| Rhaphiolepis indica |
Indian Hawthorn |
| Rhaphiolepis integerrima |
Entire-Leaved Raphiolepis; Entire Leaved Raphiolepis |
| Rhaphiolepis umbellata |
Yeddo Hawthorn |
| Rhapis excelsa |
Lady Palm |
| Rheum rhaponticum |
Rhubarb |
| Rhinacloa clavicornis |
|
| Rhinella marina |
Cane Toad; Giant Toad, Cane Toad |
| Rhipicephalus sanguineus |
Brown Dog Tick |
| Rhizoctonia solani |
|
| Rhizoglyphus callae |
|
| Rhodobium porosum |
Yellow Rose Aphid |
| Rhododendron |
Azaleas and Rhododendrons |
| Rhododendron viscosum |
Azalea; Swamp Honeysuckle |
| Rhopalosiphum rufiabdominalis |
Rice Root Aphid |
| Rhopalostylis baueri |
Kermadec Island Nikau; Bauer's Rhopadostylis |
| Rhynchodemus sylvaticus |
Land Planarian |
| Rhynchosia precatoria |
Punche; Spotted Dolicholus |
| Rhyparobia maderae |
|
| Rhytidoporus indentatus |
|
| Rhyzobius lophanthae |
|
| Rhyzopertha dominica |
Lesser Grain Borer; |
| Ribes rubrum |
Red Currant; Garden Currant; Red Currant |
| Ribes uva-crispa |
Garden Gooseberry |
| Ricinus communis |
Castor Bean; Castor Oil Plant |
| Rivina humilis |
Rouge Plant; Rougeberry |
| Robinia pseudoacacia |
Black Locust Tree |
| Rodolia cardinalis |
|
| Rondeletia odorata |
Rondeletia; Panama Rose |
| Rosa bracteata |
Macartney Rose |
| Rosa damascena |
Garden Rose |
