- Photo: Rafinesquia californica 1.
- Photo: Rafinesquia californica.
- Photo: Ranunculus 1.
- Photo: Ranunculus 2.
- Photo: Ranunculus 3.
- Photo: Ranunculus aconitifolius 1.
- Photo: Ranunculus aconitifolius 2.
- Photo: Ranunculus aconitifolius 3.
- Photo: Ranunculus aconitifolius 4.
- Photo: Ranunculus aconitifolius 5.
- Photo: Ranunculus aconitifolius.
- Photo: Ranunculus acris 1.
- Photo: Ranunculus acris.
- Photo: Ranunculus amplexicaulis 1.
- Photo: Ranunculus amplexicaulis 2.
- Photo: Ranunculus amplexicaulis 3.
- Photo: Ranunculus amplexicaulis 4.
- Photo: Ranunculus amplexicaulis 5.
- Photo: Ranunculus amplexicaulis.
- Photo: Ranunculus auricomus 1.
- Photo: Ranunculus auricomus.
- Photo: Ranunculus ficaria 10.
- Photo: Ranunculus ficaria 2.
- Photo: Ranunculus ficaria 3.
- Photo: Ranunculus ficaria 4.
- Photo: Ranunculus ficaria 5.
- Photo: Ranunculus ficaria 6.
- Photo: Ranunculus ficaria 7.
- Photo: Ranunculus ficaria 8.
- Photo: Ranunculus ficaria 9.
- Photo: Ranunculus japonicus 1.
- Photo: Ranunculus japonicus.
- Photo: Ranunculus sceleratus 1.
- Photo: Ranunculus sceleratus.
- Photo: Ranunculus.
- Photo: Raphanus sativus 1.
- Photo: Raphanus sativus.
- Photo: Ratibida pinnata 2.
- Photo: Ratibida pinnata 3.
- Photo: Ratibida pinnata 4.
- Photo: Ratibida pinnata 5.
- Photo: Ratibida pinnata 6.
- Photo: Ratibida pinnata 7.
- Photo: Ratibida pinnata 8.
- Photo: Ratibida pinnata.
- Photo: Rauvolfia verticillata 1.
- Photo: Rauvolfia verticillata.
- Photo: Ravenala madagascariensis 1.
- Photo: Ravenala madagascariensis.
- Photo: Rebutia fiebrigii.
- Photo: Rehmannia elata 1.
- Photo: Rehmannia elata 2.
- Photo: Rehmannia elata.
- Photo: Reseda luteola 2.
- Photo: Reseda luteola 3.
- Photo: Reseda luteola 4.
- Photo: Reseda luteola 5.
- Photo: Reseda odorata 1.
- Photo: Reseda odorata 2.
- Photo: Reseda odorata 3.
- Photo: Reseda odorata 4.
- Photo: Reseda odorata 5.
- Photo: Reseda odorata.
- Photo: Rhamnus pumilus.
- Photo: Rhamnus ussuriensis 1.
- Photo: Rhamnus ussuriensis.
- Photo: Rheum alexandrae 1.
- Photo: Rheum alexandrae.
- Photo: Rheum australe.
- Photo: Rheum officinale 1.
- Photo: Rheum officinale 2.
- Photo: Rheum officinale.
- Photo: Rheum palmatum 1.
- Photo: Rheum palmatum 2.
- Photo: Rheum palmatum 3.
- Photo: Rheum palmatum 4.
- Photo: Rheum palmatum 5.
- Photo: Rheum palmatum.
- Photo: Rheum rhabarbarum 1.
- Photo: Rheum rhabarbarum 10.
- Photo: Rheum rhabarbarum 2.
- Photo: Rheum rhabarbarum 3.
- Photo: Rheum rhabarbarum 4.
- Photo: Rheum rhabarbarum 5.
- Photo: Rheum rhabarbarum 6.
- Photo: Rheum rhabarbarum 7.
- Photo: Rheum rhabarbarum 8.
- Photo: Rheum rhabarbarum 9.
- Photo: Rheum rhabarbarum.
- Photo: Rheum tanguticum 1.
- Photo: Rheum tanguticum 2.
- Photo: Rheum tanguticum 3.
- Photo: Rheum tanguticum 4.
- Photo: Rheum tanguticum.
- Photo: Rhinanthus minor 1.
- Photo: Rhinanthus minor 2.
- Photo: Rhinanthus minor 3.
- Photo: Rhinanthus minor.
- Photo: Rhinanthus serotinus 1.
- Photo: Rhinanthus serotinus 2.
- Photo: Rhinanthus serotinus 3.
- Photo: Rhinanthus serotinus 4.
- Photo: Rhinanthus serotinus 5.
- Photo: Rhinanthus serotinus.
- Photo: Rhodanthe chlorocephala 1.
- Photo: Rhodanthe chlorocephala.
- Photo: Rhodiola angusta 1.
- Photo: Rhodiola angusta.
- Photo: Rhodiola kirilowii 1.
- Photo: Rhodiola kirilowii 10.
- Photo: Rhodiola kirilowii 11.
- Photo: Rhodiola kirilowii 12.
- Photo: Rhodiola kirilowii 13.
- Photo: Rhodiola kirilowii 14.
- Photo: Rhodiola kirilowii 15.
- Photo: Rhodiola kirilowii 16.
- Photo: Rhodiola kirilowii 17.
- Photo: Rhodiola kirilowii 2.
- Photo: Rhodiola kirilowii 3.
- Photo: Rhodiola kirilowii 4.
- Photo: Rhodiola kirilowii 5.
- Photo: Rhodiola kirilowii 7.
- Photo: Rhodiola kirilowii 8.
- Photo: Rhodiola kirilowii 9.
- Photo: Rhodiola kirilowii.
- Photo: Rhodiola rosea 1.
- Photo: Rhodiola rosea 10.
- Photo: Rhodiola rosea 11.
- Photo: Rhodiola rosea 12.
- Photo: Rhodiola rosea 2.
- Photo: Rhodiola rosea 4.
- Photo: Rhodiola rosea 5.
- Photo: Rhodiola rosea 7.
- Photo: Rhodiola rosea 8.
- Photo: Rhodiola rosea 9.
- Photo: Rhodiola rosea.
- Photo: Rhodiola wallichiana.
- Photo: Rhodochiton atrosanguineum 1.
- Photo: Rhodochiton atrosanguineum 2.
- Photo: Rhodochiton atrosanguineum.
- Photo: Rhododendron 1.
- Photo: Rhododendron 2.
- Photo: Rhododendron 3.
- Photo: Rhododendron 4.
- Photo: Rhododendron 5.
- Photo: Rhododendron 6.
- Photo: Rhododendron 7.
- Photo: Rhododendron groenlandicum 1.
- Photo: Rhododendron groenlandicum 2.
- Photo: Rhododendron groenlandicum.
- Photo: Rhododendron macrophyllum 1.
- Photo: Rhododendron macrophyllum.
- Photo: Rhododendron reticulatum 1.
- Photo: Rhododendron reticulatum 2.
- Photo: Rhododendron reticulatum 3.
- Photo: Rhododendron reticulatum 4.
- Photo: Rhododendron reticulatum 5.
- Photo: Rhododendron reticulatum 6.
- Photo: Rhododendron reticulatum 7.
- Photo: Rhododendron reticulatum.
- Photo: Rhododendron tomentosum 1.
- Photo: Rhododendron tomentosum 2.
- Photo: Rhododendron tomentosum 3.
- Photo: Rhododendron tomentosum 4.
- Photo: Rhododendron tomentosum 5.
- Photo: Rhododendron tomentosum 6.
- Photo: Rhododendron tomentosum 7.
- Photo: Rhododendron tomentosum 8.
- Photo: Rhododendron tomentosum.
- Photo: Rhododendron tosaense 1.
- Photo: Rhododendron tosaense.
- Photo: Rhododendron tsusiophyllum 1.
- Photo: Rhododendron tsusiophyllum.
- Photo: Rhododendron.
- Photo: Rhodotypos scandens 1.
- Photo: Rhodotypos scandens 2.
- Photo: Rhodotypos scandens.
- Photo: Rhus 1.
- Photo: Rhus 2.
- Photo: Rhus microphylla 1.
- Photo: Rhus microphylla.
- Photo: Rhus ovata 1.
- Photo: Rhus ovata.
- Photo: Rhus trilobata 1.
- Photo: Rhus trilobata.
- Photo: Rhus typhina 1.
- Photo: Rhus typhina 2.
- Photo: Rhus typhina 3.
- Photo: Rhus typhina 4.
- Photo: Rhus typhina.
- Photo: Rhus.
- Photo: Ribes alpinum 1.
- Photo: Ribes alpinum 5.
- Photo: Ribes aureum 1.
- Photo: Ribes aureum 2.
- Photo: Ribes aureum 3.
- Photo: Ribes aureum 4.
- Photo: Ribes aureum 5.
- Photo: Ribes aureum 6.
- Photo: Ribes aureum.
- Photo: Ribes lacustre.
- Photo: Ribes nigrum 1.
- Photo: Ribes nigrum 2.
- Photo: Ribes nigrum 3.
- Photo: Ribes nigrum 4.
- Photo: Ribes nigrum.
- Photo: Ribes rubrum 1.
- Photo: Ribes rubrum 2.
- Photo: Ribes rubrum 3.
- Photo: Ribes rubrum 4.
- Photo: Ribes rubrum 5.
- Photo: Ribes rubrum 6.
- Photo: Ribes rubrum 7.
- Photo: Ribes rubrum 8.
- Photo: Ribes rubrum.
- Photo: Ribes sanguineum 1.
- Photo: Ribes sanguineum 2.
- Photo: Ribes sanguineum.
- Photo: Ribes uva crispa 1.
- Photo: Ribes uva crispa 2.
- Photo: Ribes uva crispa 3.
- Photo: Ribes uva crispa 4.
- Photo: Ribes uva crispa 5.
- Photo: Ribes uva crispa.
- Photo: Ricinus communis 1.
- Photo: Ricinus communis 10.
- Photo: Ricinus communis 11.
- Photo: Ricinus communis 2.
- Photo: Ricinus communis 3.
- Photo: Ricinus communis 4.
- Photo: Ricinus communis 5.
- Photo: Ricinus communis 6.
- Photo: Ricinus communis 7.
- Photo: Ricinus communis 8.
- Photo: Ricinus communis 9.
- Photo: Ricinus communis.
- Photo: Rindera lanata 1.
- Photo: Rindera lanata 2.
- Photo: Rindera lanata.
- Photo: Rivina humilis.
- Photo: Robinia neomexicana 1.
- Photo: Robinia neomexicana.
- Photo: Robinia pseudoacacia 1.
- Photo: Robinia pseudoacacia 2.
- Photo: Robinia pseudoacacia.
- Photo: Rodgersia aesculifolia 1.
- Photo: Rodgersia aesculifolia 2.
- Photo: Rodgersia aesculifolia 3.
- Photo: Rodgersia aesculifolia 4.
- Photo: Rodgersia aesculifolia.
- Photo: Rodgersia podophylla 1.
- Photo: Rodgersia podophylla 2.
- Photo: Rodgersia podophylla 3.
- Photo: Rodgersia podophylla 4.
- Photo: Rodgersia podophylla.
- Photo: Romneya coulteri.
- Photo: Rosa 10.
- Photo: Rosa 11.
- Photo: Rosa 12.
- Photo: Rosa 13.
- Photo: Rosa 14.
- Photo: Rosa 15.
- Photo: Rosa 16.
- Photo: Rosa 17.
- Photo: Rosa 18.
- Photo: Rosa 19.
- Photo: Rosa 2.
- Photo: Rosa 20.
- Photo: Rosa 21.
- Photo: Rosa 22.
- Photo: Rosa 3.
- Photo: Rosa 4.
- Photo: Rosa 5.
- Photo: Rosa 6.
- Photo: Rosa 7.
- Photo: Rosa 8.
- Photo: Rosa 9.
- Photo: Rosa acicularis 1.
- Photo: Rosa acicularis 2.
- Photo: Rosa acicularis 3.
- Photo: Rosa acicularis.
- Photo: Rosa amblyotis 1.
- Photo: Rosa amblyotis 2.
- Photo: Rosa amblyotis.
- Photo: Rosa blanda 1.
- Photo: Rosa blanda 2.
- Photo: Rosa blanda 3.
- Photo: Rosa blanda 4.
- Photo: Rosa blanda 5.
- Photo: Rosa blanda.
- Photo: Rosa canina 1.
- Photo: Rosa canina 2.
- Photo: Rosa canina.
- Photo: Rosa centifolia 1.
- Photo: Rosa centifolia 2.
- Photo: Rosa centifolia 3.
- Photo: Rosa centifolia.
- Photo: Rosa gallica 1.
- Photo: Rosa gallica 2.
- Photo: Rosa gallica.
- Photo: Rosa glauca 1.
- Photo: Rosa glauca 2.
- Photo: Rosa glauca 4.
- Photo: Rosa glauca 5.
- Photo: Rosa glauca 6.
- Photo: Rosa glauca.
- Photo: Rosa majalis 1.
- Photo: Rosa majalis 2.
- Photo: Rosa majalis 3.
- Photo: Rosa majalis.
- Photo: Rosa moyesii 1.
- Photo: Rosa moyesii.
- Photo: Rosa pimpinellifolia 1.
- Photo: Rosa pimpinellifolia 10.
- Photo: Rosa pimpinellifolia 11.
- Photo: Rosa pimpinellifolia 12.
- Photo: Rosa pimpinellifolia 13.
- Photo: Rosa pimpinellifolia 14.
- Photo: Rosa pimpinellifolia 15.
- Photo: Rosa pimpinellifolia 16.
- Photo: Rosa pimpinellifolia 17.
- Photo: Rosa pimpinellifolia 18.
- Photo: Rosa pimpinellifolia 19.
- Photo: Rosa pimpinellifolia 2.
- Photo: Rosa pimpinellifolia 3.
- Photo: Rosa pimpinellifolia 4.
- Photo: Rosa pimpinellifolia 5.
- Photo: Rosa pimpinellifolia 6.
- Photo: Rosa pimpinellifolia 7.
- Photo: Rosa pimpinellifolia 8.
- Photo: Rosa pimpinellifolia 9.
- Photo: Rosa pimpinellifolia hybr 1.
- Photo: Rosa pimpinellifolia hybr 2.
- Photo: Rosa pimpinellifolia hybr 3.
- Photo: Rosa pimpinellifolia hybr 4.
- Photo: Rosa pimpinellifolia hybr 5.
- Photo: Rosa pimpinellifolia hybr 6.
- Photo: Rosa pimpinellifolia hybr 7.
- Photo: Rosa pimpinellifolia hybr.
- Photo: Rosa pimpinellifolia.
- Photo: Rosa rugosa 10.
- Photo: Rosa rugosa 11.
- Photo: Rosa rugosa 12.
- Photo: Rosa rugosa 13.
- Photo: Rosa rugosa 14.
- Photo: Rosa rugosa 15.
- Photo: Rosa rugosa 16.
- Photo: Rosa rugosa 17.
- Photo: Rosa rugosa 18.
- Photo: Rosa rugosa 19.
- Photo: Rosa rugosa 2.
- Photo: Rosa rugosa 20.
- Photo: Rosa rugosa 21.
- Photo: Rosa rugosa 22.
- Photo: Rosa rugosa 23.
- Photo: Rosa rugosa 24.
- Photo: Rosa rugosa 3.
- Photo: Rosa rugosa 4.
- Photo: Rosa rugosa 5.
- Photo: Rosa rugosa 6.
- Photo: Rosa rugosa 7.
- Photo: Rosa rugosa 8.
- Photo: Rosa rugosa 9.
- Photo: Rosa rugosa hybr 1.
- Photo: Rosa rugosa hybr 2.
- Photo: Rosa rugosa hybr 3.
- Photo: Rosa rugosa hybr 4.
- Photo: Rosa rugosa hybr 5.
- Photo: Rosa rugosa hybr.
- Photo: Rosa spp 1.
- Photo: Rosa spp.
- Photo: Rosa x rugotida 1.
- Photo: Rosa x rugotida 2.
- Photo: Rosa x rugotida.
- Photo: Rosa.
- Photo: Roscoea auriculata.
- Photo: Rosmarinus officinalis 1.
- Photo: Rosmarinus officinalis 2.
- Photo: Rosmarinus officinalis 3.
- Photo: Rosmarinus officinalis 4.
- Photo: Rosmarinus officinalis 5.
- Photo: Rosmarinus officinalis 6.
- Photo: Rosmarinus officinalis.
- Photo: Rosmarinus x mendizabalii 1.
- Photo: Rosmarinus x mendizabalii.
- Photo: Rossioglossum grande 2.
- Photo: Rossioglossum grande.
- Photo: Rothmannia annae.
- Photo: Roystonea oleracea 1.
- Photo: Roystonea oleracea 2.
- Photo: Roystonea oleracea 3.
- Photo: Roystonea oleracea 4.
- Photo: Roystonea oleracea.
- Photo: Rubia tinctorum 1.
- Photo: Rubia tinctorum 10.
- Photo: Rubia tinctorum 11.
- Photo: Rubia tinctorum 12.
- Photo: Rubia tinctorum 13.
- Photo: Rubia tinctorum 14.
- Photo: Rubia tinctorum 2.
- Photo: Rubia tinctorum 3.
- Photo: Rubia tinctorum 4.
- Photo: Rubia tinctorum 5.
- Photo: Rubia tinctorum 6.
- Photo: Rubia tinctorum 7.
- Photo: Rubia tinctorum 8.
- Photo: Rubia tinctorum.
- Photo: Rubus 1.
- Photo: Rubus 2.
- Photo: Rubus 3.
- Photo: Rubus 4.
- Photo: Rubus 5.
- Photo: Rubus 6.
- Photo: Rubus 7.
- Photo: Rubus 8.
- Photo: Rubus 9.
- Photo: Rubus allegheniensis 1.
- Photo: Rubus allegheniensis 2.
- Photo: Rubus allegheniensis.
- Photo: Rubus arcticus 1.
- Photo: Rubus arcticus 2.
- Photo: Rubus arcticus 3.
- Photo: Rubus arcticus.
- Photo: Rubus caesius 1.
- Photo: Rubus caesius.
- Photo: Rubus chamaemorus 3.
- Photo: Rubus chamaemorus 4.
- Photo: Rubus chamaemorus 5.
- Photo: Rubus chamaemorus 6.
- Photo: Rubus chamaemorus.
- Photo: Rubus deliciosus 1.
- Photo: Rubus deliciosus.
- Photo: Rubus fruticosus.
- Photo: Rubus idaeus 1.
- Photo: Rubus idaeus 2.
- Photo: Rubus idaeus 3.
- Photo: Rubus idaeus 4.
- Photo: Rubus idaeus 5.
- Photo: Rubus idaeus.
- Photo: Rubus odoratus 1.
- Photo: Rubus odoratus 2.
- Photo: Rubus odoratus 3.
- Photo: Rubus odoratus 4.
- Photo: Rubus odoratus 5.
- Photo: Rubus odoratus 6.
- Photo: Rubus odoratus 7.
- Photo: Rubus odoratus.
- Photo: Rubus parvifolius 1.
- Photo: Rubus parvifolius 2.
- Photo: Rubus parvifolius 3.
- Photo: Rubus parvifolius 4.
- Photo: Rubus parvifolius 5.
- Photo: Rubus parvifolius 6.
- Photo: Rubus parvifolius.
- Photo: Rubus phoenicolasius 1.
- Photo: Rubus phoenicolasius.
- Photo: Rubus saxatilis 1.
- Photo: Rubus saxatilis 2.
- Photo: Rubus saxatilis 3.
- Photo: Rubus saxatilis 4.
- Photo: Rubus saxatilis 5.
- Photo: Rubus saxatilis.
- Photo: Rubus spectabilis 1.
- Photo: Rubus spectabilis.
- Photo: Rubus.
- Photo: Rudbeckia fulgida 1.
- Photo: Rudbeckia fulgida 2.
- Photo: Rudbeckia fulgida 3.
- Photo: Rudbeckia fulgida.
- Photo: Rudbeckia hirta 1.
- Photo: Rudbeckia hirta 2.
- Photo: Rudbeckia hirta 3.
- Photo: Rudbeckia hirta 4.
- Photo: Rudbeckia hirta 5.
- Photo: Rudbeckia hirta 6.
- Photo: Rudbeckia hirta 7.
- Photo: Rudbeckia hirta.
- Photo: Rudbeckia laciniata 1.
- Photo: Rudbeckia laciniata 2.
- Photo: Rudbeckia laciniata 3.
- Photo: Rudbeckia laciniata 4.
- Photo: Rudbeckia laciniata.
- Photo: Rudbeckia occidentalis 1.
- Photo: Rudbeckia occidentalis 2.
- Photo: Rudbeckia occidentalis.
- Photo: Rumex 1.
- Photo: Rumex 2.
- Photo: Rumex 4.
- Photo: Rumex 5.
- Photo: Rumex 6.
- Photo: Rumex acetosa 1.
- Photo: Rumex acetosa.
- Photo: Rumex acetosella 1.
- Photo: Rumex acetosella 2.
- Photo: Rumex acetosella 3.
- Photo: Rumex acetosella.
- Photo: Rumex alpinus 1.
- Photo: Rumex alpinus.
- Photo: Rumex crispus.
- Photo: Rumex hymenosepalus.
- Photo: Rumex japonicus 1.
- Photo: Rumex japonicus 2.
- Photo: Rumex japonicus 3.
- Photo: Rumex japonicus.
- Photo: Rumex longifolius 1.
- Photo: Rumex longifolius 2.
- Photo: Rumex longifolius 3.
- Photo: Rumex longifolius 4.
- Photo: Rumex longifolius.
- Photo: Rumex scutatus 1.
- Photo: Rumex scutatus 2.
- Photo: Rumex scutatus.
- Photo: Rumex.
- Photo: Ruscus aculeatus.
- Photo: Russelia equisetiformis 1.
- Photo: Russelia equisetiformis.
- Photo: Ruta graveolens 1.
- Photo: Ruta graveolens 2.
- Photo: Ruta graveolens 3.
- Photo: Ruta graveolens 4.
- Photo: Ruta graveolens 5.
- Photo: Ruta graveolens 6.
- Photo: Ruta graveolens 7.
- Photo: Ruta graveolens.
R
The Rs.