Plants with Common Names beginning with the letter "R"

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• Rock Ragwort [English]: Senecio rupestris
• Rock Red Currant [English]: Ribes petraeum
• Rock Rose [English]: Helianthemum nummularium 'Ben Nevis'
• Rock Rose [English]: Helianthemum nummularium 'Dazzler'
• Rock Rose [English]: Cistus incanus
• Rock Rose [English]: Halimium atriplicifolium
• Rock Rose [English]: Pavonia lasiopetala
• Rock Rose [English]: Cistus laurifolius
• Rock Rose [English]: Helianthemum nummularium
• Rock Rose [English]: Helianthemum nummularium 'Wisley Pink'
• Rock Rose [English]: Helianthemum nummularium 'Wisley Primrose'
• Rock Rose [English]: Helianthemum nummularium 'Raspberry Ripple'
• Rock Rose [English]: Helianthemum nummularium 'Boule de Feu'
• Rock Rose [English]: Helianthemum nummularium 'Peach'
• Rock Rose [English]: Helianthemum 'Ben Ledi'
• Rock Rose [English]: Cistus 'Silver Pink'
• Rock Rose [English]: Cistus 'Sunset'
• Rock Rose [English]: Helianthemum nummularium 'Cerise Queen'
• Rock Rose [English]: Helianthemum 'Highdown Apricot'
• Rock Rose [English]: Helianthemum nummularium 'Annabel'
• Rock Rose [English]: Helianthemum 'Apricot'
• Rock Rose [English]: Helianthemum nummularium 'Belgravia Rose'
• Rock Rose [English]: Helianthemum 'The Bride'
• Rock Rose [English]: Helianthemum nummularium 'Mesa Wine'
• Rock Rose [English]: Cistus x hybridus
• Rock Rose [English]: Helianthemum x nummularium 'Henfield Brilliant'
• Rock Rose [English]: Cistus 'Grayswood Pink'
• Rock Rose [English]: Helianthemum nummularium 'Ben More'
• Rock Rose [English]: Helianthemum nummularium 'Burgundy Dazzler'
• Rock Rose [English]: Helianthemum nummularium 'Rose Glory'
• Rock Rose [English]: Helianthemum nummularium 'Fire Dragon'
• Rock Rose [English]: Cistus x dansereaui 'Jenkyn Place'
• Rock Rose [English]: Helianthemum 'Rhodanthe Carneum'
• Rock Rose [English]: Helianthemum nummularium 'Golden Nugget'
• Rock Rose [English]: Helianthemum nummularium mutabile
• Rock Rose Rhododendron [English]: Rhododendron racemosum 'Rock Rose'
• Rock Rosemallow [English]: Pavonia lasiopetala
• Rock Rosemary [English]: Merremia quinquefolia
• Rock Sage [English]: Salvia pinguifolia
• Rock Samphire [English]: Crithmum maritimum
• Rock Sandwort [English]: Minuartia stricta
• Rock Sandwort [English]: Minuartia michauxii
• Rock Saxifrage [English]: Saxifraga adscendens oregonensis
• Rock Scorpion-Weed [English]: Phacelia rupestris
• Rock Scorpionweed [English]: Phacelia rupestris
• Rock Scurf-Pea [English]: Pediomelum reverchonii
• Rock Scurfpea [English]: Pediomelum reverchonii
• Rock Sedge [English]: Carex rupestris altimontana
• Rock Sedge [English]: Carex petricosa
• Rock Sedge [English]: Carex saxatilis
• Rock Soapwort [English]: Saponaria ocymoides
• Rock Soapwort [English]: Saponaria ocymoides 'Rosea'
• Rock Soapwort [English]: Saponaria ocymoides 'Rubra Compacta'
• Rock Soapwort [English]: Saponaria ocymoides 'Splendens'
• Rock Speedwell [English]: Veronica arvensis
• Rock Speedwell [English]: Veronica fruticans
• Rock Spike-Moss [English]: Selaginella rupestris
• Rock Spikemoss [English]: Selaginella rupestris
• Rock Spiraea [English]: Holodiscus dumosus
• Rock Spiraea [English]: Petrophytum caespitosum
• Rock Springparsley [English]: Pteryxia petraea
• Rock Star Tall Bearded Iris [English]: Iris 'Rock Star'
• Rock Star Tomato [English]: Lycopersicon lycopersicum 'Rock Star'
• Rock Stingbush [English]: Eucnide rupestris
• Rock Stitchwort [English]: Minuartia dawsonensis
• Rock Sword Fern [English]: Polystichum scopulinum
• Rock Tansy [English]: Sphaeromeria capitata
• Rock Thyme [English]: Acinos alpina
• Rock Tickseed [English]: Coreopsis wrightii
• Rock Trumpet [English]: Macrosiphonia brachysiphon
• Rock Violet [English]: Viola lithion
• Rock Violet [English]: Viola flettii
• Rock Wattle [English]: Acacia rupicola
• Rock Wavewing [English]: Pteryxia petraea
• Rock Waxflower [English]: Philotheca trachyphylla
• Rock Whitebeam [English]: Sorbus aria
• Rock Whitefeather [English]: Ivesia arizonica
• Rock Whitefeather [English]: Ivesia arizonica var. saxosa
• Rock Whitefeather [English]: Ivesia saxosa
• Rock Whitlow-Grass [English]: Draba petrophila
• Rock Whitlow-Grass [English]: Draba arabisans
• Rock Whitlow-grass [English]: Draba glabella var. glabella Pursh
• Rock Wild Buckwheat [English]: Eriogonum sphaerocephalum
• Rock Wild Buckwheat [English]: Eriogonum sphaerocephalum var. sphaerocephalum
• Rock Willow [English]: Salix vestita
• Rock Wormwood [English]: Artemisia rupestris
• Rock Yucca [English]: Yucca pallida
• Rock's Broomspurge [English]: Chamaesyce rockii
• Rock's Cyrtandra [English]: Cyrtandra rockii
• Rock's Cyrtandra [English]: Cyrtandra x rockii
• Rock's Lobelia [English]: Lobelia dunbariae
• Rock's Lobelia [English]: Lobelia dunbariae dunbariae
• Rock's Nehe [English]: Lindheimera texana
• Rock's Peperomia [English]: Peperomia rockii
• Rock's Phyllostegia [English]: Phyllostegia rockii
• Rock-Breaker Fig [English]: Ficus ingens
• Rock-Cedar [English]: Juniperus ashei
• Rock-cress [English]: Phlebolobium maclovianum
• Rock-Fringe Willowherb [English]: Epilobium obcordatum
• Rock-Harlequin [English]: Corydalis sempervirens
• Rock-Harlequin [English]: Fumaria sempervirens
• Rock-Jasmine Monkey-Flower [English]: Mimulus androsaceus
• Rock-Jasmine Wild Buckwheat [English]: Eriogonum androsaceum
• Rock-Lily [English]: Arthropodium cirrhatum
• Rock-Loving Aletes [English]: Neoparrya lithophila
• Rock-Loving Point-Vetch [English]: Oxytropis oreophila
• Rock-Loving Spike-Moss [English]: Selaginella rupincola
• Rock-Mustard [English]: Dryopetalon runcinatum
• Rock-Parsley [English]: Cymopterus terebinthinus var. terebinthina
• Rock-Rose [English]: Helianthemum corymbosum
• Rock-Spiraea [English]: Holodiscus dumosus
• Rock-Spray [English]: Cotoneaster horizontalis
• Rock-Spray [English]: Cotoneaster horizontalis var. perpusillus
• Rock-Star [English]: Lithophragma glabrum
• Rock-Whitefeather [English]: Ivesia arizonica
• Rockam [Dutch]: Flacourtia rukam
• Rockbank Midsorus Fern [English]: Blechnum lineatum
• Rockcastle Aster [English]: Eurybia saxicastellii
• Rockcliff Isodendrion [English]: Isodendrion laurifolium
• Rockcod [English]: Mouriri valenzuelana
• Rockcress [English]: Arabis lyallii
• Rockcress [English]: Arabis procurrens
• Rockcress [English]: Arabis fernaldiana Rollins var. fernaldiana Rollins
• Rockcress [English]: Arabis fernaldiana Rollins var. stylosa (S.Watson) Rollins
• Rockcress [English]: Arabis aubrietioides
• Rockcress [English]: Arabis bryoides
• Rockcress [English]: Arabis carduchorum
• Rockcress [English]: Arabis ferdinandi-coburgii 'Variegata'
• Rockcress [English]: Arabis ferdinandi-coburgii
• Rockcress [English]: Arabis collina rosea
• Rockcress [English]: Arabis alpina
• Rockcress Draba [English]: Draba globosa
• Rockdaisy [English]: Melampodium cinereum
• Rockdale Daylily [English]: Hemerocallis 'Rockdale'
• Rockdwelling Sedge [English]: Carex petricosa
• Rockenbolle [German]: Allium sativum
• Rockery Ornithogalum [English]: Ornithogalum balansae
• Rockery St. Johns Wort [English]: Hypericum polyphyllum
• Rocket Azalea [English]: Rhododendron 'Rocket'
• Rocket Beach Daylily [English]: Hemerocallis 'Rocket Beach'
• Rocket Booster Daylily [English]: Hemerocallis 'Rocket Booster'
• Rocket Candy-Tuft [English]: Iberis amara
• Rocket Candytuft [English]: Iberis amara
• Rocket Candytuft [English]: Iberis amara 'Iceberg Superior'
• Rocket Candytuft [English]: Iberis amara amara
• Rocket City Daylily [English]: Hemerocallis 'Rocket City'
• Rocket Cress [English]: Barbarea vulgaris
• Rocket Cress [English]: Barbarea vulgaris var. hirsuta
• Rocket Fire Daylily [English]: Hemerocallis 'Rocket Fire'
• Rocket Larkspur [English]: Consolida ajacis
• Rocket Larkspur [English]: Consolida ambigua 'Earl Grey'
• Rocket Larkspur [English]: Consolida ambigua 'White King'
• Rocket Larkspur [English]: Consolida ambigua 'Bunny Bloom'
• Rocket Larkspur [English]: Consolida ambigua 'Blue Bell'
• Rocket Larkspur [English]: Consolida ambigua 'Frosted Skies'
• Rocket Larkspur [English]: Consolida ambigua 'Kingsize Scarlet'
• Rocket Larkspur [English]: Consolida ambigua 'Sublime Mix'
• Rocket Larkspur [English]: Delphinium ajacis 'Lonnies'
• Rocket Larkspur [English]: Consolida ambigua 'Chorus Violet'
• Rocket Larkspur [English]: Consolida ambigua 'Shades of Blue'
• Rocket Larkspur [English]: Consolida ambigua 'Sublime Rose'
• Rocket Larkspur [English]: Consolida ambigua 'Sydney Mix'
• Rocket Larkspur [English]: Consolida regalis
• Rocket Ligularia [English]: Ligularia stenocephala
• Rocket Man Daylily [English]: Hemerocallis 'Rocket Man'
• Rocket Orchid [English]: Angraecum sesquipedale
• Rocket Pincushion [English]: Leucospermum reflexum
• Rocket Rhododendron [English]: Rhododendron 'Rocket'
• Rocket Salad [English]: Eruca vesicaria subsp. sativa 'Myway'
• Rocket Salad [English]: Eruca vesicaria subsp. sativa 'Wild Italian Rocket'
• Rocket Salad [English]: Eruca vesicaria subsp. sativa 'Astro'
• Rocket Salad [English]: Eruca vesicaria subsp. sativa 'Runway'
• Rocket Salad [English]: Eruca vesicaria subsp. sativa 'Sky Rocket'
• Rocket Salad [English]: Diplotaxis erucoides 'Voyager'
• Rocket Tall Bearded Iris [English]: Iris 'Rocket'
• Rocket Tomato [English]: Lycopersicon lycopersicum 'Rocket'
• Rocket-Salad [English]: Eruca vesicaria sativa
• Rocket-Salad [English]: Eruca vesicaria
• Rocket-Salad [English]: Brassica vesicaria
• Rocket-Salad [English]: Euzomum vesicarium
• Rocketeer Daylily [English]: Hemerocallis 'Rocketeer'
• Rocketmustard [English]: Sisymbrium irio
• Rockets Red Glaring Daylily [English]: Hemerocallis 'Rockets Red Glaring'
• Rocketsalad [English]: Eruca vesicaria sativa
• Rocketsalad [English]: Eruca vesicaria
• Rocketsalad [English]: Euzomum vesicarium
• Rocketsalad [English]: Brassica vesicaria
• Rockface Cyrtandra [English]: Cyrtandra wawrae
• Rockface Starviolet [English]: Wiegmannia parvula
• Rockface Yellow Loosestrife [English]: Lysimachia remyi
• Rockfish [English]: Chrysanthemum mawei
• Rockfish [English]: Ranunculus nuricatus
• Rockfoil [English]: Saxifraga x arendsii 'Purple Robe'
• Rockfoil [English]: Saxifraga x arendsii 'Floral Carpet'
• Rockfoil [English]: Saxifraga x arendsii 'Special Mix'
• Rockfoil [English]: Saxifraga x arendsii 'Triumph'
• Rockfoil [English]: Saxifraga x arendsii
• Rockfoil [English]: Saxifraga x arendsii 'Purple Carpet'
• Rockfoil [English]: Saxifraga x arendsii 'Buttercream'
• Rockfringe [English]: Epilobium obcordatum
• Rockhouse White Snakeroot [English]: Ageratina luciae-brauniae
• Rockin' Robin Shrub Rose [English]: Rosa 'Rockin' Robin'
• Rocking Cradle Daylily [English]: Hemerocallis 'Rocking Cradle'
• Rockingham Tomato [English]: Lycopersicon lycopersicum 'Rockingham'
• Rockjasmine Buckwheat [English]: Eriogonum androsaceum
• Rockjasmine Monkeyflower [English]: Mimulus androsaceus
• Rocklady [English]: Holmgrenanthe petrophila
• Rockland Morning Glory [English]: Ipomoea tenuissima
• Rockland Morning-Glory [English]: Ipomoea tenuissima
• Rockland Morningglory [English]: Ipomoea tenuissima
• Rockland Shrub Verbena [English]: Lantana depressa
• Rockland Shrub Verbena [English]: Lantana depressa var. depressa
• Rockledge Spleenwort [English]: Asplenium ocoense
• Rocklettuce [English]: Pinaropappus roseus
• Rockloving Desert Parsley [English]: Pteryxia petraea
• Rockloving Desertparsley [English]: Pteryxia petraea
• Rockloving Erigeron [English]: Erigeron petrophilus
• Rockloving Erigeron [English]: Erigeron petrophilus Greene var. viscidulus (Gray) Nesom
• Rockloving Erigeron [English]: Erigeron petrophilus var. petrophilus
• Rockloving Erigeron [English]: Erigeron petrophilus var. viscidulus
• Rockloving Phacelia [English]: Phacelia douglasii var. petrophila
• Rockloving Spikemoss [English]: Selaginella rupincola
• Rockloving Wavewing [English]: Pteryxia petraea
• Rockmart Hawthorn [English]: Crataegus valida
• Rockmustard [English]: Dryopetalon runcinatum
• Rockmyrtle [English]: Eugenia procera
• Rockpink [English]: Talinum calycinum
• Rockpink [English]: Phemeranthus calycinus
• Rockpink [English]: Claytonia calycina
• Rockroot [English]: Agdestis clematidea
• Rockslide Fleabane [English]: Erigeron leiomerus
• Rockslide Larkspur [English]: Delphinium glareosum
• Rockslide Yellow Fleabane [English]: Erigeron leiomerus
• Rockslope Cloak Fern [English]: Notholaena trichomanoides
• Rockspirea [English]: Holodiscus dumosus
• Rockspirea [English]: Petrophyton caespitosum
• Rockspray Cotoneaster [English]: Cotoneaster horizontalis
• Rockvine Penstemon [English]: Penstemon elegantulus
• Rockweed [English]: Pilea microphylla
• Rocky False Goldenaster [English]: Heterotheca fulcrata (Greene) Shinners var. fulcrata (Greene) Shinners
• Rocky False Goldenaster [English]: Heterotheca fulcrata var. fulcrata
• Rocky Horror Daylily [English]: Hemerocallis 'Rocky Horror'
• Rocky Ledge Penstemon [English]: Penstemon ellipticus
• Rocky Mountain Starwort [English]: Stellaria obtusa
• Rocky Mountain Aletes [English]: Aletes anisatus
• Rocky Mountain Alpine Fir [English]: Abies lasiocarpa
• Rocky Mountain Alpine Fleabane [English]: Erigeron grandiflorus
• Rocky Mountain Alpineparsley [English]: Oreoxis humilis
• Rocky Mountain Alumroot [English]: Heuchera bracteata
• Rocky Mountain Ankle-Aster [English]: Ionactis stenomeres
• Rocky Mountain Aster [English]: Ionactis stenomeres
• Rocky Mountain Beardtongue [English]: Penstemon cyathophorus
• Rocky Mountain Beardtongue [English]: Penstemon strictus
• Rocky Mountain Bee-Plant [English]: Cleome serrulata
• Rocky Mountain Beeplant [English]: Cleome serrulata
• Rocky Mountain Beeplant [English]: Peritoma serrulata
• Rocky Mountain Beeplant [English]: Atalanta serrulata
• Rocky Mountain Beggarticks [English]: Bidens heterosperma
• Rocky Mountain Bellflower [English]: Campanula parryi
• Rocky Mountain Bellflower [English]: Campanula parryi var. idahoensis McVaugh
• Rocky Mountain Bladderpod [English]: Lesquerella calcicola
• Rocky Mountain Blazing Star [English]: Liatris ligulistylis
• Rocky Mountain Blue Columbine [English]: Aquilegia saximontana
• Rocky Mountain Blue Columbine Aquilegia Saximontana [English]: Aquilegia saximontana
• Rocky Mountain Bluebells [English]: Mertensia humilis
• Rocky Mountain Blueberry [English]: Amelanchier alnifolia
• Rocky Mountain Bristlecone Pine [English]: Pinus aristata
• Rocky Mountain Bulrush [English]: Schoenoplectus saximontanus
• Rocky Mountain Buttercup [English]: Ranunculus macauleyi
• Rocky Mountain Buttercup [English]: Ranunculus macauleyi var. macauleyi
• Rocky Mountain Checker-Mallow [English]: Sidalcea neomexicana
• Rocky Mountain Checker-Mallow [English]: Sidalcea neomexicana subsp. thurberi
• Rocky Mountain Chickweed [English]: Stellaria obtusa
• Rocky Mountain Cinquefoil [English]: Potentilla rubricaulis
• Rocky Mountain Cliff Fern [English]: Woodsia scopulina
• Rocky Mountain Cliff Fern [English]: Woodsia scopulina laurentiana
• Rocky Mountain Cliff Fern [English]: Woodsia scopulina scopulina
• Rocky Mountain Clover [English]: Trifolium attenuatum
• Rocky Mountain Clubmoss [English]: Selaginella densa Rydb. var. scopulorum (Maxon) R.Tryon
• Rocky Mountain Clubmoss [English]: Selaginella densa var. scopulorum
• Rocky Mountain Columbine [English]: Aquilegia caerulea
• Rocky Mountain Columbine [English]: Aquilegia saximontana
• Rocky Mountain Columbine [English]: Aquilegia caerulea 'Sahasrara'
• Rocky Mountain Cowlily [English]: Nuphar lutea subsp. polysepala
• Rocky Mountain Cowlily [English]: Nuphar lutea polysepala
• Rocky Mountain Douglas Fir [English]: Pseudotsuga menziesii var. glauca
• Rocky Mountain Douglas-Fir [English]: Pseudotsuga menziesii var. glauca
• Rocky Mountain Douglas-Fir [English]: Pseudotsuga menziesii
• Rocky Mountain Draba [English]: Draba graminea
• Rocky Mountain Draba [English]: Draba crassifolia
• Rocky Mountain Dwarf-Primrose [English]: Douglasia montana
• Rocky Mountain Fescue [English]: Festuca saximontana
• Rocky Mountain Fescue [English]: Festuca saximontana var. robertsiana
• Rocky Mountain Fescue [English]: Festuca saximontana var. purpusiana
• Rocky Mountain Fescue [English]: Festuca saximontana var. saximontana
• Rocky Mountain Fir [English]: Abies lasiocarpa
• Rocky Mountain Fir [English]: Abies lasiocarpa 'Green Globe'
• Rocky Mountain Fir [English]: Abies lasiocarpa 'Duflon'
• Rocky Mountain Fir [English]: Abies lasiocarpa x homolepis
• Rocky Mountain Fringed Gentian [English]: Gentianopsis thermalis
• Rocky Mountain Fringedgentian [English]: Gentianopsis thermalis
• Rocky Mountain Gayfeather [English]: Liatris ligulistylis
• Rocky Mountain Gentian [English]: Gentiana affinis
• Rocky Mountain Gilia [English]: Gilia scopulorum
• Rocky Mountain Glasswort [English]: Salicornia rubra
• Rocky Mountain Goldenrod [English]: Solidago multiradiata
• Rocky Mountain Goldenrod [English]: Solidago multiradiata var. multiradiata
• Rocky Mountain Goldenrod [English]: Solidago multiradiata var. scopulorum
• Rocky Mountain Goosefoot [English]: Chenopodium salinum
• Rocky Mountain Grass-Of-Parnassus [English]: Parnassia fimbriata var. intermedia
• Rocky Mountain Grass-Of-Parnassus [English]: Parnassia fimbriata
• Rocky Mountain Grass-Of-Parnassus [English]: Parnassia fimbriata var. hoodiana C.L.Hitchc.
• Rocky Mountain Groundsel [English]: Packera streptanthifolia
• Rocky Mountain Hemlock-Parsley [English]: Conioselinum scopulorum
• Rocky Mountain Hemlockparsley [English]: Conioselinum scopulorum
• Rocky Mountain High Hosta [English]: Hosta 'Rocky Mountain High'
• Rocky Mountain High Tall Bearded Iris [English]: Iris 'Rocky Mountain High'
• Rocky Mountain Indian Parsley [English]: Aletes anisatus
• Rocky Mountain Iris [English]: Iris missouriensis
• Rocky Mountain Iris [English]: Iris missouriensis f. angustispatha
• Rocky Mountain Iris Iris Missouriensis [English]: Iris missouriensis
• Rocky Mountain Jacob's-Ladder [English]: Polemonium confertum
• Rocky Mountain Juniper [English]: Juniperus scopulorum Sarg. 'Cologreen'
• Rocky Mountain Juniper [English]: Juniperus scopulorum 'Moonglow'
• Rocky Mountain Juniper [English]: Juniperus scopulorum 'Wichita Blue'
• Rocky Mountain Juniper [English]: Juniperus scopulorum 'Skyrocket'
• Rocky Mountain Juniper [English]: Juniperus scopulorum Sarg. 'Welchii'
• Rocky Mountain Juniper [English]: Juniperus scopulorum Sarg. 'Admiral'
• Rocky Mountain Juniper [English]: Juniperus scopulorum 'Platinum'
• Rocky Mountain Juniper [English]: Juniperus scopulorum
• Rocky Mountain Larkspur [English]: Delphinium scopulorum
• Rocky Mountain Lodgepole Pine [English]: Pinus contorta var. latifolia
• Rocky Mountain Lousewort [English]: Pedicularis parryi subsp. purpurea
• Rocky Mountain Maple [English]: Acer glabrum torreyi var. torreyi
• Rocky Mountain Maple [English]: Acer glabrum
• Rocky Mountain Maple [English]: Acer glabrum var. douglasii
• Rocky Mountain Maple [English]: Acer glabrum Torr. var. diffusum (Greene) Smiley
• Rocky Mountain Maple [English]: Acer glabrum var. glabrum
• Rocky Mountain Maple [English]: Acer glabrum var. diffusum
• Rocky Mountain Milk-Vetch [English]: Astragalus scopulorum
• Rocky Mountain Milkvetch [English]: Astragalus scopulorum
• Rocky Mountain Monkeyflower [English]: Mimulus gemmiparus
• Rocky Mountain Nail-Wort [English]: Paronychia depressa
• Rocky Mountain Nailwort [English]: Paronychia pulvinata
• Rocky Mountain Nailwort [English]: Paronychia pulvinata var. pulvinata
• Rocky Mountain Ninebark [English]: Physocarpus monogynus
• Rocky Mountain Oxytrope [English]: Oxytropis multiceps
• Rocky Mountain Parnassia [English]: Parnassia fimbriata
• Rocky Mountain Penstemon [English]: Penstemon strictus
• Rocky Mountain Penstemon [English]: Penstemon strictus 'Midnight Blue'
• Rocky Mountain Phacelia [English]: Phacelia denticulata
• Rocky Mountain Phlox [English]: Phlox multiflora
• Rocky Mountain Phlox [English]: Phlox multiflora costata
• Rocky Mountain Phlox [English]: Phlox multiflora subsp. depressa
• Rocky Mountain Phlox [English]: Phlox multiflora subsp. patula
• Rocky Mountain Pink Daylily [English]: Hemerocallis 'Rocky Mountain Pink'
• Rocky Mountain Pinyon Pine [English]: Pinus edulis
• Rocky Mountain Polypody [English]: Polypodium saximontanum
• Rocky Mountain Pond-Lily [English]: Nuphar lutea
• Rocky Mountain Pond-Lily [English]: Nuphar lutea subsp. polysepala
• Rocky Mountain Pond-Lily [English]: Nuphar lutea polysepala
• Rocky Mountain Ponderosa Pine [English]: Pinus ponderosa var. scopulorum
• Rocky Mountain Pondlily [English]: Nuphar lutea subsp. polysepala
• Rocky Mountain Pondlily [English]: Nuphar lutea polysepala
• Rocky Mountain Pussytoes [English]: Antennaria monocephala monocephala
• Rocky Mountain Pussytoes [English]: Antennaria luzuloides luzuloides
• Rocky Mountain Ragwort [English]: Packera debilis
• Rocky Mountain Raspberry [English]: Rubus deliciosus
• Rocky Mountain Red-Cedar [English]: Juniperus scopulorum
• Rocky Mountain Rhombopod [English]: Cleomella palmeriana
• Rocky Mountain Rockmat [English]: Petrophyton caespitosum var. caespitosum
• Rocky Mountain Rockrose [English]: Helianthella uniflora
• Rocky Mountain Rockspirea [English]: Petrophyton caespitosum var. elatius
• Rocky Mountain Rockspirea [English]: Petrophyton caespitosum var. caespitosum
• Rocky Mountain Rush [English]: Juncus saximontanus
• Rocky Mountain Sage [English]: Salvia reflexa
• Rocky Mountain Scorpionweed [English]: Phacelia denticulata
• Rocky Mountain Sedge [English]: Carex arapahoensis
• Rocky Mountain Sedge [English]: Carex backii
• Rocky Mountain Sedge [English]: Carex saximontana
• Rocky Mountain Sedge [English]: Carex scopulorum var. scopulorum
• Rocky Mountain Snowlover [English]: Chionophila jamesii
• Rocky Mountain Spike-Moss [English]: Selaginella weatherbiana
• Rocky Mountain Spike-moss [English]: Selaginella densa Rydb. var. scopulorum (Maxon) R.Tryon
• Rocky Mountain Spikemoss [English]: Selaginella weatherbiana
• Rocky Mountain Spikemoss [English]: Selaginella densa Rydb. var. scopulorum (Maxon) R.Tryon
• Rocky Mountain Spikemoss [English]: Selaginella densa var. scopulorum
• Rocky Mountain Spring Beauty [English]: Claytonia rosea
• Rocky Mountain Spring-Beauty [English]: Claytonia rosea
• Rocky Mountain Springparsley [English]: Cymopterus planosus
• Rocky Mountain Stickweed [English]: Cleomella palmeriana
• Rocky Mountain Stinkweed [English]: Cleomella palmeriana
• Rocky Mountain Thistle [English]: Cirsium perplexans
• Rocky Mountain Trisetum [English]: Trisetum spicatum
• Rocky Mountain Trisetum [English]: Trisetum montanum var. montanum
• Rocky Mountain Wavewing [English]: Cymopterus planosus
• Rocky Mountain White Fir [English]: Abies concolor
• Rocky Mountain White Oak [English]: Quercus gambelii
• Rocky Mountain White Pine [English]: Pinus flexilis
• Rocky Mountain Whitethroat [English]: Dasynotus daubenmirei
• Rocky Mountain Wild-Rye [English]: Leymus ambiguus
• Rocky Mountain Willow-Herb [English]: Epilobium saximontanum
• Rocky Mountain Willowherb [English]: Epilobium saximontanum
• Rocky Mountain Willowherb [English]: Epilobium rigidum
• Rocky Mountain Willowweed [English]: Epilobium saximontanum
• Rocky Mountain Woodsia [English]: Woodsia scopulina
• Rocky Mountain Woodsia [English]: Woodsia scopulina laurentiana
• Rocky Mountain Woodsia [English]: Woodsia scopulina scopulina
• Rocky Mountain Zinnia [English]: Zinnia grandiflora
• Rocky Mountains Spike-Moss [English]: Bryodesma densum
• Rocky Mountains Spike-Moss [English]: Selaginella densa
• Rocky Plains Dwarf Morning-Glory [English]: Evolvulus squamosus
• Rocky Ragwort [English]: Senecio megacephalus
• Rocky Road Hosta [English]: Hosta 'Rocky Road'
• Rocky Top Hybrids Coneflower [English]: Echinacea tennesseensis 'Rocky Top Hybrids'
• Rocky Top Purple Coneflower [English]: Echinacea tennesseensis 'Rocky Top'
• Rocky-Scree False Golden-Aster [English]: Heterotheca fulcrata
• Rockydells Aimee Daylily [English]: Hemerocallis 'Rockydell's Aimee'
• Rockydells Carolyn Daylily [English]: Hemerocallis 'Rockydell's Carolyn'
• Rockydells Wendi Cherie Daylily [English]: Hemerocallis 'Rockydell's Wendi Cherie'
• Rockyplains Dwarf Morning-Glory [English]: Evolvulus squamosus
• Rockys Eye Daylily [English]: Hemerocallis 'Rocky's Eye'
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata (Greene) Shinners var. amplifolia (Rydb.) Semple
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata (Greene) Shinners var. fulcrata (Greene) Shinners
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata var. senilis
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata var. fulcrata
• Rockyscree False Goldenaster [English]: Heterotheca fulcrata var. amplifolia
• Rockyscree Falsegoldenaster [English]: Heterotheca fulcrata
• Rockyscree Falsegoldenaster [English]: Heterotheca fulcrata (Greene) Shinners var. fulcrata (Greene) Shinners
• Rockyscree Falsegoldenaster [English]: Heterotheca fulcrata var. senilis
• Rockyscree Falsegoldenaster [English]: Heterotheca fulcrata var. fulcrata
• Rockyscree Hawkweed [English]: Hieracium rigorosum
• Rockyscree Hawkweed [English]: Hieracium rigorosum var. nanusekense
• Rockyscree Hawkweed [English]: Hieracium rigorosum var. rigorosum
• Rockyscree Hawkweed [English]: Hieracium rigorosum var. sermilikense
• Rockyscree Hawkweed [English]: Hieracium rigorosum var. unanakense
• Rococo Daylily [English]: Hemerocallis 'Rococo'
• Rococo Tall Bearded Iris [English]: Iris 'Rococo'
• Rocoina [Romanian]: Stellaria media media
• Rocoina [Romanian]: Stellaria media
• Rocondambo [Malagasy]: Alistilus jumellei
• Rocotillo [Spanish]: Capsicum chinense
• Rocotillo [English]: Capsicum chinense
• Rocoto [English]: Capsicum pubescens
• Rocou [French]: Bixa orellana
• Rocou [Dutch]: Bixa orellana
• Rocouyer [French]: Bixa orellana
• Rod Halimolobos [English]: Halimolobos virgata
• Rod Halimolobos [English]: Transberingia virgata
• Rod Wirelettuce [English]: Stephanomeria virgata
• Rodadora (Mexico) [Spanish]: Salsola tragus
• Roddy Rhododendron [English]: Rhododendron 'Roddy'
• Rode Aalbes [Dutch]: Ribes rubrum
• Rode Bessen [Dutch]: Ribes rubrum
• Rode Biet [Dutch]: Beta vulgaris vulgaris
• Rode Biet [Dutch]: Beta vulgaris
• Rode Bosbessen [Dutch]: Vaccinium vitis-idaea minus
• Rode Dopheide;grauwe Dopheide [Dutch]: Erica cinerea
• Rode Ganzevoet [Dutch]: Chenopodium rubrum
• Rode Hauwklaver [Dutch]: Lotus tetragonolobus
• Rode Kabbes [English]: Andira surinamensis
• Rode Kamperfoelie [Dutch]: Lonicera xylosteum
• Rode Klaver [Dutch]: Trifolium pratense
• Rode Klokke Pasqueflower [English]: Pulsatilla vulgaris 'Rode Klokke'
• Rode Lauan [Dutch]: Shorea negrosensis
• Rode Lauan [Dutch]: Shorea polysperma
• Rode Mombinpruim [Dutch]: Spondias purpurea
• Rode Pek-Anjer (As Lychnis Viscaria) [Dutch]: Silene viscaria viscaria
• Rode Winterradijs [Dutch]: Raphanus sativus
• Rodeo Drive Daylily [English]: Hemerocallis 'Rodeo Drive'
• Roderick's Fawnlily [English]: Erythronium citrinum var. roderickii Shevock & Allen
• Roderick's Fawnlily [English]: Erythronium citrinum var. roderickii
• Rodetrosbes [Dutch]: Ribes rubrum
• Rodger Croker Daylily [English]: Hemerocallis 'Rodger Croker'
• Rodger Daylily [English]: Hemerocallis 'Rodger'
• Rodger's Flower-Featherleaf [English]: Rodgersia pinnata 'Hercules'
• Rodgers Flower [English]: Rodgersia pinnata
• Rodgers Flower [English]: Rodgersia pinnata 'Elegans'
• Rodgers Flower [English]: Rodgersia pinnata 'Firework'
• Rodgers Flower [English]: Rodgersia aesculifolia
• Rodgers Flower [English]: Rodgersia henrici
• Rodgers Flower [English]: Rodgersia aesculifolia 'Big Mama'
• Rodgersia [English]: Rodgersia podophylla
• Rodgersia [English]: Rodgersia 'Chocolate Wings'
• Rodgersia [English]: Rodgersia sambucifolia
• Rodgersia [English]: Rodgersia podophylla 'Braunlaub'
• Rodi [Greek]: Punica granatum
• Rodi [Greek, Modern (1453)]: Punica granatum
• Rodia [Greek]: Punica granatum
• Rodia [Greek, Modern (1453)]: Punica granatum
• Rodiá [Greek, Modern (1453)]: Punica granatum
• Rodie [Romanian]: Punica granatum
• Rodiola Rozovaja [Russian]: Rhodiola rosea
• Rodklover [Swiss]: Trifolium pratense
• Rodlauan [Danish]: Shorea negrosensis
• Rodney The Great Daylily [English]: Hemerocallis 'Rodney The Great'
• Rodopska Liutserna [Bulgarian]: Medicago rhodopaea
• Rodpersille [Danish]: Petroselinum crispum
• Rodricidium [English]: Rodricidium 'Rodricidium Gusto x Rodricidium Just Dandy'