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Plant Index
Raphiolepis
Reevesia
Reevesia pubescens
Rehderodendron
Rehderodendron indochinense
Rehderodendron kwangtungense
Rehderodendron kweichowense
Rehderodendron macrocarpum
Rhamnus
Buckthorn
Rhamnus alaternus
'Argenteovariegata'
'Maculata'
var.
angustifolia
Rhamnus alnifolia
Rhamnus arguta
Rhamnus californica
Coffeeberry
var.
oleifolia
Rhamnus cathartica
Common buckthorn
Rhamnus costata
Rhamnus davurica
Rhamnus fallax
R alpina
Rhamnus frangula
Alder Buckthorn
'Asplenifolia'
f.
angustifolia
R latifolia
var.
latifolia
Rhamnus
×
hybrida
'Billardii'
Rhamnus imeretina
R libanotica
Rhamnus infectoria
Rhamnus japonica
Rhamnus lanceolata
Rhamnus pumila
Dwarf Buckthorn
Rhamnus purshiana
R caroliniana
Rhamnus rupestris
Rhamnus saxatilis
Rock Buckthorn
Rhamnus tinctoria
Dyer's Buckthorn
Rhamnus utilis
Rhaphiolepis
Rhaphiolepis
×
delacourii
Rhaphiolepis indica
Rhaphiolepis umbellata
Rhaphithamnus
Rhaphithamnus spinosus
Rhododendron
Menziesia multiflora
Rhododendron aberconwayi
Rhododendron acuminatum
Rhododendron adenogynum
R adenophorum
Rhododendron adenopodum
Rhododendron adenosum
Rhododendron aequabile
Rhododendron afghanicum
Rhododendron aganniphum
var.
aganniphum
var.
flavorufum
Rhododendron agastum
Rhododendron
×
agastum
Rhododendron alabamense
Rhododendron albertsenianum
Rhododendron albiflorum
Rhododendron albrechtii
Rhododendron album
Rhododendron alticolum
Rhododendron alutaceum
var.
alutaceum
var.
iodes
var.
russotinctum
Rhododendron amagianum
Rhododendron ambiguum
Rhododendron amesiae
Rhododendron anagalliflorum
Rhododendron annae
Rhododendron anthopogon
subsp.
anthopogon
subsp.
hypenanthum
Rhododendron anthopogonoides
Rhododendron anthosphaerum
Rhododendron anwheiense
Rhododendron aperantum
Rhododendron araiophyllum
Rhododendron arborescens
var.
richardsonii
Rhododendron arboreum
R delavayi
subsp.
albomentosum
subsp.
arboreum
subsp.
cinnamomeum
subsp.
delavayi
subsp.
nilagiricum
subsp.
zeylanicum
var.
peramoenum
var.
roseum
Rhododendron arfakianum
Rhododendron argipeplum
'Fleurie'
Rhododendron argyrophyllum
R hypoglaucum
subsp.
argyrophyllum
subsp.
hypoglaucum
subsp.
nankingense
subsp.
omeiense
Rhododendron arizelum
var.
rubicosum
Rhododendron armitii
Rhododendron atlanticum
Rhododendron atropurpureum
Rhododendron atrovirens
Rhododendron augustinii
'Electra'
subsp.
augustinii
subsp.
chasmanthum
subsp.
hardyi
subsp.
rubrum
Rhododendron aureum
var.
aureum
var.
hypopitys
Rhododendron auriculatum
Rhododendron aurigeranum
Rhododendron auritum
Rhododendron austrinum
Rhododendron baenitzianum
Rhododendron bagobonum
Rhododendron baileyi
Rhododendron bainbridgeanum
Rhododendron balangense
Rhododendron balfourianum
var.
aganniphoides
var.
balfourianum
Rhododendron barbatum
R argipeplum
R imberbe
R smithii
Rhododendron basilicum
Rhododendron batemanii
Rhododendron bathyphyllum
Rhododendron beanianum
var.
compactum
Rhododendron beesianum
Rhododendron beyerinckianum
Rhododendron bhutanense
Rhododendron blackii
Rhododendron boothii
R mishmiense
Rhododendron brachyanthum
R shweliense
subsp.
brachyanthum
subsp.
hypolepidotum
var.
hypolepidotum
Rhododendron brachycarpum
subsp.
brachycarpum
subsp.
fauriei
Rhododendron bracteatum
Rhododendron brevistylum
R pholidotum
Rhododendron brookeanum
subsp.
gracile
Rhododendron bryophilum
Rhododendron bureavii
Rhododendron bureavioides
Rhododendron burmanicum
R pachypodum
Rhododendron burttii
Rhododendron buxifolium
Rhododendron caesium
Rhododendron calendulaceum
R bakeri
Rhododendron caliginis
Rhododendron callimorphum
var.
callimorphum
var.
myiagrum
Rhododendron calophytum
var.
calophytum
var.
openshawianum
Rhododendron calostrotum
'Gigha'
subsp.
calostrotum
subsp.
keleticum
subsp.
riparioides
subsp.
riparium
var.
calciphilum
Rhododendron caloxanthum
R telopeum
Rhododendron calvescens
var.
calvescens
var.
duseimatum
Rhododendron camelliiflorum
Rhododendron campanulatum
'Knap Hill'
R wallichii
subsp.
aeruginosum
subsp.
campanulatum
var.
aeruginosum
Rhododendron campylocarpum
R panteumorphum
subsp.
caloxanthum
subsp.
campylocarpum
Rhododendron campylogynum
var.
celsum
var.
charopoeum
var.
cremastum
var.
myrtilloides
Rhododendron camtschaticum
subsp.
camtschaticum
subsp.
glandulosum
Rhododendron canadense
Rhodora
Rhododendron x candelabrum
Rhododendron canescens
Rhododendron capitatum
Rhododendron carneum
Rhododendron carolinianum
R chapmanii
var.
album
Rhododendron carrii
Rhododendron carringtoniae
Rhododendron catacosmum
Rhododendron catawbiense
Rhododendron caucasicum
R aureum
Rhododendron cephalanthum
subsp.
cephalanthum
subsp.
platyphyllum
var.
crebreflorum
Rhododendron cerasinum
Rhododendron chaetomallum
var.
chamaephytum
var.
glaucescens
var.
hemigymnum
var.
xanthanthum
Rhododendron chamaethomsonii
var.
chamaethauma
var.
chamaethomsonii
Rhododendron championiae
Rhododendron charitopes
R tsangpoense
subsp.
charitopes
subsp.
tsangpoense
var.
pruniflorum
Rhododendron chionanthum
Rhododendron chlorops
Rhododendron christi
Rhododendron christianae
Rhododendron chryseum
Rhododendron chrysodoron
Rhododendron ciliatum
Rhododendron ciliicalyx
R carneum
R dendricola
R scottianum
R supranubium
Rhododendron cinnabarinum
Blandfordiiflorum Group
subsp.
cinnabarinum
subsp.
tamaense
subsp.
xanthocodon
var.
aestivale
var.
pallidum
var.
purpurellum
var.
roylei
Rhododendron citriniflorum
var.
citriniflorum
var.
horaeum
Rhododendron clementinae
Rhododendron coelicum
R pocophorum
Rhododendron coeloneuron
Rhododendron collettianum
Rhododendron columbianum
Rhododendron commonae
Rhododendron complexum
Rhododendron concinnum
R amesiae
R polylepis
var.
benthamianum
var.
pseudoyanthinum
Rhododendron coriaceum
Rhododendron coryanum
Rhododendron cowanianum
Rhododendron coxianum
Rhododendron crassifolium
Rhododendron crassum
Rhododendron crinigerum
R bainbridgeanum
var.
crinigerum
var.
euadenium
Rhododendron cruttwellii
Rhododendron cuffeanum
Rhododendron culminicolum
Rhododendron cumberlandense
Rhododendron cuneatum
Rhododendron cyanocarpum
Rhododendron dalhousiae
var.
dalhousiae
var.
rhabdotum
Rhododendron dasypetalum
Rhododendron dauricum
'Hokkaido'
'Midwinter'
var.
sempervirens
Rhododendron davidii
Rhododendron davidsonianum
Rhododendron decandrum
Rhododendron
×
decipiens
Rhododendron decorum
subsp.
decorum
subsp.
diaprepes
Rhododendron degronianum
f.
angustifolium
subsp.
degronianum
subsp.
heptamerum
subsp.
yakushimanum
var.
heptamerum
var.
hondoense
var.
intermedium
var.
kyomaruense
Rhododendron dendricola
Rhododendron dendrocharis
Rhododendron denudatum
Rhododendron desquamatum
Rhododendron detonsum
Rhododendron dianthosmum
Rhododendron diaprepes
'Gargantua'
Rhododendron dichroanthum
subsp.
apodectum
subsp.
dichroanthum
subsp.
scyphocalyx
subsp.
septentrionale
Rhododendron dielsianum
Rhododendron dignabile
Rhododendron dilatatum
Rhododendron dimitrium
Rhododendron diphrocalyx
Rhododendron discolor
Rhododendron dryophyllum
R dumulosum
R phaeochrysum
Rhododendron eclecteum
var.
bellatulum
Rhododendron
×
edgarianum
Rhododendron edgeworthii
R seinghkuense
Rhododendron elegantulum
Rhododendron elliottii
Rhododendron ericoides
Rhododendron eriocarpum
Rhododendron eriogynum
R facetum
Rhododendron erosum
R exasperatum
Rhododendron
×
erythrocalyx
Rhododendron esetulosum
Rhododendron eudoxum
R fulvastrum
var.
brunneifolium
var.
eudoxum
var.
mesopolium
Rhododendron eurysiphon
Rhododendron exasperatum
Rhododendron excellens
Rhododendron faberi
Rhododendron facetum
Rhododendron falconeri
R eximium
subsp.
eximium
subsp.
falconeri
Rhododendron fallacinum
Rhododendron fargesii
R erubescens
Rhododendron farrerae
R mariesii
Rhododendron fastigiatum
R impeditum
R litangense
Rhododendron faucium
Rhododendron ferrugineum
f.
album
f.
atrococcineum
R ferrugineum × Rhirsutum
R kotschyi
' Variegatum'
Rhododendron fictolacteum
R rex
Rhododendron flammeum
Rhododendron flavidum
var.
psilostylum
Rhododendron fletcherianum
Rhododendron flinckii
Rhododendron floccigerum
var.
appropinquans
Rhododendron floribundum
Rhododendron flumineum
Rhododendron formosanum
Rhododendron formosum
R iteophyllum
var.
formosum
var.
inaequale
Rhododendron forrestii
R chamaethomsonii
subsp.
forrestii
subsp.
papillatum
var.
chamaethauma
var.
tumescens
Rhododendron fortunei
subsp.
discolor
subsp.
fortunei
Rhododendron fragariiflorum
Rhododendron fulgens
R succothii
Rhododendron fulvastrum
var.
albipetalum
Rhododendron fulvum
subsp.
fulvoides
subsp.
fulvum
'Windlesham White'
Rhododendron galactinum
Rhododendron gardenia
Rhododendron genestierianum
Rhododendron giulianettii
Rhododendron glanduliferum
Rhododendron glaucophyllum
subsp.
glaucophyllum
subsp.
tubiforme
var.
luteiflorum
Rhododendron glischroides
Rhododendron glischrum
R glischroides
R rude
R vesiculiferum
subsp.
glischrum
subsp.
rude
var.
adenosum
Rhododendron goodenoughii
Rhododendron goreri
Rhododendron gracilentum
Rhododendron grande
R sidereum
Rhododendron griersonianum
Rhododendron griffithianum
Rhododendron groenlandicum
Labrador Tea
'Compactum'
'Helma'
Rhododendron grothausii
Rhododendron gymnocarpum
Rhododendron habrotrichum
Rhododendron haematodes
R catacosmum
subsp.
chaetomallum
subsp.
haematodes
Rhododendron hanceanum
R afghanicum
Rhododendron haofui
Rhododendron headfortianum
Rhododendron hedyosmum
Rhododendron heftii
Rhododendron heliolepis
var.
brevistylum
var.
heliolepis
Rhododendron hellwigii
Rhododendron hemitrichotum
Rhododendron hemsleyanum
Rhododendron herzogii
Rhododendron hidakanum
Rhododendron
×
hillieri
Rhododendron himantodes
Rhododendron hippophaeoides
R fimbriatum
'Sunningdale'
var.
hippophaeoides
var.
occidentale
Rhododendron hirsutum
f.
albiflorum
f.
latifolium
Rhododendron hirtipes
Rhododendron hodgsonii
Rhododendron hongkongense
Rhododendron hooglandii
Rhododendron hookeri
Rhododendron horlickianum
Rhododendron houlstonii
Rhododendron huianum
Rhododendron hunnewellianum
subsp.
hunnewellianum
subsp.
rockii
Rhododendron hyacinthosmum
Rhododendron hylaeum
Rhododendron hyperythrum
Rhododendron hypoleucum
Rhododendron imberbe
Rhododendron impeditum
Rhododendron imperator
R patulum
Rhododendron inconspicuum
Rhododendron indicum
'Balsaminiflorum'
'Crispiflorum'
'Laciniatum'
R eriocarpum
R nakaharae
'Variegatum'
Rhododendron inopinum
Rhododendron insigne
Rhododendron intranervatum
Rhododendron intricatum
R peramabile
Rhododendron irroratum
subsp.
irroratum
subsp.
pogonostylum
Rhododendron japonicum
Rhododendron jasminiflorum
Rhododendron javanicum
Rhododendron johnstoneanum
R lyi
Rhododendron kaempferi
'Amoenum'
'Obtusum'
R kiusianum
'Ramentaceum' ('Obtusum Album')
var.
kaempferi
var.
macrogemma
Rhododendron kanehirae
Rhododendron kawakamii
Rhododendron keiskei
var.
keiskei
var.
ozawae
'Yaku Fairy'
Rhododendron keleticum
R nitens
R radicans
Rhododendron kendrickii
Rhododendron kesangiae
var.
album
var.
kesangiae
Rhododendron keysii
Rhododendron kiusianum
var.
kiusianum
var.
sataense
Rhododendron kiyosumense
Rhododendron kongboense
Rhododendron konori
Rhododendron kyawii
R agapetum
R parishii
Rhododendron lacteum
Rhododendron laetum
Rhododendron lagopus
var.
lagopus
Rhododendron lanatoides
Rhododendron lanatum
R tsariense
var.
luciferum
Rhododendron lanceolatum
Rhododendron lanigerum
Rhododendron lapponicum
Rhododendron latoucheae
Rhododendron laudandum
var.
laudandum
var.
temoense
Rhododendron lepidostylum
R caesium
R lowndesii
'Reuthe's Purple'
Rhododendron lepidotum
Rhododendron leptanthum
Rhododendron leptocarpum
Rhododendron leptothrium
Rhododendron leucaspis
R megeratum
Rhododendron leucogigas
Rhododendron levinei
Rhododendron lindaueanum
Rhododendron lindleyi
R dalhousiae
R rhabdotum
Rhododendron lochiae
Rhododendron longesquamatum
Rhododendron longiflorum
Rhododendron longipes
Rhododendron longistylum
Rhododendron loranthiflorum
Rhododendron lowii
Rhododendron lowndesii
Rhododendron luciferum
Rhododendron ludlowii
Rhododendron ludwigianum
Rhododendron lukiangense
Rhododendron luraluense
Rhododendron luteiflorum
Rhododendron lutescens
Rhododendron luteum
Rhododendron lyi
Rhododendron lysolepis
Rhododendron macabeanum
Rhododendron macgregoriae
Rhododendron macrophyllum
Rhododendron macrosepalum
'Linearifolium'
R ripense
Rhododendron maculiferum
Rhododendron maddenii
R brachysiphon
R manipurense
R polyandrum
subsp.
crassum
subsp.
maddenii
Rhododendron magnificum
Rhododendron maius
Rhododendron makinoi
Rhododendron malayanum
Rhododendron mallotum
Rhododendron mariesii
Rhododendron martinianum
R eurysiphon
Rhododendron maximum
f.
album
Rhododendron maybarae
Rhododendron meddianum
var.
atrokermesinum
var.
meddianum
Rhododendron megacalyx
Rhododendron megeratum
Rhododendron mekongense
var.
mekongense
var.
rubrolineatum
Rhododendron micranthum
Rhododendron microgynum
Rhododendron micromalayanum
Rhododendron microphyton
Rhododendron mimetes
var.
mimetes
var.
simulans
Rhododendron minus
var.
chapmanii
var.
minus
Rhododendron molle
subsp.
japonicum
subsp.
molle
Rhododendron mollicomum
Rhododendron mollyanum
R pudorosum
Rhododendron monosematum
Rhododendron montroseanum
Rhododendron morii
R anhweiense
Rhododendron moulmainense
Rhododendron moupinense
Rhododendron mucronatum
Rhododendron mucronulatum
'Cornell Pink'
Rhododendron multicolor
Rhododendron multinervium
Rhododendron myrtifolium
Rhododendron nakaharae
Rhododendron nakotiltum
Rhododendron neoglandulosum
Rhododendron neriiflorum
R phaedropum
subsp.
agetum
subsp.
neriiflorum
subsp.
phaedropum
Rhododendron nervulosum
Rhododendron nigroglandulosum
Rhododendron nipponicum
Rhododendron nitidulum
var.
nitidulum
Rhododendron nivale
subsp.
australe
subsp.
boreale
subsp.
nivale
Rhododendron niveum
'Crown Equerry'
'Nepal'
Rhododendron noriakianum
Rhododendron notiale
Rhododendron nudipes
var.
kirishimense
Rhododendron nuttallii
Rhododendron oblongifolium
Rhododendron obtusum
Rhododendron occidentale
Rhododendron ochraceum
Rhododendron oldhamii
Rhododendron orbiculare
R cardiobasis
Rhododendron orbiculatum
Rhododendron oreodoxa
var.
fargesii
var.
oreodoxa
var.
shensiense
Rhododendron oreotrephes
Rhododendron orthocladum
'Microleucum'
var.
longistylum
var.
microleucum
var.
orthocladum
Rhododendron ovatum
Rhododendron pachypodum
Rhododendron pachysanthum
Rhododendron pachytrichum
var.
monosematum
var.
pachytrichum
Rhododendron papillatum
Rhododendron paradoxum
R inopinum
Rhododendron parmulatum
Rhododendron parryae
Rhododendron parvifolium
f.
albiflorum
f.
alpinum
Rhododendron pauciflorum
Rhododendron pemakoense
R uniflorum
Rhododendron pendulum
Rhododendron pentaphyllum
Rhododendron perakense
Rhododendron peregrinum
Rhododendron periclymenoides
Rhododendron phaeochitum
Rhododendron phaeochrysum
R alutaceum
R traillianum
var.
agglutinatum
var.
alutaceum
var.
dictyotum
var.
iodes
var.
levistratum
var.
phaeochrysum
var.
russotinctum
Rhododendron piercei
Rhododendron pingianum
Rhododendron
×
planecostatum
Rhododendron planetum
Rhododendron pleianthum
Rhododendron pleistanthum
Rhododendron pocophorum
var.
hemidartum
var.
pocophorum
Rhododendron poluninii
Rhododendron polyanthemum
Rhododendron polycladum
Rhododendron polylepis
Rhododendron ponticum
'Cheiranthifolium'
f.
album
'Lancifolium'
subsp.
baeticum
'Variegatum'
Rhododendron praestans
R coryphaeum
R. semnoides
Rhododendron praeteritum
Rhododendron praetervisum
Rhododendron praevernum
Rhododendron prattii
Rhododendron preptum
Rhododendron primuliflorum
var.
cephalanthoides
Rhododendron principis
Rhododendron prinophyllum
Rhododendron pronum
Rhododendron proteoides
Rhododendron protistum
R magnificum
var.
giganteum
var.
protistum
Rhododendron pruniflorum
Rhododendron prunifolium
Rhododendron przewalskii
subsp.
dabanshanense
subsp.
przewalskii
Rhododendron pseudochrysanthum
var.
nankotaisanense
var.
pseudochrysanthum
Rhododendron pubescens
Rhododendron pudorosum
Rhododendron pulchrum
Rhododendron pumilum
R ludlowii
Rhododendron purdomii
Rhododendron purpureiflorum
Rhododendron quadrasianum
Rhododendron quinquefolium
Rhododendron racemosum
'Glendoick'
R × pallescens
'Rock Rose'
Rhododendron ramsdenianum
Rhododendron rarilepidotum
Rhododendron rarum
Rhododendron recurvoides
Rhododendron reticulatum
R dilatatum
Rhododendron retivenium
Rhododendron retusum
Rhododendron rex
subsp.
fictolacteum
subsp.
rex
Rhododendron rhodoleucum
Rhododendron rigidum
Rhododendron ripense
Rhododendron ririei
Rhododendron robinsonii
Rhododendron roseatum
Rhododendron rothschildii
Rhododendron roxieanum
R proteoides
R recurvoides
var.
cucullatum
var.
oreonastes
var.
parvum
var.
roxieanum
Rhododendron rubiginosum
Rhododendron rubineiflorum
Rhododendron rubropilosum
var.
breviperulatum
var.
rubropilosum
Rhododendron rufum
Rhododendron rugosum
Rhododendron rupicola
R achroanthum
var.
chryseum
var.
muliense
var.
rupicola
Rhododendron russatum
Rhododendron saisiuense
Rhododendron saluenense
R chameunum
R prostratum
subsp.
chameunum
subsp.
saluenense
Rhododendron sanctum
Rhododendron sanguineum
subsp.
didymum
subsp.
sanguineum
var.
cloiophorum
var.
didymoides
var.
haemaleum
Rhododendron santapaui
Rhododendron sargentianum
'Whitebait'
Rhododendron saxicolum
Rhododendron saxifragoides
Rhododendron sayeri
Rhododendron scabridibracteum
Rhododendron scabrifolium
var.
scabrifolium
var.
spiciferum
Rhododendron scabrum
subsp.
amanoi
subsp.
scabrum
Rhododendron schlippenbachii
Rhododendron schoddei
Rhododendron scintillans
Rhododendron scopulorum
Rhododendron searleanum
Rhododendron searsiae
Rhododendron seinghkuense
Rhododendron selense
R dasycladum
R setiferum
subsp.
dasycladum
subsp.
jucundum
subsp.
selense
subsp.
setiferum
var.
duseimatum
var.
pagophilum
var.
probum
Rhododendron semibarbatum
Rhododendron semnoides
Rhododendron serotinum
Rhododendron serpyllifolium
Rhododendron sessilifolium
Rhododendron setosum
Rhododendron
×
sheilae
Rhododendron shepherdii
Rhododendron sherriffii
Rhododendron shweliense
Rhododendron sidereum
Rhododendron siderophyllum
Rhododendron sikangense
var.
exquisitum
var.
sikangense
Rhododendron simiarum
Rhododendron simsii
var.
mesembrinum
var.
simsii
Rhododendron sinofalconeri
Rhododendron sinogrande
var.
boreale
Rhododendron smirnowii
Rhododendron
×
sochadzeae
Rhododendron solitarium
Rhododendron sororium
Rhododendron souliei
R puralbum
Rhododendron sperabile
R sperabilioides
var.
sperabile
var.
weihsiense
Rhododendron sperabiloides
Rhododendron sphaeroblastum
Rhododendron spiciferum
Rhododendron spilotum
Rhododendron spinuliferum
Rhododendron stamineum
Rhododendron stapfianum
Rhododendron stenopetalum
Rhododendron stenophyllum
Rhododendron stevensianum
Rhododendron stewartianum
R eclecteum
var.
bellatulum
var.
brachyandrum
Rhododendron strigillosum
Rhododendron suaveolens
Rhododendron subansiriense
Rhododendron subsessile
Rhododendron succothii
Rhododendron sulfureum
Rhododendron sumatranum
Rhododendron superbum
Rhododendron sutchuenense
Rhododendron taggianum
Rhododendron taliense
Rhododendron tanastylum
R kendrickii
var.
pennivenium
var.
tanastylum
Rhododendron tapetiforme
Rhododendron tashiroi
Rhododendron tatsienense
Rhododendron telmateium
R diacritum
R drumonium
Rhododendron temenium
var.
dealbatum
var.
gilvum
var.
temenium
Rhododendron tephropeplum
Rhododendron thayerianum
Rhododendron thomsonii
R lopsangianum
R viscidifolium
subsp.
lopsangianum
subsp.
thomsonii
var.
candelabrum
var.
pallidum
Rhododendron thymifolium
Rhododendron tolmachevii
Rhododendron tomentosum
subsp.
subarcticum
subsp.
tomentosum
Rhododendron tosaense
Rhododendron traillianum
var.
dictyotum
var.
traillianum
Rhododendron trichanthum
Rhododendron trichocladum
R melinanthum
var.
longipilosum
var.
trichocladum
Rhododendron trichostomum
Rhododendron triflorum
R bauhiniiflorum
var.
bauhiniiflorum
var.
mahogani
var.
triflorum
Rhododendron tsariense
var.
trimoense
var.
tsariense
Rhododendron tschonoskii
Rhododendron tschonoskyi
var.
trinerve
var.
tschonoskyi
Rhododendron tsusiophyllum
Rhododendron tuba
Rhododendron ungernii
Rhododendron uniflorum
var.
imperator
var.
uniflorum
Rhododendron uvariifolium
var.
griseum
var.
uvariifolium
Rhododendron vaccinioides
Rhododendron valentinianum
R fletcherianum
Rhododendron vaseyi
Rhododendron veitchianum
R cubittii
R inaequale
R taronense
Rhododendron venator
Rhododendron vernicosum
Rhododendron verruculosum
Rhododendron versteegii
Rhododendron vesiculiferum
Rhododendron vialii
Rhododendron vilmorinianum
Rhododendron virgatum
subsp.
oleifolium
subsp.
virgatum
Rhododendron viridescens
Rhododendron viscidifolium
Rhododendron viscosum
R serrulatum
var.
glaucum
Rhododendron vitis-idaea
Rhododendron wadanum
Rhododendron wallichii
Rhododendron walongense
Rhododendron wardii
R litiense
var.
puralbum
var.
wardii
Rhododendron wasonii
var.
rhododactylum
var.
wasonii
var.
wenchuanense
Rhododendron watsonii
R peregrinum
Rhododendron websterianum
Rhododendron weyrichii
R amagianum
R sanctum
Rhododendron wightii
Rhododendron williamsianum
Rhododendron leishanicum
Rhododendron williamsii
Rhododendron wilsoniae
Rhododendron wiltonii
Rhododendron womersleyi
Rhododendron wongii
Rhododendron wrightianum
Rhododendron xanthocodon
R concatenans
Rhododendron xanthostephanum
R auritum
Rhododendron yakushimanum
Rhododendron yedoense
var.
poukhanense
var.
yedoense
Rhododendron yelliotii
Rhododendron yongii
Rhododendron yungningense
Rhododendron yunnanense
R hormophorum
R rigidum
Rhododendron zaleucum
var.
flaviflorum
var.
zaleucum
Rhododendron zeylanicum
R kingianum
R nilagiricum
Rhododendron zoelleri
Rhododendron: The Hybrids / Additional Notes
Rhododendron: The Hybrids / Azalea Hybrids - Deciduous
Rhododendron: The Hybrids / Azalea Hybrids - Evergreen
Rhododendron: The Hybrids / Azaleodendrons
Rhododendron: The Hybrids / Introduction
Rhododendron: The Hybrids / Rhododendron Hybrids
Rhododendron: The Species / Classification
Rhodothamnus
Rhodothamnus chamaecistus
Rhodotypos
Rhodotypos scandens
Rhoiptelea
Horsetail Tree
Rhoiptelea chiliantha
Horsetail Tree, ma wei shu
Rhus
Sumacs
Rhus aromatica
R trilobata
Rhus chinensis
Rhus copallina
Dwarf Sumach
Rhus glabra
'Laciniata'
P × pulvinata
Rhus lancea
Willow-leaved Sumac, Karee
Rhus michauxii
Rhus potaninii
R punjabensis
Rhus radicans
Poison Ivy
R diversiloba
R orientale
Rtoxicodendron L Poison Oak
var.
rydbergii
Rhus succedanea
Wax Tree
Rhus trichocarpa
Rhus typhina
Stag's-horn Sumach
'Bailtiger'
PBR
'Dissecta' ('Laciniata')
f.
laciniata
Rhus verniciflua
Varnish Tree
R sylvestris
Rhus vernix
Poison Sumach
Rhus wallichii
Himalayan Sumac
Ribes
Currants and Gooseberries
Ribes alpinum
Mountain Currant
'Aureum' ('Osborn's Dwarf Golden')
'Laciniatum'
'Pumilum'
'Pumilum Aureum'
Ribes ambiguum
Ribes americanum
American black currant
Ribes
×
beatonii
Ribes bracteosum
Californian Black Currant
Ribes cereum
R inebrians
Ribes ciliatum
Ribes curvatum
Ribes diacanthum
Ribes fasciculatum
var.
chinense
Ribes gayanum
Ribes glandulosum
R coloradensis
R laxiflorum
Ribes henryi
Ribes lacustre
R montigenum
Ribes laurifolium
Ribes leptanthum
R quercetorum
Ribes lobbii
Ribes longeracemosum
Ribes maximowiczii
var.
floribundum
Ribes menziesii
Ribes mogollonicum
Ribes nigrum
Black Currant
'Dissectum'
'Laciniatum'
R × culverwellii
'Reticulatum Aureum'
Ribes niveum
R × robustum
Ribes odoratum
Buffalo Currant
'Aurantiacum Minus'
f.
xanthocarpum
R aureum
Golden Currant
Ribes orientale
Ribes pinetorum
Ribes roezlii
var.
cruentum
Ribes rubrum
Red Currant
R multiflorum
R petraeum
R spicatum
R triste
Ribes sanguineum
Flowering Currant
'Albescens'
'Albidum'
'Atrorubens'
'Brocklebankii'
'Carneum Grandiflorum'
'Flore Pleno'
'King Edward VII'
'Pulborough Scarlet'
R malvaceum
'Splendens'
var.
glutinosum
Ribes speciosum
Ribes tenue
Ribes uva-crispa
Common Gooseberry
R cynosbati
Dogberry
R divaricatum
R oxyacanthoides
R rotundifolium
Ribes valdivianum
Ribes viburnifolium
Richea
Richea scoparia
R dracophylla
Robinia
Robinia × ambigua
'Bella-rosea'
'Decaisneana'
Robinia boyntonii
Boynton Acacia
Robinia elliottii
Robinia hartwigii
Robinia hispida
Rose Acacia
'Macrophylla'
'Monument'
var.
fertilis
Robinia kelseyi
R × slavinii
Robinia luxurians
R × holdtii
Robinia pseudacacia
Locust, False Acacia
'Appalachia'
'Aurea'
'Bessoniana'
'Coluteoides'
'Decaisneana'
'Frisia'
'Pyramidalis' ('Fastigiata')
'Rehderi'
'Rozynskiana'
'Semperflorens'
'Tortuosa'
'Umbraculifera' ('Inermis') Parasol or Mop-head Acacia
'Unifoliola' ('Monophylla')
Robinia viscosa
Clammy Locust
Romneya
Romneya coulteri
California Tree Poppy
R coulteri
R trichocalyx
Rosa
Rosa acicularis
var.
bourgeauiana
var.
nipponensis
Rosa
×
alba
White Rose
R canina aggregate × R. gallica
R incarnata
Rosa albertii
Rosa anemoniflora
Rosa arkansana
var.
suffulta
Rosa arvensis
R 'Capreolata' Ayrshire Rose
R × polliniana
R 'Ruga'
Rosa banksiae
Banksian Rose
'Alba Plena' ('Banksiae')
'Lutea'
'Lutescens'
R cymosa
var.
normalis
Rosa beggeriana
Rosa biebersteinii
Rosa blanda
R × michiganensis
R woodsii
Rosa bracteata
Macartney Rose
R clinophylla
R lyellii
Rosa brunonii
Himalayan Musk Rose
R moschata
R 'Pissardii'
R ruscinonensis
var.
nastarana
Rosa californica
'Plena'
Rosa canina
Common Brier, Dog Rose
R afzeliana
R coriifolia
R corymbifera
R obtusifolia
R stylosa
Rosa carolina
'Alba'
'Nuttalliana'
'Plena'
Rosa centifolia
Holland or Provence Rose
'Alba'
'Bullata' Rose Feuilles de Laitue
'Cristata' Crested Moss, Chapeau de Napoléon
f.
albo-muscosa
'Muscosa' Common Moss Rose
R parvifolia
var.
pomponia
Rosa cerasocarpa
R henryi
Rosa chinensis
'Fortune's Double Yellow' ('Beauty of Glazenwood', 'Gold of Ophir')
'Minima' Miss Lawrance's Rose
'Mutabilis'
'Ochroleuca' Parks' Yellow China
'Pallida' Pink or Blush China
'Persicifolia' ('Salicifolia')
'Pumila' Bengale Pompone
R × odorata
'Rouletii'
'Semperflorens' Slater's Crimson China
'Sulphurea'
'Viridiflora'
Rosa corymbulosa
Rosa damascena
Damask Rose
f.
versicolor
R 'Portlandica' Portland Rose, Scarlet Four Seasons
'Trigintipetala' Kazanlik Rose
var.
semperflorens
Four Seasons Rose, Monthly Rose, Autumn Damask
Rosa davidii
'Acicularis'
R banksiopsis
R murieliae
var.
elongata
Rosa
'Dupontii'
R 'Freundiana'
Rosa ecae
R kokanica
R primula
Rosa eglanteria
Sweet Brier, Eglantine
R micrantha
Rosa elegantula
'Persetosa' Farrer's Threepenny-bit Rose
Rosa elymaitica
Rosa fedtschenkoana
Rosa filipes
Rosa foetida
'Bicolor' Austrian Copper Brier
'Persiana' Persian Double Yellow
Rosa foliolosa
Rosa
×
fortuniana
Rosa
×
francofurtana
Rosa gallica
Red Rose
var.
aegyptiaca
var.
holosericea
Velvet Roses
var.
officinalis
Apothecaries' Rose, Officinal Rose
'Versicolor'
Rosa gigantea
Rosa glauca
R glauca ×
Rosa glutinosa
Rosa gymnocarpa
Rosa
×
harisonii
R 'Lutea Maxima'
Rosa helenae
Rosa hemisphaerica
Rosa
×
hibernica
Rosa hugonis
Rosa
×
involuta
R × sabinii
Rosa jundzillii
Rosa laevigata
Cherokee Rose
'Cooperi' Cooper's Burma Rose
Rosa longicuspis
R lucens
R sinowilsonii
Rosa 'Macrantha'
R macrantha
Rosa macrophylla
'Korolkowii'
'Master Hugh'
R 'Rubricaulis'
R saturata
Rosa majalis
Rosa maximowicziana
Rosa moyesii
f.
rosea
'Fargesii'
'Geranium'
R sweginzowii
R wardii
'Sealing Wax'
Rosa mulliganii
Rosa multibracteata
R forrestiana
Rosa multiflora
'Carnea'
'Grevillei' ('Platyphylla') Seven Sisters Rose
R gentiliana Lévl
R multiflora × Hybrid Teas, Hybrid Perpetuals, Noisettes, etc
R multiflora × R. gallica (or hybrid of R. gallica)
R multiflora × R moschata/brunonii
var.
calva
var.
cathayensis
'Wilsonii'
Rosa nitida
Rosa nutkana
'Plena'
var.
hispida
Rosa palustris
Rosa pendulina
'Malyi'
'Nana'
R × inermis
R oxyodon
R × spinulifolia
Rosa persica
R × hardii
Rosa pimpinellifolia
Burnet Rose
f.
luteola
f.
megalacantha
'Grandiflora' ("Altaica")
'Hispida'
var.
altaica
var.
lutea
var.
lutea plena
var.
myriacantha
Rosa pisocarpa
Rosa
×
polliniana
Rosa prattii
Rosa pulverulenta
Rosa
×
reclinata
Rosa
×
reversa
Rosa × richardii
Rosa roxburghii
Burr Rose
'Roxburghii' ('Plena')
Rosa rubiginosa
Rosa rubus
Rosa rugosa
'Alba'
R 'Calocarpa'
R 'Hollandica'
R × iwara
R × jacksonii
R kordesii
R × micrugosa
R × paulii
var.
ventenatiana
Rosa sambucina
Rosa sempervirens
R phoenicea
Rosa sericea
f.
pteracantha
var.
hookeri
var.
omeiensis
Rosa setigera
Prairie Rose
Rosa setipoda
R caudata
R hemsleyana
Rosa sicula
Rosa soulieana
Rosa stellata
R minutifolia
var.
mirifica
Rosa tomentosa
R sherardii
R tomentosa × R. gallica
Rosa villosa
R mollis
R 'Wolley-Dod'
Rosa virginiana
R 'Mariae-graebneriae'
R rapa
Rosa
'Watsoniana'
Rosa webbiana
R bella
R sertata
var.
microphylla
Rosa wichuraiana
R × barbieriana
R × jacksonii
R luciae
Rosa willmottiae
Rosa xanthina
f.
spontanea
var.
ecae
var.
kokanica
Rosa: Roses in the Garden
Rosmarinus
Rosemary
Rosmarinus officinalis
Rosemary
'Benenden Blue'
'Blue Spire'
'Majorca Pink'
'Miss Jessup's Upright'
'Prostratus'
'Severn Sea'
'Tuscan Blue'
Rubus
Rubus adenophorus
Rubus amabilis
Rubus biflorus
var.
quinqueflorus
Rubus caesius
Dewberry
Rubus calycinoides
Rubus chroosepalus
Rubus cissoides
Bush Lawyer
R squarrosus
Rubus cockburnianus
'Goldenvale'
Rubus corchorifolius
Rubus coreanus
Rubus crataegifolius
Rubus deliciosus
R trilobus
Rubus flagelliflorus
Rubus flosculosus
Rubus henryi
var.
bambusarum
Rubus hispidus
Rubus hupehensis
Rubus ichangensis
Rubus idaeus
R loganobaccus
Loganberry
var.
anomalus
var.
strigosus
American Raspberry
Rubus illecebrosus
Rubus irenaeus
Rubus koehneanus
Rubus kuntzeanus
Rubus laciniatus
'Elegans'
Rubus lambertianus
var.
glaber
Rubus lasiostylus
Rubus lineatus
R splendidissimus
Rubus malifolius
Rubus mesogaeus
Rubus nepalensis
R fockeanus
Rubus
×
nobilis
Rubus occidentalis
Black Raspberry
R leucodermis
R × neglectus
Rubus odoratus
R × fraseri
Rubus palmatus
Rubus parkeri
Rubus parviflorus
Thimbleberry
Rubus parvifolius
Rubus parvus
Rubus pedunculosus
Rubus phoenicolasius
Wineberry
Rubus playfairianus
Rubus setchuenensis
Rubus spectabilis
Salmonberry
'Olympic Double'
Rubus subornatus
Rubus thibetanus
Rubus trianthus
Rubus tricolor
Rubus trifidus
Rubus ulmifolius
'Bellidiflorus'
f.
inermis
R 'Double White'
'Variegatus'
Ruscus
Ruscus aculeatus
Butcher's Broom
R hyrcanus
var.
angustifolius
var.
platyphyllus
Ruscus hypoglossum
R colchicus
R microglossus
Ruscus hypophyllum
Ruta
Rue
Ruta graveolens
Rue
'Jackman's Blue'
'Variegata'