 | Quercus x warei 'Long' ( Regal Prince) | 06-1500-7 | | Hybrid Oaks on Campus | Tree > 30 feet, Deciduous, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Quercus x warei 'Long' ( Regal Prince) | 06-1500-4 | | Hybrid Oaks on Campus | Tree > 30 feet, Deciduous, Full sun, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Quercus x warei 'Long' ( Regal Prince) X Q. comptoniae | 06-1800-11 | | Hybrid Oaks on Campus | Tree > 30 feet, Full sun, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Quercus x warei 'Long' ( Regal Prince) X Q. comptoniae | 06-1800-17 | | Hybrid Oaks on Campus | Tree > 30 feet, Deciduous, Full sun, Zone 5a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Quercus x warei 'Long' ( Regal Prince) X Q. comptoniae | 06-1800-2 | | Hybrid Oaks on Campus | Tree > 30 feet, Full sun, Zone 5a |
| Quercus X Warei 'Long' open | 06-1500-3 | | Hybrid Oaks on Campus | Tree > 30 feet, Deciduous, Full sun, Zone , Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
| Quercus x warei 'Long' open | 06-1500-7 | | Hybrid Oaks on Campus | Tree > 30 feet, Deciduous, Full sun, Zone , Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Rhamnus cathartica | Common Buckthorn | | Native and Invasive Plants | Shrub > 8 feet, Deciduous, Full sun, Part shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Rhododendron 'P.J.M.' | P.J.M. Rhododendron | | Broad-leaved Evergreens | Shrub 4 to 8 feet, Evergreen, Full sun, Part shade, Shade, Zone 5a, Can tolerate acid to neutral soil (pH 5.0 to 7.4) |
 | Rhododendron catawbiense | Catawba Rhododendron | | Broad-leaved Evergreens | Shrub 4 to 8 feet, Evergreen, Part shade, Zone 4a, Requires acid (pH 5.0 to 7.0) |
 | Rhododendron maximum | Rosebay Rhododendron | | Broad-leaved Evergreens | Shrub > 8 feet, Evergreen, Part shade, Shade, Zone 3b, Requires acid (pH 5.0 to 7.0) |
 | Rhododendron mucronulatum | Korean Rhododendron; Korean Azalea | | Low pH | Shrub 4 to 8 feet, Deciduous, Part shade, Zone 5a, Can tolerate acid to neutral soil (pH 5.0 to 7.4) |
 | Rhododendron schlippenbachii | Royal Azalea | | | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 4a, Requires acid (pH 5.0 to 7.0) |
 | Rhododendron yakushimanum | Yakushima Rhododendron | | Broad-leaved Evergreens | Shrub 4 to 8 feet, Evergreen, Part shade, Zone 5a, Requires acid (pH 5.0 to 7.0) |
 | Rhodotypos scandens | Jetbead | | Dogwood & Common Shrubs | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 5a, Can tolerate acid to neutral soil (pH 5.0 to 7.4) |
 | Rhus aromatica | Fragrant Sumac | | Flowering Landscape Shrubs;
Cornus, Viburnum, and Friends - Winter Identification | Shrub 4 to 8 feet, Groundcover, Deciduous, Full sun, Zone 3a, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Rhus copallina ( Rhus coppalinum) | Flameleaf Sumac, Shining Sumac | | Native and Invasive Plants | Shrub > 8 feet, Deciduous, Full sun, Zone 4b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0), Tolerates salt spray |
 | Rhus typhina | Staghorn Sumac | | Native and Invasive Plants | Shrub > 8 feet, Deciduous, Full sun, Part shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Ribes alpinum | Alpine Currant | | | Shrub 4 to 8 feet, Deciduous, Full sun, Part shade, Zone 3b, Can tolerate acid to alkaline soil (pH 5.0 to 8.0) |
 | Robinia hispida | Rose Acacia; Bristly Locust | | | Shrub > 8 feet, Deciduous, Zone 4b |
