|
Weed Name |
Bayer Code
|
Family |
Genus |
Species |
|
oak
|
QUESS
|
Fagaceae
|
Quercus
|
sp.
|
|
oak, Gambel
|
QUEGA
|
Fagaceae
|
Quercus
|
gambelii Nutt.
|
|
oak, Pacific poison
|
RHUDI
|
Anacardiaceae
|
Toxicodendron
|
diversilobum (T. & G.) Greene
|
|
oak, black
|
QUEVE
|
Fagaceae
|
Quercus
|
velutina Lam.
|
|
oak, blackjack
|
QUEMR
|
Fagaceae
|
Quercus
|
marilandica Muenchh.
|
|
oak, bluejack
|
QUEIN
|
Fagaceae
|
Quercus
|
incana Bartr.
|
|
oak, chestnut
|
QUEPR
|
Fagaceae
|
Quercus
|
montana Willd.
|
|
oak, dwarf live
|
QUEMN
|
Fagaceae
|
Quercus
|
minima (Sarg.) Small
|
|
oak, laurel
|
QUELF
|
Fagaceae
|
Quercus
|
laurifolia Michx.
|
|
oak, live
|
QUEVI
|
Fagaceae
|
Quercus
|
virginiana Mill.
|
|
oak, myrtle
|
QUEMT
|
Fagaceae
|
Quercus
|
myrtifolia Willd.
|
|
oak, northern pin
|
QUEEL
|
Fagaceae
|
Quercus
|
ellipsoidalis E.J.Hill
|
|
oak, northern red
|
QUERU
|
Fagaceae
|
Quercus
|
rubra L.
|
|
oak, pin
|
QUEPA
|
Fagaceae
|
Quercus
|
palustris Muenchh.
|
|
oak, plateau
|
QUEVF
|
Fagaceae
|
Quercus
|
virginiana var. fusiformis (Small) Sarg.
|
|
oak, poison
|
TOXQU
|
Anacardiaceae
|
Toxicodendron
|
toxicarium (Salisb.) Gillis
|
|
oak, post
|
QUESL
|
Fagaceae
|
Quercus
|
stellata Wangenh.
|
|
oak, running
|
QUEPM
|
Fagaceae
|
Quercus
|
pumila Walt.
|
|
oak, scarlet
|
QUECO
|
Fagaceae
|
Quercus
|
coccinea Muenchh.
|
|
oak, scrub live
|
QUEVM
|
Fagaceae
|
Quercus
|
geminata Small
|
|
oak, shinnery
|
QUEHV
|
Fagaceae
|
Quercus
|
havardii Rydb.
|
|
oak, southern red
|
QUEFC
|
Fagaceae
|
Quercus
|
falcata Michx.
|
|
oak, turbinella
|
QUETB
|
Fagaceae
|
Quercus
|
turbinella Greene
|
|
oak, turkey
|
QUELA
|
Fagaceae
|
Quercus
|
laevis Walt.
|
|
oak, water
|
QUENI
|
Fagaceae
|
Quercus
|
nigra L.
|
|
oak, white
|
QUEAL
|
Fagaceae
|
Quercus
|
alba L.
|
|
oak, willow
|
QUEPH
|
Fagaceae
|
Quercus
|
phellos L.
|
|
oat (volunteer)
|
AVESA
|
Gramineae
|
Avena
|
sativa L.
|
|
oat, slender
|
AVEBA
|
Gramineae
|
Avena
|
barbata J.F.Pott ex Link
|
|
oat, sterile
|
AVEST
|
Gramineae
|
Avena
|
sterilis L.
|
|
oat, wild
|
AVEFA
|
Gramineae
|
Avena
|
fatua L.
|
|
oat, winter wild
|
AVELU
|
Gramineae
|
Avena
|
ludoviciana Durieu
|
|
oatgrass, poverty
|
DANSP
|
Gramineae
|
Danthonia
|
spicata (L.) Beauv. ex R. & S.
|
|
oatgrass, tall
|
ARREL
|
Gramineae
|
Arrhenatherum
|
elatius (L.) Beauv. ex J. & C. Presl
|
|
oats
|
AVESA
|
Gramineae
|
Avena
|
sativa L.
|
|
okra
|
ABMES
|
Malvaceae
|
Abelmoschus
|
esculentus (L.) Moench
|
|
old-plainsman
|
HYYSC
|
Compositae
|
Hymenopappus
|
scabiosaeus var. corymbosus (T. & G.) B.L.Turner
|
|
olive, Russian
|
ELGAN
|
Elaeagnaceae
|
Elaeagnus
|
angustifolia L.
|
|
olive, autumn
|
ELGUM
|
Elaeagnaceae
|
Elaeagnus
|
umbellata Thunb.
|
|
onion, wild
|
ALLCA
|
Liliaceae
|
Allium
|
canadense L.
|
|
oniongrass
|
ROMLO
|
Iridaceae
|
Romulea
|
longifolia (Salisb.) Baker
|
|
onionweed
|
ASHFI
|
Liliaceae
|
Asphodelus
|
tenuifolius Cav.
|
|
orach, garden
|
ATXHO
|
Chenopodiaceae
|
Atriplex
|
hortensis L.
|
|
orach, halberdleaf
|
ATXHA
|
Chenopodiaceae
|
Atriplex
|
patula var. hastata (L.) Gray
|
|
orach, red
|
ATXRO
|
Chenopodiaceae
|
Atriplex
|
rosea L.
|
|
orach, spreading
|
ATXPA
|
Chenopodiaceae
|
Atriplex
|
patula L.
|
|
orchardgrass
|
DACGL
|
Gramineae
|
Dactylis
|
glomerata L.
|
|
orchardgrass (seedling)
|
DACGL
|
Gramineae
|
Dactylis
|
glomerata L.
|
|
osage, orange
|
MACPO
|
Moraceae
|
Maclura
|
pomifera (Raf.) Schneid.
|
|
osier
|
SAXVI
|
Salicaceae
|
Salix
|
viminalis L.
|
|
oxalis
|
OXASS
|
Oxalidaceae
|
Oxalis
|
sp.
|
|
oxalis, buttercup
|
OXAPC
|
Oxalidaceae
|
Oxalis
|
pes-caprae L.
|
|
oxeye
|
HEFHE
|
Compositae
|
Heliopsis
|
helianthoides (L.) Sweet
|
|
oxtongue
|
PICSS
|
Compositae
|
Picris
|
sp.
|
|
oxtongue, bristly
|
PICEC
|
Compositae
|
Picris
|
echioides L.
|
|
oxtongue, hawkweed
|
PICHI
|
Compositae
|
Picris
|
hieracioides L.
|