| Botanical Name |
Authority |
| Qiongzhuea (Chimonobambusa) spp. |
NAPPRA |
| Quercus spp. |
Treatment |
| Quinchamalium spp. |
Parasitic |
| Racemobambos (= Neomicrocalamus) |
NAPPRA |
| Radamaea spp. |
Parasitic |
| Rafflesia spp. |
Parasitic |
| Ranunculus acriformis |
ESA-E |
| Ranunculus aestivalis |
ESA-E |
| Ranunculus hawaiensis |
ESA-E |
| Ranunculus mauiensis |
ESA-E |
| Raphanus sativus |
FSA-V |
| Raphioacme zeyheri |
CITES III |
| Raputia spp. |
Treatment |
| Raputiarana spp. |
Treatment |
| Rauia (= Angostura) spp. |
Treatment |
| Raulinoa spp. |
Treatment |
| Ravenia spp. |
Treatment |
| Ravenia louvelii |
CITES |
| Ravenia rivularis |
CITES |
| Raveniopsis spp. |
Treatment |
| Remya kauaiensis |
ESA-E |
| Remya mauiensis |
ESA-E |
| Remya montgomeryi |
ESA-E |
| Renanthera imschootiana |
CITES |
| Rettbergia (Chusquea) spp. |
NAPPRA |
| Rhamphicarpa spp. |
NW |
| Rhadinothamnus spp. |
Treatment |
| Rhamphicarpa spp. |
Parasitic |
| Rhaphispermum spp. |
Parasitic |
| Rheum x rhabarbarum |
FSA-V |
| Rhinanthus spp. |
Parasitic |
| Rhipidocladum spp. |
NAPPRA |
| Rhizanthes spp. |
Parasitic |
| Rhizomonanthes spp. |
NW |
| Rhodiola integrifolia ssp. integrifolia |
ESA-E |
| Rhodiola integrifolia ssp. leedyi |
ESA-E |
| Rhododendron chapmanii |
ESA-E |
| Rhoiacarpos spp. |
Parasitic |
| Rhopalocnemis spp. |
Parasitic |
| Rhopalopilia spp. |
Parasitic |
| Rhus michauxii |
ESA-E |
| Rhynchochorys spp. |
Parasitic |
| Rhynchospora knieskernii |
ESA-T |
| Ribes echinellum |
ESA-T |
| Ricinus communis |
FSA-A |
| Rollandia (Cyanea) crispa |
ESA-E |
| Rorippa gambellii |
ESA-E |
| Rorippa nasturtium-aquaticum |
FSA-V |
| Rottboellia exaltata (= cochinchinensis) |
NW |
| Rubus alceifolius |
NAPPRA |
| Rubus fruticosus (syn. Plicatus) |
NW |
| Rubus moluccanus |
NW |
| Rumex acetosa |
FSA-V |
| Rumex hypogaeus |
NW |
| Rumex sagittatus |
NAPPRA |
| Rumex spinosus |
NW |
| Rutaceae family |
Treatment |
| Rutaneblina spp. |
Treatment |
