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Invasive Weeds of Western U.S., WSWS

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 NRCS Invasive Species policy
 Invasive Species Executive Order 13112
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Whitson, T.D. (Ed.) et al.. 1996. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming.. 630 pp.
 


Symbol Scientific Name Nativity
in US
Common Name

ABTH Abutilon theophrasti Introduced
velvetleaf
butterprint
Indian mallow
buttonweed
ACMIO Achillea millefolium var. occidentalis Native
ACLA5 Achillea lanulosa
western yarrow
ACRE3 Acroptilon repens Introduced
CERE6 Centaurea repens
Russian knapweed
hardheads
AECY Aegilops cylindrica Introduced
jointed goatgrass
jointgrass
AGGI Agrostemma githago Introduced
corn cockle
cockle
purple cockle
common corncockle
AGST2 Agrostis stolonifera Native
redtop
creeping bentgrass
seaside bentgrass
redtop bent
ALMA12 Alhagi maurorum Introduced
ALCA Alhagi camelorum
camelthorn
ALPS3 Alhagi pseudalhagi
camelthorn
ALTE Allium textile Native
prairie onion
textile onion
ALMY Alopecurus myosuroides Introduced
blackgrass
slender foxtail
ALPU3 Alternanthera pungens Native
creeping chaffweed
khakiweed
ALAL3 Alyssum alyssoides Introduced
yellow alyssum
pale madwort
AMAL Amaranthus albus Native
tumble pigweed
tumbleweed
white pigweed
AMBL Amaranthus blitoides Introduced
prostrate pigweed
mat amaranth
AMPA Amaranthus palmeri Native
Palmer amaranth
carelessweed
AMRE Amaranthus retroflexus Introduced
redroot pigweed
rough pigweed
careless weed
AMAC2 Ambrosia acanthicarpa Native
annual bursage
flatspine burr ragweed
AMAR2 Ambrosia artemisiifolia Native
common ragweed
annual ragweed
low ragweed
short ragweed
small ragweed
Roman wormwood
AMGR5 Ambrosia grayi Native
woollyleaf bursage
bur ragweed
woollyleaf povertyweed
woollyleaf franseria
lagoonweed
woollyleaf burr ragweed
AMTO3 Ambrosia tomentosa Native
skeletonleaf bursage
AMTR Ambrosia trifida Native
giant ragweed
great ragweed
horseweed
AMMEI2 Amsinckia menziesii var. intermedia Native
AMIN3 Amsinckia intermedia
coast fiddleneck
fiddleneck
common fiddleneck
ANCR2 Anoda cristata Native
spurred anoda
ANCO2 Anthemis cotula Introduced
mayweed chamomile
dog fennel
stinkweed
mayweed
ANSY Anthriscus sylvestris Introduced
wild chervil
cow parsley
keck
bur chervil
APAN2 Apocynum androsaemifolium Native
spreading dogbane
bitterroot
flytrap dogbane
APCA Apocynum cannabinum Native
dogbane
hemp dogbane
Indian hemp
common dogbane
ARMI2 Arctium minus Introduced
common burdock
bardane
lesser burdock
wild burdock
wild rhubarb
beggar's button
ARPO2 Argemone polyanthemos Native
bluestem pricklepoppy
annual pricklepoppy
thistle poppy
ARELB Arrhenatherum elatius var. bulbosum Introduced
tuber oatgrass
tall oatgrass
ARBI2 Artemisia biennis Native and Introduced
biennial wormwood
ARCA12 Artemisia campestris Native
common sagewort
field sagewort
ARCA13 Artemisia cana Native
silver sagebrush
ARFI2 Artemisia filifolia Native
sand sagebrush
sandhill sage
silvery wormwood
ARFR4 Artemisia frigida Native
fringed sagebrush
fringed sagewort
prairie sagewort
ARTR2 Artemisia tridentata Native
big sagebrush
ASFA Asclepias fascicularis Native
Mexican whorled milkweed
narrowleaf milkweed
ASIN Asclepias incarnata Native
swamp milkweed
rose milkweed
ASLA Asclepias labriformis Native
labriform milkweed
Jones milkweed
Utah milkweed
ASSP Asclepias speciosa Native
showy milkweed
ASSU2 Asclepias subverticillata Native
western whorled milkweed
horsetail milkweed
poison milkweed
whorled milkweed
ASBI2 Astragalus bisulcatus Native
twogrooved milkvetch
AVFA Avena fatua Introduced
flaxgrass
wheat oats
wild oats
oatgrass
BAOR Barbarea orthoceras Native
wintercress
American yellowrocket
BEPE2 Bellis perennis Introduced
European daisy
lawn daisy
English daisy
BICE Bidens cernua Native
nodding beggarticks
bur marigold
sticktight
nodding bur marigold
BRNI Brassica nigra Introduced
black mustard
shortpod mustard
BRRA Brassica rapa Introduced
birdsrape mustard
wild mustard
wild turnip
wild rutabaga
bird's rape
field mustard
BRCA5 Bromus carinatus Native
California brome
mountain brome
BRCA6 Bromus catharticus Introduced
rescue brome
rescue grass
BRHOH Bromus hordeaceus ssp. hordeaceus Introduced
BRMO2 Bromus mollis
soft brome
soft cheat
soft chess
BRJA Bromus japonicus Introduced
Japanese bromegrass
Japanese chess
BRRI8 Bromus rigidus Introduced
ripgut brome
BRSE Bromus secalinus Introduced
rye brome
chess
bromegrass
cheat
BRTE Bromus tectorum Introduced
downy brome
cheatgrass
early chess
thatch bromegrass
military grass
BUAR3 Buglossoides arvensis Introduced
LIAR4 Lithospermum arvense
corn gromwell
puccoon
CACI2 Calandrinia ciliata Native
redmaids
desert rockpurslane
fringed redmaids
CASE13 Calystegia sepium Native and Introduced
hedge bindweed
wild morning glory
bearbind
devil's guts
hedgebell
old man's night cap
CAMI2 Camelina microcarpa Introduced
smallseed falseflax
false flax
littleseed falseflax
small fruited falseflax
littlepod false flax
CARA Campanula rapunculoides Introduced
creeping bellflower
rover bellflower
rapion bellflower
CASA3 Cannabis sativa Introduced
marijuana
hemp
Mary Jane
grass
hashish
pot
CABU2 Capsella bursa-pastoris Introduced
shepardspurse
CADR Cardaria draba Introduced
whitetop
hoary cress
globed-podded hoarycress
whiteweed
peppergrass
CAAC Carduus acanthoides Introduced
plumeless thistle
spiny plumeless thistle
CANU4 Carduus nutans Introduced
nodding plumeless thistle
nodding thistle
musk thistle
plumeless thistle
chardon penche
CAPY2 Carduus pycnocephalus Introduced
Italian thistle
compact-headed thistle
CALA20 Carthamus lanatus Introduced
woolly distaff thistle
saffron thistle
distaff thistle
CACA19 Carum carvi Introduced
wild caraway
caraway
CELO3 Cenchrus longispinus Native
mat sandbur
longspine sandbur
field sandbur
burgrass
CEBI2 Centaurea biebersteinii Introduced
CEMA4 Centaurea maculosa
spotted knapweed
CECY2 Centaurea cyanus Introduced
garden cornflower
bachelor's button
cornflower
CEDET Centaurea debeauxii ssp. thuillieri Introduced
CEPR2 Centaurea pratensis
meadow knapweed
CEDI3 Centaurea diffusa Introduced
diffuse knapweed
CEIB Centaurea iberica Introduced
Iberian star thistle
CESO3 Centaurea solstitialis Introduced
yellow starthistle
CETR8 Centaurea triumfettii Introduced
CEVIS Centaurea virgata var. squarrosa
squarrose knapweed
CETE5 Ceratocephala testiculata Introduced
RATE Ranunculus testiculatus
bur buttercup
little bur
testiculate buttercup
curveseed butterwort
CHGL13 Chamaesyce glyptosperma Native
EUGL3 Euphorbia glyptosperma
ridgeseed spurge
ribseed sandmat
CHANA2 Chamerion angustifolium ssp. angustifolium Native
EPAN2 Epilobium angustifolium
fireweed
blooming sally
CHBE4 Chenopodium berlandieri Native
netseed lambsquarters
pitseed goosefoot
CHMU2 Chenopodium murale Introduced
nettleleaf goosefoot
CHJU Chondrilla juncea Introduced
rush skeletonweed
CHTE2 Chorispora tenella Introduced
blue mustard
purple mustard
tenella mustard
crossflower
chorispora
beanpodded mustard
CHVI8 Chrysothamnus viscidiflorus Native
Douglas rabbitbrush
green rabbitbrush
yellow rabbitbrush
CIIN Cichorium intybus Introduced
chicory
coffeeweed
blue sailors
succory
CIDO Cicuta douglasii Native
western water hemlock
water hemlock
CIAR4 Cirsium arvense Introduced
Canada thistle
creeping thistle
field thistle
Californian thistle
CICA11 Cirsium canescens Native
Platte thistle
prairie thistle
CIFO Cirsium foliosum Native
leafy thistle
elk thistle
Drummond's thistle
meadow thistle
CIOC2 Cirsium ochrocentrum Native
yellowspine thistle
CIUN Cirsium undulatum Native
wavyleaf thistle
gray thistle
CIVU Cirsium vulgare Introduced
bull thistle
common thistle
spear thistle
CLPEP Claytonia perfoliata ssp. perfoliata Native
MOPE3 Montia perfoliata
miner's lettuce
CLSE Cleome serrulata Native
Rocky Mountain beeplant
bee spiderflower
COGR9 Coccinia grandis Introduced
ivy gourd
scarlet-fruited gourd
COMA2 Conium maculatum Introduced
poison hemlock
cigue maculee
deadly hemlock
poison parsley
cigue tachetee
COAR4 Convolvulus arvensis Introduced
field bindweed
European bindweed
creeping jenny
smallflowered morning glory
perennial morningglory
morningglory
COBO Conyza bonariensis Introduced
hairy fleabane
asthmaweed
flaxleaved fleabane
COCA5 Conyza canadensis Native
horseweed
mares tail
horseweed fleabane
CRSE2 Crepis setosa Introduced
bristly hawksbeard
rough hawksbeard
CRSE11 Croton setigerus Native
ERSE3 Eremocarpus setigerus
turkey mullein
doveweed
CRVU2 Crupina vulgaris Introduced
common crupina
bearded creeper
CUPEP2 Cuscuta pentagona var. pentagona Native
CUCA2 Cuscuta campestris
field dodder
CYDA Cynodon dactylon Introduced
Bermudagrass
devilgrass
grama-seda
chiendent pied-de-poule
motie molulu
manienie
CYOF Cynoglossum officinale Introduced
houndstongue
CYES Cyperus esculentus Native and Introduced
yellow nutsedge
yellow nutgrass
CYRO Cyperus rotundus Introduced
purple nutsedge
nutgrass
kili'o'opu
cocograss
chaguan humatag
pakopako
CYSC4 Cytisus scoparius Introduced
Scotch broom
English broom
DAIN5 Datura innoxia Cultivated, or not in the U.S.
sacred datura
desert thornapple
angel's trumpet
DAST Datura stramonium Introduced
jimsonweed
Jamestown weed
thorn apple
mad apple
stinkwort
moonflower
DACA6 Daucus carota Introduced
wild carrot
Queen Anne's lace
bird's nest
DEGE2 Delphinium geyeri Native
Geyer larkspur
DENU2 Delphinium nuttallianum Native
low larkspur
Nuttall's larkspur
twolobe larkspur
DEOC Delphinium �occidentale Native
duncecap larkspur
DESO2 Descurainia sophia Introduced
flixweed
pinnate tansymustard
DIPU Digitalis purpurea Introduced
purple foxglove
DISA Digitaria sanguinalis Native
hairy crabgrass
large crabgrass
purple crabgrass
DIFU2 Dipsacus fullonum Introduced
common teasel
Fuller's teasel
teasel
DISP Distichlis spicata Native
desert saltgrass
seashore saltgrass
marsh spikegrass
saltgrass
inland saltgrass
ECCO2 Echinochloa colona Introduced
junglerice
watergrass
ECCR Echinochloa crus-galli Introduced
barnyard grass
Japanese millet
watergrass
cockspur
EGDE Egeria densa Introduced
South American waterweed
Brazilian e
State
State
ELAN Elaeagnus angustifolia Introduced
Russian olive
oleaster
ELIN3 Eleusine indica Introduced
Indian goosegrass
wiregrass
manienie ali'I
goosegrass
silver crabgrass
crowsfoot grass
ELRE4 Elymus repens Introduced
ELRE3 Elytrigia repens
quackgrass
twitch
couchgrass
quickgrass
scutch
quitch
EQAR Equisetum arvense Native
western horsetail
field horsetail
scouring rush
EQLA Equisetum laevigatum Native
smooth scouringrush
smooth horsetail
ERCI Eragrostis cilianensis Introduced
strongscented lovegrass
stinkgrass
lovegrass
candy grass
ERNAN5 Ericameria nauseosa ssp. nauseosa var. nauseosa Native
CHNA2 Chrysothamnus nauseosus
gray rabbitbrush
ERACA Eriochloa acuminata var. acuminata Native
ERGR4 Eriochloa gracilis
southwestern cupgrass
tapertip cupgrass
ERCI6 Erodium cicutarium Introduced
stork's bill
filaree
alfilaree
alfilaria
redstem filaree
EUDE4 Euphorbia dentata Native and Introduced
toothed spurge
toothedleaf poinsettia
EUES Euphorbia esula Introduced
leafy spurge
spurge
GAOF Galega officinalis Introduced
goat's rue
GAAP2 Galium aparine Native
cleavers
bedstraw
white hedge
cleaverwort
scarthgrass
catchweed bedstraw
GAMO5 Gaura mollis Native
GAPA6 Gaura parviflora
velvety gaura
willow gaura
smallflowered gaura
velvetweed
GLLE3 Glycyrrhiza lepidota Native
licorice
American licorice
wild licorice
GNPA Gnaphalium palustre Native
lowland cudweed
western marsh cudweed
GRSQ Grindelia squarrosa Native
gumweed
curlycup gumweed
rosinweed
tarweed
curlytop gumweed
GUSA2 Gutierrezia sarothrae Native
broom snakeweed
broomweed
turpentine weed
yellow top
stinkweed
perennial snakeweed
GYPA Gypsophila paniculata Introduced
baby's breath
bachelor's button
HAGL Halogeton glomeratus Introduced
halogeton
barilla
HEAN3 Helianthus annuus Native
common sunflower
annual sunflower
sunflower
wild sunflower
HECI Helianthus ciliaris Native
yerba parda
blueweed
Texas blueweed
HENU Helianthus nuttallii Native
Nuttall sunflower
HEPU5 Hemizonia pungens Native
spikeweed
HEMA80 Heracleum maximum Native
HELA4 Heracleum lanatum
cow parsnip
common cowparsnip
HESU3 Heterotheca subaxillaris Native
camphorweed
golden aster
HITR Hibiscus trionum Introduced
Venice mallow
bladder ketmia
flower-of-an-hour
rosemallow
HIAU Hieracium aurantiacum Introduced
orange hawkweed
HOGL2 Hoffmannseggia glauca Native
hog potato
pignut
HOLA Holcus lanatus Introduced
common velvetgrass
velvetgrass
Yorkshire fog
HOJU Hordeum jubatum Native
foxtail barley
HOMUL Hordeum murinum ssp. leporinum Introduced
HOLE Hordeum leporinum
hare barley
wild barley
leporinum barley
HYNI Hyoscyamus niger Introduced
black henbane
HYPE Hypericum perforatum Introduced
common St. John's wort
St. John's wort
Klamathweed
HYRA3 Hypochaeris radicata Introduced
common cat's-ear
spotted catsear
frogbit
hairy cat's ear
gosmore
false dandelion
IPCO3 Ipomoea coccinea Introduced
wooly tidestromia
scarlet morningglory
starglory
Mexican morningglory
redstar
red morningglory
IPHE Ipomoea hederacea Introduced
ivyleaf morningglory
entireleaf morningglory
Mexican morningglory
IPPU2 Ipomoea purpurea Introduced
tall morningglory
common morningglory
IRMI Iris missouriensis Native
Rocky Mountain iris
wild iris
ISTI Isatis tinctoria Introduced
Dyer's woad
IVAX Iva axillaris Native
poverty weed
Iva poverty weed
poverty sumpweed
mouseear pvertyweed
lesser marshelder
smallflowered marshelder
IVXA Iva xanthifolia Native
marshelder
burweed marshelder
horseweed
false ragweed
giant marshelder
JUBU Juncus bufonius Native
toad rush
KIEL Kickxia elatine Introduced
sharppoint fluvellin
cancerwort
fluvellin
roundleaf fluvellin
sharpleaf cancerwort
KOSC Kochia scoparia Introduced
kochia
fireweed
Mexican burningbush
Mexican fireweed
summer cypress
mock cypress
LASE Lactuca serriola Introduced
prickly lettuce
China lettuce
wild lettuce
LATAP Lactuca tatarica var. pulchella Native
LAPU Lactuca pulchella
blue lettuce
LAAM Lamium amplexicaule Introduced
henbit
LAPU2 Lamium purpureum Introduced
purple deadnettle
red deadnettle
LAOC3 Lappula occidentalis Native
western sticktight
flatspine stickseed
LACO3 Lapsana communis Introduced
nipplewort
common nipplewort
LATR2 Larrea tridentata Native
creosotebush
LALA4 Lathyrus latifolius Introduced
everlasting peavine
perennial peavine
perennial pea
LELA2 Lepidium latifolium Introduced
perennial pepperweed
broadleaved peppergrass
tall whitetop
Virginia pepperweed
LEPE2 Lepidium perfoliatum Introduced
clasping pepperweed
LEFUU Leptochloa fusca ssp. uninervia Native
LEUN2 Leptochloa uninervia
Mexican sprangletop
LEVU Leucanthemum vulgare Introduced
CHLE80 Chrysanthemum leucanthemum
oxeye daisy
LIDAD Linaria dalmatica ssp. dalmatica Introduced
LIGED Linaria genistifolia ssp. dalmatica
Dalmatian toadflax
LIVU2 Linaria vulgaris Introduced
yellow toadflax
butter and eggs
ramsted
flaxweed
wild snapdragon
Jacob's ladder
LOAR10 Lolium arundinaceum Introduced
FEAR3 Festuca arundinacea
tall fescue
Alta fescue
reed fescue
coarse fescue
LOPEM2 Lolium perenne ssp. multiflorum Introduced
LOMU Lolium multiflorum
Italian ryegrass
annual ryegrass
LUWY Lupinus wyethii Native
Wyeth lupine
LYJU Lygodesmia juncea Native
skeletonweed
rush skeletonplant
rush skeletonweed
LYSA2 Lythrum salicaria Introduced
purple loosestrife
spiked loosestrife
rainbow weed
salicaire
purple lythrum
MACA2 Machaeranthera canescens Native
purple aster
hoary tansyaster
MASA Madia sativa Native
coast tarweed
tarweed
Chilean tarweed
MANE Malva neglecta Introduced
common mallow
buttonweed
cheeseplant
cheeseweed
MALE3 Malvella leprosa Native
SIHE8 Sida hederacea
alkali sida
dollar weed
alkali mallow
MAOR3 Marah oreganus Native
western wildcucumber
coastal manroot
MAVU Marrubium vulgare Introduced
horehound
white horehound
MADI6 Matricaria discoidea Introduced
MAMA11 Matricaria matricarioides
pineappleweed
disc mayweed
MELU Medicago lupulina Introduced
hop medic
nonesuch
black medic
yellow trefoil
hop clover
MEOF Melilotus officinalis Introduced
yellow sweetclover
MIOR Misopates orontium Introduced
ANOR2 Antirrhinum orontium
lesser snapdragon
linearleaf snapdragon
ONAC Onopordum acanthium Introduced
Scotch cotton thistle
heraldic thistle
cotton thistle
Scotch thistle
OPPO Opuntia polyacantha Native
plains pricklypear
OXCO Oxalis corniculata Native
creeping oxalis
creeping woods
oxalis
yellow wood sorrel
yellow oxalis
'ihi
OXSE Oxytropis sericea Native
silky crazyweed
locoweed
white locoweed
PACA6 Panicum capillare Native
witches hair
tumble panic
witchgrass
ticklegrass
panicgrass
tumbleweed grass
PADI Panicum dichotomiflorum Native
fall panicum
western witchgrass
PAMI2 Panicum miliaceum Introduced
wild proso millet
blackseeded proso millet
panic millet
proso
broomcorn millet
wild millet
PADI3 Paspalum dilatatum Introduced
dallis grass
water grass
hiku nua
palpalum dilate
herbe sirop
herbe de miel
PEHA Peganum harmala Introduced
African rue
Syrian rue
harmal shrub
isband
ozallaik
steppenraute
PECL2 Pennisetum clandestinum Introduced
Kikuyu grass
PEGL2 Pennisetum glaucum Introduced
SEGL2 Setaria glauca
yellow foxtail
pigeongrass
yellow bristlegrass
wild millet
pearl millet
PHAR3 Phalaris arundinacea Native
reed canarygrass
canary grass
PHMI3 Phalaris minor Introduced
littleseed canarygrass
canarygrass
PHAC6 Physalis acutifolia Native
PHWR3 Physalis wrightii
Wright groundcherry
sharpleaf groundcherry
PHVI5 Physalis virginiana Native
Virginia groundcherry
lanceleaf groundcherry
PLLA Plantago lanceolata Introduced
ribwort
buckhorn plantain
narrowleaf plantain
English plantain
lanceleaf plantain
ribgrass
PLMA2 Plantago major Native
broadleaf plantain
common plantain
rippleseed plantain
buckhorn plantain
PLPA2 Plantago patagonica Native
woolly plantain
woolly Indianwheat
POAN Poa annua Introduced
walkgrass
annual bluegrass
POBU Poa bulbosa Introduced
bulbous bluegrass
POAV Polygonum aviculare Introduced
prostrate knotweed
POCO10 Polygonum convolvulus Introduced
wild buckwheat
climbing buckwheat
dullseed cornbind
black bindweed
cornbind
POCU6 Polygonum cuspidatum Introduced
Japanese knotweed
Japanese bamboo
fleeceflower
POER2 Polygonum erectum Native
erect knotweed
devil's shoestring
wireweed
POLA4 Polygonum lapathifolium Native
pale smartweed
curltop ladysthumb
curlytop knotweed
POPE3 Polygonum persicaria Probably Introduced
lady's thumb
smartweed
ladysthumb smartweed
POMO5 Polypogon monspeliensis Introduced
rabbitfootgrass
rabbitfoot polypogon
POOL Portulaca oleracea Native
common purslane
wild portulaca
pusley
pursley
duckweed
akulikuli-kula
PORE5 Potentilla recta Introduced
sulfur cinquefoil
roughfruit cinquefoil
PRGL2 Prosopis glandulosa Native
honey mesquite
PTAQP2 Pteridium aquilinum var. pubescens Native
bracken
eagle fern
bracken fern
western bracken
RAAC3 Ranunculus acris Native and Introduced
tall buttercup
meadow buttercup
RARE3 Ranunculus repens Introduced
creeping buttercup
RASA2 Raphanus sativus Introduced
radish
cultivated radish
RICO3 Ricinus communis Introduced
castor bean
agaliya
maskerekur
uluchula skoki
toto ni vavalagi
lama palagi
RUAC3 Rumex acetosella Introduced
sheep sorrel
red sorrel
field sorrel
RUCR Rumex crispus Introduced
curly dock
sour dock
yellow dock
narrowleaf dock
SATR12 Salsola tragus Introduced
SAIB Salsola iberica
Russian thistle
tumbleweed
tumbling thistle
prickly Russian thistle
SAAE Salvia aethiopis Introduced
Mediterranean sage
African sage
SARE3 Salvia reflexa Native
lanceleaf sage
lambsleaf sage
Rocky Mountain sage
blue sage
sage mint
SAOF4 Saponaria officinalis Introduced
bouncing bet
soapwort
sweet Betty
SAVE4 Sarcobatus vermiculatus Native
greasewood
SCDU2 Sclerochloa dura Introduced
hardgrass
tufted hardgrass
common hardgrass
SECE Secale cereale Introduced
cereal rye
common rye
SEJA Senecio jacobaea Introduced
tansy ragwort
ragwort
SERI2 Senecio riddellii Native
Riddell groundsel
Riddell ragwort
SEVU Senecio vulgaris Introduced
common groundsel
ragwort
SEVE3 Setaria verticillata Introduced
bristly foxtail
bur bristlegrass
hooked bristlegrass
SICO4 Silene conoidea Introduced
cone catchfly
weed silene
SILAA3 Silene latifolia ssp. alba Introduced
SIAL12 Silene alba
white campion
white cockle
bladder campion
SIVU Silene vulgaris Introduced
bladder campion
cowbell
rattleweed
maiden's tears
SIMA3 Silybum marianum Introduced
milk thistle
variegated thistle
spotted thistle
blessed milkthistle
SIAR4 Sinapis arvensis Introduced
BRKA Brassica kaber
wild mustard
canola
rapeseed
charlock mustard
kaber mustard
SIAL2 Sisymbrium altissimum Introduced
Jim Hill mustard
tumbleweed mustard
tumble mustard
tall mustard
SIIR Sisymbrium irio Introduced
London rocket
SODU Solanum dulcamara Introduced
bitter nightshade
European bittersweet
blue nightshade
woody nightshade
bittersweet nightshade
fellenwort
SOEL Solanum elaeagnifolium Native
silverleaf nightshade
trompillo
white horsenettle
tomato weed
SONI Solanum nigrum Introduced
deadly nightshade
black nightshade
garden nightshade
SOPH Solanum physalifolium Native
SOSA8 Solanum sarrachoides
hairy nightshade
hoe nightshade
SORO Solanum rostratum Native
buffalobur nightshade
Texas thistle
Mexican thistle
buffalobur
Colorado bur
Kansas thistle
SOTO4 Solanum torvum Native
turkeyberry
prickly solanum
devil's fig
fausse aubergine
kausoni
bhankatiya
SOTR Solanum triflorum Native
cutleaf nightshade
SOCA6 Solidago canadensis Native
Canada goldenrod
common goldenrod
SOAR2 Sonchus arvensis Introduced
perennial sowthistle
creeping sowthistle
field sowthistle
SOARU Sonchus arvensis ssp. uliginosus Introduced
marsh sowthistle
moist sowthistle
SOAS Sonchus asper Introduced
spiny sowthistle
perennial sowthistle
prickly sowthistle
SOOL Sonchus oleraceus Introduced
annual sowthistle
sow thistle
pualele
SOHA Sorghum halepense Introduced
Johnsongrass
aleppo milletgrass
sorgo de alepo
zacate Johnson
sorgho d'Alep
herbe de Cuba
SPAR Spergula arvensis Introduced
corn spurry
devil's gut
pickpurse
sandweed
SPCO Sphaeralcea coccinea Native
scarlet globemallow
red falsemallow
copper mallow
SPSA3 Sphaerophysa salsula Introduced
Austrian peaweed
Swainsonpea
STME2 Stellaria media Introduced
common chickweed
TACA8 Taeniatherum caput-medusae Introduced
medusahead rye
medusahead
TARA Tamarix ramosissima Introduced
saltcedar
tamarisk
tamarix
TAVU Tanacetum vulgare Introduced
common tansy
garden tansy
TAOF Taraxacum officinale Native and Introduced
dandelion
blowball
faceclock
common dandelion
TECA2 Tetradymia canescens Native
spineless horsebrush
gray horsebrush
THRH Thermopsis rhombifolia Native
goldenpea
prairie thermopsis
THAR5 Thlaspi arvense Introduced
stinkweed
fanweed
pennycress
Frenchweed
field pennycress
TORA2 Toxicodendron radicans Native
Eastern poison ivy
poison ivy
TRDU Tragopogon dubius Introduced
goat's beard
salsifis majeur
Western goat's beard
yellow goat's beard
western salsify
wild oysterplant
TRTE Tribulus terrestris Introduced
bullhead
goathead
puncturevine
Mexican sandbur
Texas sandbur
caltrop
TRMA4 Triglochin maritimum Native
seaside arrowgrass
arrowgrass
TYLA Typha latifolia Native
broadleaf cattail
cattail
common cattail
ULEU Ulex europaeus Introduced
gorse
furze
whin
URDI Urtica dioica Native and Introduced
stinging nettle
tall nettle
slender nettle
California nettle
VAHI2 Vaccaria hispanica Introduced
VAPY Vaccaria pyramidata
cowcockle
cowherb
cow soapwort
VEDU Ventenata dubia Introduced
ventenata
North Africa grass
VECA2 Veratrum californicum Native
California false hellebore
VEBL Verbascum blattaria Introduced
moth mullein
VETH Verbascum thapsus Introduced
common mullein
woolly mullein
flannel plant
velvet plant
big taper
velvet dock
VEBR Verbena bracteata Native
prostrate vervain
bracted vervain
bigbract verbena
VEHA2 Verbena hastata Native
blue vervain
swamp verbena
VEBI2 Veronica biloba Introduced
bilobed speedwell
twolobed speedwell
VEPE2 Veronica peregrina Native
purslane speedwell
neckweed
VEPE3 Veronica persica Introduced
Persian speedwell
birdeye speedwell
winter speedwell
VIVI Vicia villosa Introduced
hairy vetch
woolly vetch
winter vetch
VIAR Viola arvensis Introduced
field violet
European field pansy
wild pansy
VUMY Vulpia myuros Introduced
rat-tailed fescue
XASP2 Xanthium spinosum Introduced
spiny cocklebur
Bathurst burr
cocklebur
XAST Xanthium strumarium Native
cocklebur
rough cocklebur
common cocklebur
XYGL Xylorhiza glabriuscula Native
woody aster
smooth woodyaster
YUGL Yucca glauca Native
Great Plains yucca
small soapweed
Spanish bayonet
beargrass
yucca
soapweed yucca
ZIVE Zigadenus venenosus Native
meadow deathcamas
death camas