen |
| reginae |
queen |
| regius |
royal |
| religiosa |
sacred |
| religiosus |
sacred |
| reni- |
prefix meaning "kidney" |
| repanda |
curved up |
| repandum |
curved up |