|
Weed Name |
Bayer Code
|
Family |
Genus |
Species |
|
rabbit-tobbaco
|
GNAOB
|
Compositae
|
Gnaphalium
|
polycephalum Michx.
|
|
rabbitbells
|
CVTRO
|
Leguminosae
|
Crotalaria
|
rotundifolia Gmel.
|
|
rabbitbrush
|
CYTSS
|
Compositae
|
Chrysothamnus
|
sp.
|
|
rabbitbrush, Douglas
|
CYTVI
|
Compositae
|
Chrysothamnus
|
viscidiflorus (Hook.) Nutt.
|
|
rabbitbrush, Parry
|
CYTPA
|
Compositae
|
Chrysothamnus
|
parryi (Gray) Greene
|
|
rabbitbrush, desert
|
CYTPN
|
Compositae
|
Chrysothamnus
|
paniculatus (Gray) Hall
|
|
rabbitbrush, gray
|
CYTNA
|
Compositae
|
Chrysothamnus
|
nauseosus (Pallas) Britt.
|
|
rabbitbrush, greenplume
|
CYTNG
|
Compositae
|
Chrysothamnus
|
nauseosus ssp. graveolens (Nutt.) Piper
|
|
rabbitbrush, southwest
|
CYTPU
|
Compositae
|
Chrysothamnus
|
pulchellus (Gray) Greene
|
|
rabbitfootgrass
|
POHMO
|
Gramineae
|
Alopecurus
|
monspeliensis (L.) Desf.
|
|
radish
|
RAPSN
|
Cruciferae
|
Raphanus
|
sativus L.
|
|
radish, wild
|
RAPRA
|
Cruciferae
|
Raphanus
|
raphanistrum L.
|
|
ragweed, blood
|
AMBTT
|
Compositae
|
Ambrosia
|
trifida var. texana Scheele
|
|
ragweed, common
|
AMBEL
|
Compositae
|
Ambrosia
|
artemisiifolia L.
|
|
ragweed, false
|
FRSST
|
Compositae
|
Ambrosia
|
tenuifolia Spreng.
|
|
ragweed, giant
|
AMBTR
|
Compositae
|
Ambrosia
|
trifida L.
|
|
ragweed, lanceleaf
|
AMBBI
|
Compositae
|
Ambrosia
|
bidentata Michx.
|
|
ragweed, parthenium
|
FRSCO
|
Compositae
|
Ambrosia
|
maritima auct., non L.
|
|
ragweed, perennial
|
AMBPC
|
Compositae
|
Ambrosia
|
psilostachya var. coronopifolia (T. & G.) Farw.
|
|
ragweed, western
|
AMBPS
|
Compositae
|
Ambrosia
|
psilostachya DC.
|
|
ragwort
|
SENSS
|
Compositae
|
Senecio
|
sp.
|
|
ragwort, tansy
|
SENJA
|
Compositae
|
Senecio
|
jacobaea L.
|
|
rape, bird
|
BRSRO
|
Cruciferae
|
Brassica
|
rapa L. ssp. oleifera (DC.) Metzg.
|
|
raspberry
|
RUBSS
|
Rosaceae
|
Rubus
|
sp.
|
|
raspberry, American red
|
RUBSG
|
Rosaceae
|
Rubus
|
idaeus var. strigosus (Michx.) Maxim.
|
|
raspberry, European red
|
RUBID
|
Rosaceae
|
Rubus
|
idaeus L.
|
|
raspberry, Molucca
|
RUBMO
|
Rosaceae
|
Rubus
|
moluccanus L.
|
|
rattle, yellow
|
RHIMI
|
Scrophulariaceae
|
Rhinanthus
|
minor L.
|
|
rattlebox
|
CVTSA
|
Leguminosae
|
Crotalaria
|
sagittalis L.
|
|
rattlebox, wedgeleaf
|
CVTRE
|
Leguminosae
|
Crotalaria
|
retusa L.
|
|
rattlebush
|
SEBPU
|
Leguminosae
|
Daubentonia
|
punicea (Cav.) DC.
|
|
rattlebush, Drummond
|
SEBDR
|
Leguminosae
|
Sesbania
|
drummondii (Rydb.) Cory
|
|
rattlesnakeweed
|
HIEVE
|
Compositae
|
Hieracium
|
venosum L.
|
|
ravennagrass
|
ERNRA
|
Gramineae
|
Erianthus
|
ravennae (L.) Beauv.
|
|
redbud, eastern
|
CCSCA
|
Fabaceae
|
Cercis
|
canadensis L.
|
|
redcedar, eastern
|
IUPVI
|
Cupressaceae
|
Juniperus
|
virginiana L.
|
|
redcedar, southern
|
IUPSL
|
Cupressaceae
|
Juniperus
|
silicicola (Small) Bailey
|
|
redroot
|
LAHTI
|
Haemodoraceae
|
Lachnanthes
|
tinctorum (Gmel.) Sprague
|
|
redstem
|
AMMAU
|
Lythraceae
|
Ammannia
|
auriculata Willd.
|
|
redtopgrass
|
AGSGI
|
Gramineae
|
Agrostis
|
alba L. var. stolonifera (L.) SM.
|
|
redvine
|
BRVCI
|
Polygonaceae
|
Brunnichia
|
cirrhosa Gaertn.
|
|
redweed
|
MEOCO
|
Sterculiaceae
|
Melochia
|
corchorifolia L.
|
|
reed, common
|
PHRCO
|
Gramineae
|
Phragmites
|
australis (Cav.) Trin. ex Steud.
|
|
reed, giant
|
ABKDO
|
Gramineae
|
Arundo
|
donax L.
|
|
reedgrass, bluejoint
|
CLMCD
|
Poaceae
|
Calamagrostis
|
canadensis (Michx.) Nutt.
|
|
rescuegrass
|
BROCA
|
Gramineae
|
Bromus
|
schraderi Kunth
|
|
rhodesgrass
|
CHRGA
|
Gramineae
|
Chloris
|
gayana Kunth
|
|
rhododendron, Canadian
|
RHOCA
|
Ericaceae
|
Rhododendron
|
canadense (L.) Torr.
|
|
rice, including red rice
|
ORYSA
|
Gramineae
|
Oryza
|
sativa L.
|
|
ricegrass
|
SPTAN
|
Gramineae
|
Spartina
|
anglica C.E.Hubb
|
|
rocket
|
many
|
Cruciferae
|
many
|
many
|
|
rocket, London
|
SSYIR
|
Cruciferae
|
Sisymbrium
|
irio L.
|
|
rocket, garden
|
ERUVE
|
Cruciferae
|
Eruca
|
vesicaria (L.) Cav. ssp. sativa (Mill.) Thell.
|
|
rocket, sand
|
DIPMU
|
Cruciferae
|
Diplotaxis
|
muralis (L.) DC.
|
|
rocket, wall
|
DIPTE
|
Cruciferae
|
Diplotaxis
|
tenuifolia (L.) DC.
|
|
rocket, yellow
|
BARVU
|
Cruciferae
|
Barbarea
|
vulgaris R. Br.
|
|
rockpurslane, desert
|
CLNCM
|
Portulacaceae
|
Calandrinia
|
ciliata (R.&P.) DC. var. menziesii (Hook.) Macbr.
|
|
rockpurslane, redmaids
|
CLNCM
|
Portulacaceae
|
Calandrinia
|
caulescens (R.&P.) DC. var. menziesii (Hook.) Macbr.
|
|
rose, Cherokee
|
ROSLA
|
Rosaceae
|
Rosa
|
laevigata Michx.
|
|
rose, Macartney
|
ROSBC
|
Rosaceae
|
Rosa
|
bracteata J.C.Wendl
|
|
rose, Scotch
|
ROSPP
|
Rosaceae
|
Rosa
|
pimpinellifolia L.
|
|
rose, Virginia
|
ROSVI
|
Rosaceae
|
Rosa
|
virginiana Mill.
|
|
rose, cinnamon
|
ROSMJ
|
Rosaceae
|
Rosa
|
majalis Herrm.
|
|
rose, dog
|
ROSCN
|
Rosaceae
|
Rosa
|
canina L.
|
|
rose, multiflora
|
ROSMU
|
Rosaceae
|
Rosa
|
multiflora Thunb. ex Murr.
|
|
rose, prairie wild
|
ROSAK
|
Rosaceae
|
Rosa
|
arkansana Porter
|
|
rose, prickly
|
ROSAC
|
Rosaceae
|
Rosa
|
acicularis Lindl.
|
|
rose, rugosa
|
ROSRG
|
Rosaceae
|
Rosa
|
rugosa Thunb.
|
|
rose, sweetbriar
|
ROSRB
|
Rosaceae
|
Rosa
|
rubiginosa L.
|
|
rosinweed
|
SIPSS
|
Compositae
|
Silphium
|
sp.
|
|
rosinweed, showy
|
SIPSP
|
Compositae
|
Silphium
|
asperrimum Hook.
|
|
rosinweed, wholeleaf
|
SIPIN
|
Compositae
|
Silphium
|
integrifolium Michx.
|
|
rubberweed, bitter
|
HYXOD
|
Compositae
|
Hymenoxys
|
odorata DC.
|
|
rue, African
|
PEGHA
|
Zygophyllaceae
|
Peganum
|
harmala L.
|
|
rue, common
|
RUAGR
|
Rutaceae
|
Ruta
|
graveolens L.
|
|
rush
|
IUNSS
|
Juncaceae
|
Juncus
|
sp.
|
|
rush (flowering)
|
IUNSS
|
Juncaceae
|
Juncus
|
sp.
|
|
rush, Baltic
|
IUNBA
|
Juncaceae
|
Juncus
|
balticus Willd.
|
|
rush, needle
|
IUNRO
|
Juncaceae
|
Juncus
|
roemerianus Scheele
|
|
rush, slender
|
IUNTE
|
Juncaceae
|
Juncus
|
tenuis Willd.
|
|
rush, soft
|
IUNEF
|
Juncaceae
|
Juncus
|
effusus L.
|
|
rush, toad
|
IUNBU
|
Juncaceae
|
Juncus
|
bufonius L.
|
|
rush, tufted
|
IUNAN
|
Juncaceae
|
Juncus
|
acuminatus Michx.
|
|
rustweed
|
POEPR
|
Loganiaceae
|
Polypremum
|
procumbens L.
|
|
rye (volunteer)
|
SECCE
|
Gramineae
|
Secale
|
cereale L.
|
|
ryegrass
|
LOLSS
|
Gramineae
|
Lolium
|
sp.
|
|
ryegrass, Italian
|
LOLMU
|
Gramineae
|
Lolium
|
multiflorum Lam.
|
|
ryegrass, hardy
|
LOLRE
|
Gramineae
|
Lolium
|
remotum L.
|
|
ryegrass, perennial
|
LOLPE
|
Gramineae
|
Lolium
|
perenne L.
|
|
ryegrass, poison
|
LOLTE
|
Gramineae
|
Lolium
|
temulentum L.
|
|
ryegrass, rigid
|
LOLRI
|
Gramineae
|
Lolium
|
rigidum Gaudin
|