Names beginning with R: rabbit's-foot grass, rabbit-brush, rabbit-ears, rabbit-tobacco, rabbitbrush, rabbitleaf, radish, ragged robin, ragweed, ragwort, rampion, rapeseed, raspberry, rattlesnake-plantain, rattlesnake-root, ravennagrass, red cedar, red maids, red-dye, redbelt, redcedar, redmaids, redmainds, redshank, redstem, redtip, redwood-sorrel, reed, reedgrass, rein-orchid, reishi, resinweed, Rhizopogon, rhododendron, rhubarb, rice, ricegrass, ringstalk, rock-brake, rock-jasmine, rockcress, rocket, rockmat, roll-rim, rollrim, root, rose, rosegill, rosemallow, rosemary, roseroot, rosette, rot, rough-stem, roundhead, rupturewort, rush, Russian-olive, russula, Russula, russula, Russula, russula, Russula, russula, Russula, russula, rust, rustgill, rusty-root, rye, ryegrass
Rabbit's-foot grass
annual rabbit's-foot grass (Polypogon monspeliensis) – 19 photos
Rabbit-brush
common rabbit-brush (Ericameria nauseosa) – 31 photos
green rabbit-brush (Chrysothamnus viscidiflorus) – 6 photos
Rabbit-ears
rabbit-ears (Otidea leporina) – 4 photos
yellow rabbit-ears (Otidea leporina) – 4 photos
Rabbit-tobacco
Macoun's rabbit-tobacco (Pseudognaphalium macounii) – 28 photos
northwestern rabbit-tobacco (Pseudognaphalium thermale) – 39 photos
red-tip rabbit-tobacco (Pseudognaphalium luteoalbum) – 13 photos
Wright's rabbit-tobacco (Pseudognaphalium canescens) – 1 photo
Rabbitbrush
little rabbitbrush (Ericameria nauseosa var. nana) – 1 photo
rubber rabbitbrush (Ericameria nauseosa var. speciosa) – 32 photos
sticky flowered rabbitbrush (Chrysothamnus viscidiflorus ssp. viscidiflorus) – 20 photos
sticky-leaf rabbitbrush (Chrysothamnus viscidiflorus ssp. lanceolatus) – 21 photos
sticky-leaf rabbitbrush (Chrysothamnus viscidiflorus ssp. viscidiflorus) – 20 photos
Truckee green rabbitbrush (Chrysothamnus humilis) – 14 photos
Truckee rabbitbrush (Chrysothamnus humilis) – 14 photos
yellow rabbitbrush (Chrysothamnus viscidiflorus ssp. lanceolatus) – 21 photos
yellow rabbitbrush (Chrysothamnus viscidiflorus ssp. viscidiflorus) – 40 photos
Rabbitleaf
common rabbitleaf (Lagophylla ramosissima) – 34 photos
Radish
garden radish (Raphanus sativus) – 38 photos
wild radish (Raphanus raphanistrum) – 27 photos
Ragged robin
ragged robin (Clarkia pulchella) – 50 photos
Ragweed
annual ragweed (Ambrosia artemisiifolia) – 25 photos
bur ragweed (Ambrosia acanthicarpa) – 37 photos
common ragweed (Ambrosia artemisiifolia) – 25 photos
giant ragweed (Ambrosia trifida) – 10 photos
perennial ragweed (Ambrosia psilostachya) – 10 photos
western ragweed (Ambrosia psilostachya) – 10 photos
Ragwort
alkali marsh ragwort (Senecio hydrophilus) – 19 photos
arrowleaf ragwort (Senecio triangularis) – 56 photos
arrowleaf ragwort (Senecio triangularis var. triangularis) – 17 photos
Bolander's ragwort (Packera bolanderi var. bolanderi) – 5 photos
Elmer's ragwort (Senecio elmeri) – 16 photos
Harford's ragwort (Packera bolanderi var. harfordii) – 8 photos
Olympic Mountain ragwort (Senecio neowebsteri) – 21 photos
silver ragwort (Jacobaea maritima) – 3 photos
Siskiyou Mountain ragwort (Packera macounii) – 12 photos
sticky ragwort (Senecio viscosus) – 7 photos
tansy ragwort (Jacobaea vulgaris) – 46 photos
woodland ragwort (Senecio sylvaticus) – 26 photos
Rampion
scorzonera-leaved rampion (Phyteuma scorzonerifolium) – 5 photos
Rapeseed
Raspberry
blackcap raspberry (Rubus leucodermis) – 68 photos
dark raspberry (Rubus leucodermis) – 68 photos
dark raspberry (Rubus nigerrimus) – 2 photos
dwarf red blackberry raspberry (Rubus pubescens) – 23 photos
grayleaf red raspberry (Rubus idaeus ssp. strigosus) – 28 photos
northwest raspberry (Rubus nigerrimus) – 2 photos
red raspberry (Rubus idaeus) – 5 photos
red raspberry (Rubus idaeus ssp. strigosus) – 28 photos
red raspberry (Rubus pubescens) – 23 photos
strawberry-leaf raspberry (Rubus pedatus) – 46 photos
whitebark raspberry (Rubus leucodermis) – 68 photos
Rattlesnake-plantain
giant rattlesnake-plantain (Goodyera oblongifolia) – 65 photos
western rattlesnake-plantain (Goodyera oblongifolia) – 65 photos
Rattlesnake-root
western rattlesnake-root (Nabalus hastatus) – 32 photos
Ravennagrass
ravennagrass (Tripidium ravennae) – 30 photos
Red cedar
western red cedar (Thuja plicata) – 53 photos
Red maids
fringed red maids (Calandrinia menziesii) – 10 photos
Red-dye
western red-dye (Cortinarius smithii (phoeniceus v occidentalis)) – 2 photos
Redbelt
Redcedar
Rocky Mountain redcedar (Juniperus scopulorum) – 63 photos
Redmaids
fringed redmaids (Calandrinia ciliata) – 13 photos
Redmainds
Redshank
Redstem
grand redstem (Ammannia robusta) – 11 photos
valley redstem (Ammannia coccinea) – 3 photos
Redtip
Chinese redtip (Photinia davidiana var. davidiana) – 1 photo
Redwood-sorrel
redwood-sorrel (Oxalis oregana) – 23 photos
Reed
common reed (Phragmites australis) – 33 photos
common reed (Phragmites australis ssp. americanus) – 3 photos
common reed (Phragmites australis ssp. australis) – 17 photos
Reedgrass
bluejoint reedgrass (Calamagrostis canadensis) – 22 photos
bluejoint reedgrass (Calamagrostis canadensis var. canadensis) – 21 photos
Cascade reedgrass (Calamagrostis tweedyi) – 2 photos
Langsdorff's jointed reedgrass (Calamagrostis canadensis var. langsdorffii) – 1 photo
narrow-spiked reedgrass (Calamagrostis stricta ssp. inexpansa) – 3 photos
Nootka reedgrass (Calamagrostis nutkaensis) – 2 photos
purple reedgrass (Calamagrostis purpurascens) – 3 photos
Rainier reedgrass (Calamagrostis tacomensis) – 5 photos
slimstem reedgrass (Calamagrostis stricta) – 13 photos
Rein-orchid
Alaska rein-orchid (Platanthera unalascensis) – 47 photos
blunt-leaf rein-orchid (Platanthera obtusata) – 1 photo
blunt-leaf rein-orchid (Platanthera obtusata ssp. obtusata) – 1 photo
elegant rein-orchid (Platanthera elegans) – 16 photos
elegant rein-orchid (Platanthera elegans ssp. elegans) – 17 photos
hillside rein orchid (Platanthera elegans) – 16 photos
hillside rein-orchid (Platanthera elegans ssp. elegans) – 17 photos
one-leaf rein-orchid (Platanthera obtusata) – 1 photo
one-leaf rein-orchid (Platanthera obtusata ssp. obtusata) – 1 photo
white rein-orchid (Platanthera dilatata) – 48 photos
white-lip rein-orchid (Platanthera ephemerantha) – 20 photos
Reishi
Resinweed
serrate resinweed (Grindelia squarrosa) – 41 photos
serrate resinweed (Grindelia squarrosa var. serrulata) – 5 photos
Rhizopogon
western Rhizopogon (Rhizopogon occidentalis) – 3 photos
Rhododendron
California rhododendron (Rhododendron macrophyllum) – 45 photos
Pacific rhododendron (Rhododendron macrophyllum) – 45 photos
white rhododendron (Rhododendron albiflorum) – 59 photos
Rhubarb
Rice
Indian rice (Fritillaria camschatcensis) – 23 photos
Ricegrass
Indian ricegrass (Achnatherum hymenoides) – 23 photos
Richardson's ricegrass (Achnatherum richardsonii) – 12 photos
Thurber's ricegrass (Achnatherum thurberianum) – 11 photos
white-grain mountain ricegrass (Oryzopsis asperifolia) – 24 photos
Ringstalk
luxuriant ringstalk (Stropharia hornemannii) – 6 photos
Rock-brake
American rock-brake (Cryptogramma acrostichoides) – 26 photos
Cascades rock-brake (Cryptogramma cascadensis) – 20 photos
fragile rock-brake (Cryptogramma stelleri) – 7 photos
slender rock-brake (Cryptogramma stelleri) – 7 photos
Steller's rock-brake (Cryptogramma stelleri) – 7 photos
Rock-jasmine
slender-stem rock-jasmine (Androsace filiformis) – 12 photos
Rockcress
Blue Mountain rockcress (Boechera puberula) – 13 photos
Canadian rockcress (Boechera stricta) – 17 photos
Cascade rockcress (Arabis furcata) – 16 photos
Columbia Gorge rockcress (Arabis furcata) – 16 photos
Columbia rockcress (Boechera pauciflora) – 69 photos
crosshaired rockcress (Arabis crucisetosa) – 2 photos
Cusick's rockcress (Boechera cusickii) – 50 photos
dangle-pod rockcress (Boechera pendulocarpa) – 26 photos
dark-red-flowered rockcress (Boechera atrorubens) – 34 photos
Drummond's rockcress (Boechera stricta) – 17 photos
elegant rockcress (Boechera sparsiflora) – 110 photos
few-flowered rockcress (Boechera pauciflora) – 69 photos
fork-haired rockcress (Arabis furcata) – 16 photos
Graham's rockcress (Boechera grahamii) – 6 photos
hairy rockcress (Arabis eschscholtziana) – 19 photos
hoary rockcress (Boechera puberula) – 13 photos
kamchatka rockcress (Arabidopsis kamchatica) – 2 photos
Lemmon's rockcress (Boechera lemmonii) – 6 photos
little-leaf rockcress (Boechera microphylla) – 27 photos
Lyall's rockcress (Boechera lyallii) – 84 photos
lyre-leaved rockcress (Arabidopsis kamchatica) – 2 photos
mountain rockcress (Arabis caucasica) – 1 photo
Mt. Adams rockcress (Boechera paddoensis) – 4 photos
murry's rockcress (Boechera lyallii) – 42 photos
Nuttall's rockcress (Arabis nuttallii) – 14 photos
Olympics rockcress (Arabis olympica) – 25 photos
Pacific coast rockcress (Arabis eschscholtziana) – 19 photos
reflexed rockcress (Boechera retrofracta) – 71 photos
slender rockcress (Boechera sparsiflora) – 110 photos
small-flowered rockcress (Boechera pauciflora) – 69 photos
small-flowered rockcress (Boechera paupercula) – 7 photos
small-leaved rockcress (Boechera microphylla) – 27 photos
spreading-pod rockcress (Boechera divaricarpa) – 7 photos
western rockcress (Arabidopsis kamchatica) – 2 photos
woody rockcress (Boechera suffrutescens) – 5 photos
Rocket
American sea rocket (Cakile edentula ssp. edentula) – 11 photos
American wintercress rocket (Barbarea orthoceras) – 65 photos
dame's rocket (Hesperis matronalis) – 32 photos
Dyer's rocket (Reseda luteola) – 5 photos
early yellow rocket (Barbarea verna) – 1 photo
false London rocket (Sisymbrium loeselii) – 27 photos
hairy rocket (Erucastrum gallicum) – 11 photos
prairie rocket (Erysimum capitatum var. capitatum) – 27 photos
prairie rocket (Erysimum inconspicuum) – 7 photos
sea rocket (Cakile edentula ssp. edentula) – 11 photos
small-flowered rocket (Erysimum inconspicuum) – 7 photos
tall rocket (Sisymbrium altissimum) – 39 photos
yellow rocket (Barbarea orthoceras) – 65 photos
yellow rocket (Barbarea vulgaris) – 18 photos
Rockmat
Chelan rockmat (Petrophytum cinerascens) – 10 photos
Olympic Mountain rockmat (Petrophytum hendersonii) – 72 photos
Rocky Mountain rockmat (Petrophytum caespitosum) – 5 photos
Roll-rim
Rollrim
blackbase rollrim (Tapinella atrotomentosa) – 8 photos
brown rollrim (Paxillus involutus) – 9 photos
oyster rollrim (Tapinella panuoides (Paxillus)) – 2 photos
velvet rollrim (Tapinella atrotomentosa) – 8 photos
Root
cucumber root (Streptopus amplexifolius) – 67 photos
tobacco root (Valeriana edulis var. edulis) – 3 photos
Rose
Arkansas rose (Rosa arkansana) – 4 photos
bald-hip rose (Rosa gymnocarpa) – 50 photos
bristly Nootka rose (Rosa nutkana ssp. macdougalii) – 22 photos
clustered rose (Rosa pisocarpa) – 30 photos
clustered rose (Rosa pisocarpa ssp. pisocarpa) – 9 photos
multiflora rose (Rosa multiflora) – 48 photos
Nootka rose (Rosa nutkana) – 35 photos
Nootka rose (Rosa nutkana ssp. macdougalii) – 22 photos
Nootka rose (Rosa nutkana ssp. nutkana) – 22 photos
peafruit rose (Rosa pisocarpa) – 30 photos
peafruit rose (Rosa pisocarpa ssp. pisocarpa) – 9 photos
pearhip rose (Rosa woodsii) – 78 photos
prairie rose (Rosa arkansana) – 4 photos
prickly rose (Rosa acicularis) – 1 photo
rambler rose (Rosa multiflora) – 48 photos
rugosa rose (Rosa rugosa) – 57 photos
sweetbrier rose (Rosa rubiginosa) – 25 photos
Rosegill
stubble rosegill (Volvariella gloiocephala) – 5 photos
Rosemallow
crimsoneyed rosemallow (Hibiscus moscheutos) – 3 photos
Rosemary
bog rosemary (Andromeda polifolia) – 4 photos
bog rosemary (Andromeda polifolia var. polifolia) – 10 photos
Roseroot
Rosette
blushing rosette (Abortiporus biennis) – 3 photos
Rot
Rough-stem
aspen rough-stem (Leccinum insigne) – 4 photos
Roundhead
conifer roundhead (Stropharia hornemannii) – 6 photos
redlead roundhead (Leratiomyces ceres Hypholoma aurantiacum) – 2 photos
verdigris roundhead (Stropharia aeruginosa) – 5 photos
Rupturewort
hairy rupturewort (Herniaria hirsuta) – 1 photo
Rush
alpine rush (Juncus alpinoarticulatus) – 7 photos
Baltic rush (Juncus balticus) – 8 photos
Baltic rush (Juncus balticus ssp. ater) – 52 photos
black rush (Juncus gerardi) – 9 photos
Bolander's rush (Juncus bolanderi) – 19 photos
Brewer's rush (Juncus breweri) – 8 photos
bulbous rush (Juncus bulbosus) – 4 photos
Canadian rush (Juncus canadensis) – 2 photos
coastal rush (Juncus hesperius) – 5 photos
common rush (Juncus effusus) – 19 photos
compact rush (Juncus conglomeratus) – 1 photo
Coville's rush (Juncus covillei) – 13 photos
dagger rush (Juncus ensifolius) – 41 photos
daggerleaf rush (Juncus ensifolius) – 41 photos
Drummond's rush (Juncus drummondii) – 11 photos
Dudley's rush (Juncus dudleyi) – 12 photos
eastern soft rush (Juncus effusus ssp. solutus) – 12 photos
flowering rush (Butomus umbellatus) – 16 photos
hair-leaved rush (Juncus supiniformis) – 17 photos
inch-high rush (Juncus uncialis) – 13 photos
inland rush (Juncus interior) – 11 photos
joint-leaved rush (Juncus articulatus) – 4 photos
jointed rush (Juncus articulatus) – 4 photos
jointed rush (Juncus articulatus ssp. articulatus) – 37 photos
jointleaf rush (Juncus articulatus ssp. articulatus) – 37 photos
knotted rush (Juncus nodosus) – 20 photos
knotty leaf rush (Juncus acuminatus) – 27 photos
long-styled rush (Juncus longistylis) – 21 photos
Mertens' rush (Juncus mertensianus) – 30 photos
narrow-panicled rush (Juncus tweedyi) – 14 photos
Nevada rush (Juncus nevadensis) – 19 photos
Nevada rush (Juncus nevadensis var. nevadensis) – 5 photos
northern rush (Juncus alpinoarticulatus) – 7 photos
Oregon rush (Juncus nevadensis var. inventus) – 3 photos
Pacific rush (Juncus effusus) – 19 photos
Pacific rush (Juncus effusus ssp. pacificus) – 11 photos
Parry's rush (Juncus parryi) – 18 photos
pointed rush (Juncus oxymeris) – 7 photos
poverty rush (Juncus tenuis) – 34 photos
Regel's rush (Juncus regelii) – 13 photos
Rocky Mountain rush (Juncus saximontanus) – 10 photos
sharp-fruited rush (Juncus acuminatus) – 27 photos
shiny rush (Juncus laccatus) – 2 photos
sickle-leaved rush (Juncus falcatus) – 2 photos
Sierra rush (Juncus nevadensis var. nevadensis) – 5 photos
slender rush (Juncus tenuis) – 34 photos
spreading rush (Juncus bulbosus) – 4 photos
spreading rush (Juncus patens) – 5 photos
spreading rush (Juncus supiniformis) – 17 photos
straight-leaved rush (Juncus orthophyllus) – 14 photos
tapered rush (Juncus acuminatus) – 27 photos
thread rush (Juncus filiformis) – 16 photos
threeflower rush (Juncus drummondii) – 11 photos
Torrey's rush (Juncus torreyi) – 9 photos
tuberous rush (Juncus nodosus) – 20 photos
valley rush (Juncus balticus ssp. ater) – 26 photos
Vasey's rush (Juncus vaseyi) – 13 photos
western rush (Juncus occidentalis) – 2 photos
western toad rush (Juncus bufonius var. occidentalis) – 2 photos
Russian-olive
Russian-olive (Elaeagnus angustifolia) – 48 photos
Russula
almond-scented russula (Russula laurocerasi) – 4 photos
American russula (Russula americana) – 2 photos
bicolored russula (Russula bicolor) – 3 photos
black and white russula (Russula albonigra) – 2 photos
blackening russula (Russula albonigra) – 2 photos
blackening russula (Russula nigricans) – 3 photos
Cascade russula (Russula cascadensis) – 4 photos
creamy russula (Russula cremoricolor) – 1 photo
emetic russula (Russula emetica) – 4 photos
fragile russula (Russula fragilis) – 7 photos
grass-green russula (Russula aeruginea) – 5 photos
graying russula (Russula decolorans) – 1 photo
green russula (Russula aeruginea) – 5 photos
integrated russula (Russula albonigra) – 2 photos
Russula
pleasing Russula (Russula placita) – 1 photo
rainbow Russula (Russula olivacea) – 4 photos
Russula
reddening russula (Russula densifolia) – 2 photos
Russula
rosy Russula (Russula sanguinaria) – 7 photos
Russula
short-stemmed russula (Russula brevipes) – 6 photos
Russula
shrimp Russula (Russula xerampelina) – 5 photos
Russula
tacky green russula (Russula aeruginea) – 5 photos
Russula
tan-colored Russula (Russula olivacea) – 4 photos
Russula
western russula (Russula occidentalis) – 3 photos
Rust
cedar apple rust (Gymnosporangium juniperi-virginianae) – 1 photo
Rustgill
common rustgill (Gymnopilus penetrans) – 5 photos
scaly rustgill (Gymnopilus sapineus) – 3 photos
Rusty-root
gold rusty-root (Ramaria celerivirescens) – 2 photos
pale peach rusty-root (Ramaria amyloidea) – 3 photos
white rusty-root (Ramaria velocimutans) – 5 photos
Rye
bearded wild rye (Elymus caninus) – 2 photos
Canadian wild rye (Elymus canadensis) – 8 photos
cultivated rye (Secale cereale) – 43 photos
spurred rye (Claviceps purpurea) – 4 photos
Ryegrass
annual ryegrass (Lolium multiflorum) – 17 photos
English ryegrass (Lolium perenne) – 12 photos
Italian ryegrass (Lolium multiflorum) – 17 photos
perennial ryegrass (Lolium multiflorum) – 17 photos
perennial ryegrass (Lolium perenne) – 12 photos
yellow ryegrass (Leymus mollis ssp. mollis) – 5 photos
