angula,
Rhaphiolepis japonica integerrima,
_ovata_
Rhaphithamnus cyanocarpus,
Rhododendron _aeruginosum_,
arborescens,
arboreum,
argenteum,
Aucklandii,
barbatum,
calendulaceum,
californicum,
campanulatum,
Campbelli,
campylocarpum,
catawbiense,
Rhododendron _Chamaecistus_,
chrysanthum,
ciliatum,
cinnabarinum,
Collettianum,
dahuricum,
eximium,
Falconeri,
ferrugineum,
flavuni,
Fortunei,
glaucum,
hirsutum,
Hodgsoni,
indicum,
lanatum,
ledifolium,
maximum,
molle,
niveum,
occidentale,
parvifolium,
ponticum,
ponticum azaleoides,
_ponticum deciduum_,
racemosum,
Rhodora,
Roylei,
Smirnowii,
Thompsoni,
Ungernii,
viscosum,
Wallichii,
Wilsoni,
Rhododendrons, hardy hybrid,
Rhodora canadensis,
Rhodothamnus Chamaecistus,
Rhodotypos Kerrioides,
Rhus caroliniana,
_coccinea_,
Cotinus,
_elegans_,
glabra,
_sanguinea_,
succedanea,
Toxicodendron,
typhina,
venenata,
_vernix_,
Ribes alpinum pumilum aureum,
aureum,
_Beatonii_,
cereum,
floridum,
Gordonianum,
_inebrians_,
_Loudonii_,
_missouriense_,
multiflorum,
_pennsylvanicum_,
sanguineum,
speciosum,
Robinia ambigua,
dubia,
_echinata_,
glutinosa,
_Halimodendron_,
hispida,
Pseud-Acacia,
viscosa,
Rock Abelia,
Rock Daphne,
Rock Rose, the,
Rosa alba,
_arvensis_,
_bengalensis_,
bracteata,
canina,
Rosa centifolia,
damascena,
_diversifolia_,
_Eglanteria_,
ferox,
gallica,
hemisphaerica,
indica,
indica minima,
indica semperflorens,
_Lawrenceana_,
lutea,
_minima_,
_pimpinellifolia_,
repens,
rugosa,
sempervirens,
_semperflorens minima_,
spinosissima,
sulphurea,
villosa,
Rose Acacia,
Rose Bay,
Rose of Sharon,
Rosmarinus officinalis,
Rosemary, common,
Rosemary, wild,
Rowan-tree,
Rubus arcticus,
australis,
biflorus,
deliciosus,
fruticosus,
laciniatus,
nutkanus,
odoratus,
rosaefolius,
spectabilis,
Ruscus aculeatus,
Hypophyllum,
_racemosus_,
St. Anthony's Nut,
St. Dabeoc's Heath,
St. Peter's Wort,
Sand Myrtle,
Sallow thorn,
Salt tree,
Sambucus californica,
glauca,
nigra,
racemosa,
rosaeflora,
Schizandra chinensis,
coccinea,
Schizophragma hydrangeoides,
Scorpion Senna,
Sea Buckthorn,
Sea Purslane,
Service tree, true,
Sheepberry,
Sheep Laurel,
Shepherdia argentea,
canaden