|
Weed Name |
Bayer Code
|
Family |
Genus |
Species |
|
sacaton, alkali
|
SPZAI
|
Gramineae
|
Sporobolus
|
airoides Torr. |
|
sage
|
SALSS
|
Labiatae
|
Salvia
|
sp. |
|
sage, black
|
SALMF
|
Labiatae
|
Salvia
|
mellifera Greene |
|
sage, blue
|
SALAZ
|
Labiatae
|
Salvia
|
azurea Lam. |
|
sage, lanceleaf
|
SALRE
|
Labiatae
|
Salvia
|
reflexa Hornem. |
|
sage, meadow
|
SALPR
|
Labiatae
|
Salvia
|
pratensis L. |
|
sage, Mediterranean
|
SALAE
|
Labiatae
|
Salvia
|
aethiopis L. |
|
sage, pitchers
|
SALAG
|
Labiatae
|
Salvia
|
azurea var. grandiflora Benth. |
|
sage, white
|
SALAP
|
Labiatae
|
Salvia
|
apiana Jeps. |
|
sage, whorled
|
SALVE
|
Labiatae
|
Salvia
|
verticillata L. |
|
sagebrush, big
|
ARTTR
|
Compositae
|
Artemisia
|
tridentata Nutt. |
|
sagebrush, California
|
ARTCA
|
Compositae
|
Artemisia
|
californica Less. |
|
sagebrush, fringed
|
ARTFR
|
Compositae
|
Artemisia
|
frigida Willd. |
|
sagebrush, sand
|
ARTFI
|
Compositae
|
Artemisia
|
filifolia Torr. |
|
sagewort, common
|
ARTCM
|
Compositae
|
Artemisia
|
campestris L. |
|
sagewort, field
|
ARTCC
|
Compositae
|
Artemisia
|
campestris ssp. caudata (Michx.) Hall & Clements |
|
salmonberry
|
RUBSP
|
Rosaceae
|
Rubus
|
spectabilis Pursh |
|
salsify, common
|
TROPS
|
Compositae
|
Tragopogon
|
porrifolius L. |
|
salsify, meadow
|
TROPR
|
Compositae
|
Tragopogon
|
pratensis L. |
|
salsify, western
|
TRODM
|
Compositae
|
Tragopogon
|
dubius Scop. |
|
saltbush, Australian
|
ATXSE
|
Chenopodiaceae
|
Atriplex
|
semibaccata R.Br. |
|
saltbush, fourwing
|
ATXCA
|
Chenopodiaceae
|
Atriplex
|
canescens (Pursh) Nuttall |
|
saltbush, Salton
|
ATXEF
|
Chenopodiaceae
|
Atriplex
|
elegans ssp. fasciculata (S.Wats.) Hall & Clements |
|
saltbush, shadscale
|
ATXCO
|
Chenopodiaceae
|
Atriplex
|
confertifolia (Torr. & Frem.) S.Wats. |
|
saltbush, silver myrtle
|
ATXSS
|
Chenopodiaceae
|
Atriplex
|
sp. |
|
saltbush, silverscale
|
ATXAR
|
Chenopodiaceae
|
Atriplex
|
argentea Nutt. |
|
saltbush, wheelscale
|
ATXEL
|
Chenopodiaceae
|
Atriplex
|
elegans (Moq.) D.Dietr. |
|
saltcedar
|
TAAPE
|
Tamariscaceae
|
Tamarix
|
odessana Stev. ex Bunge |
|
saltgrass, seashore
|
DISSP
|
Gramineae
|
Distichlis
|
spicata (L.) Greene |
|
saltwort, Mediterranean
|
SASVE
|
Chenopodiaceae
|
Salsola
|
vermiculata L. |
|
saltwort, spiny
|
SASKA
|
Chenopodiaceae
|
Salsola
|
kali L. |
|
salvinia
|
SAVSS
|
Salviniaceae
|
Salvinia
|
sp. |
|
salvinia, giant
|
SAVAU
|
Salviniaceae
|
Salvinia
|
auriculata Aubl. |
|
sandbur
|
CCHSS
|
Gramineae
|
Cenchrus
|
sp. |
|
sandbur (seedling)
|
CCHSS
|
Gramineae
|
Cenchrus
|
sp. |
|
sandbur, dune
|
CCHTR
|
Gramineae
|
Cenchrus
|
tribuloides L. |
|
sandbur, field
|
CCHIN
|
Gramineae
|
Cenchrus
|
incertus M.A.Curtis |
|
sandbur, longspine
|
CCHPA
|
Gramineae
|
Cenchrus
|
longispinus (Hack.) Fern. |
|
sandbur, southern
|
CCHEC
|
Gramineae
|
Cenchrus
|
echinatus L. |
|
sandspur
|
KRALA
|
Krameriaceae
|
Krameria
|
lanceolata Torr. |
|
sandspurry, red
|
SPBRU
|
Caryophyllaceae
|
Spergularia
|
rubra (L.) J. & C.Presl |
|
sandwort, grove
|
MGJLA
|
Caryophyllaceae
|
Moehringia
|
lateriflora (L.) Fenzl. |
|
sandwort, thymeleaf
|
ARISE
|
Caryophyllaceae
|
Arenaria
|
serpyllifolia L. |
|
sarsaparillavine
|
SMIPU
|
Liliaceae
|
Smilax
|
pumila Walt. |
|
sassafras
|
SSAAL
|
Lauraceae
|
Sassafras
|
albidum (Nutt.) Nees |
|
satintail, Brazilian
|
IMPBR
|
Gramineae
|
Imperata
|
brasiliensis Trin. |
|
savory, summer
|
STIHO
|
Labiatae
|
Satureja
|
hortensis L. |
|
sawbriar, cat
|
SMIGL
|
Liliaceae
|
Smilax
|
glauca Walt. |
|
sawgrass
|
CLKJA
|
Cyperaceae
|
Cladium
|
jamaicense Crantz |
|
scabious, starry
|
CJNVU
|
Compositae
|
Crupina
|
vulgaris Cass. |
|
scaleseed, spreading
|
SMPDI
|
Umbelliferae
|
Spermolepis
|
divaricata (Walt.) Britt. |
|
scouringrush
|
EQUHY
|
Equisetaceae
|
Equisetum
|
hyemale L. |
|
scurfpea, lemon
|
PSRSS
|
Leguminosae
|
Psoralea
|
sp. |
|
sea-rocket
|
CAKMA
|
Cruciferae
|
Cakile
|
maritima Scop. |
|
sedge, annual
|
CYPCP
|
Cyperaceae
|
Cyperus
|
compressus L. |
|
sedge, beaked
|
CRXRO
|
Cyperaceae
|
Carex
|
rostrata Stokes ex With. |
|
sedge, cylindric
|
CYPRT
|
Cyperaceae
|
Cyperus
|
retrorsus Chapman |
|
sedge, Frank
|
CRXFR
|
Cyperaceae
|
Carex
|
frankii Kunth |
|
sedge, giant whitetop
|
DICLA
|
Cyperaceae
|
Dichromena
|
latifolia Baldwin ex Ell. |
|
sedge, globe
|
CYPGL
|
Cyperaceae
|
Cyperus
|
globulosus Aublet |
|
sedge, green
|
CYPVI
|
Cyperaceae
|
Cyperus
|
virens Michx. |
|
sedge, hop
|
CRXLU
|
Cyperaceae
|
Carex
|
lupulina Muhl. ex Willd. |
|
sedge, knob
|
CYPPV
|
Cyperaceae
|
Cyperus
|
pseudovegetus Steud. |
|
sedge, Leconte
|
CYPLE
|
Cyperaceae
|
Cyperus
|
lecontei Torr. |
|
sedge, Louisiana
|
CRXLN
|
Cyperaceae
|
Carex
|
louisianica Bailey |
|
sedge, Nebraska
|
CRXNB
|
Cyperaceae
|
Carex
|
nebraskensis Dewey |
|
sedge, nerved waxy
|
CRXVR
|
Cyperaceae
|
Carex
|
verrucosa Muhl. |
|
sedge, pale
|
CRXPL
|
Cyperaceae
|
Carex
|
pallescens L. |
|
sedge, ripgut
|
CRXLA
|
Cyperaceae
|
Carex
|
lacustris Willd. |
|
sedge, rough
|
CRXSN
|
Cyperaceae
|
Carex
|
senta Boott |
|
sedge, smallflower umbrella
|
CYPDI
|
Cyperaceae
|
Cyperus
|
difformis L. |
|
sedge, sugargrass
|
CRXAT
|
Cyperaceae
|
Carex
|
atherodes Spreng. |
|
sedge, Surinam
|
CYPSU
|
Cyperaceae
|
Cyperus
|
surinamensis Rottb. |
|
sedge, Texas
|
CYPPO
|
Cyperaceae
|
Cyperus
|
polystachyos Rottb. var. texensis (Torr.) Fern. |
|
sedge, water
|
CRXAQ
|
Cyperaceae
|
Carex
|
aquatilis Wahlenb. |
|
sedge, waxy
|
CRXGL
|
Cyperaceae
|
Carex
|
glaucescens Ell. |
|
sedge, whitetop
|
DICCO
|
Cyperaceae
|
Dichromena
|
colorata (L.) A.S.Hitchc. |
|
sedge, widefruit
|
CRXEU
|
Cyperaceae
|
Carex
|
eurycarPa Holm |
|
sedge, wolftail
|
CRXCH
|
Cyperaceae
|
Carex
|
cherokeensis Schwein. |
|
sedge, woolfruit
|
CRXLC
|
Cyperaceae
|
Carex
|
lasiocarPa Ehrh. |
|
sedge, yellow-white
|
CRXAL
|
Cyperaceae
|
Carex
|
albolutescens Schwein. |
|
seepweed, alkali
|
SUEFR
|
Chenopodiaceae
|
Suaeda
|
fruticosa Forsk. |
|
seepweed, western
|
SUEOC
|
Chenopodiaceae
|
Suaeda
|
occidentalis S.Wats. |
|
senna, coffee
|
CASOC
|
Leguminosae
|
Cassia
|
occidentalis L. |
|
senna, wild
|
CASMA
|
Leguminosae
|
Cassia
|
marilandica L. |
|
sensitivebriar, catclaw
|
SCNNU
|
Leguminosae
|
Schrankia
|
uncinata Willd. |
|
sensitivebriar, littleleaf
|
SCNMI
|
Leguminosae
|
Schrankia
|
microphylla (Dryand.) Macbr. |
|
sensitiveplant
|
MIMPU
|
Leguminosae
|
Mimosa
|
pudica L. |
|
sensitiveplant, giant
|
MIMIN
|
Leguminosae
|
Mimosa
|
invisa Mart. |
|
serviceberry
|
AMESS
|
Rosaceae
|
Amelanchier
|
sp. |
|
serviceberry, Allegheny
|
AMELA
|
Rosaceae
|
Amelanchier
|
laevis Wieg. |
|
sesbania
|
SEBSS
|
Leguminosae
|
Sesbania
|
sp. |
|
sesbania, bagpod
|
SEBVI
|
Leguminosae
|
Sesbania
|
vesicaria (Jacq.) Ell. |
|
sesbania, hemp
|
SEBEX
|
Leguminosae
|
Sesbania
|
exaltata (Raf.) Rydb. ex A.W.Hill |
|
seymeria, smooth
|
SEYCA
|
Scrophulariaceae
|
Seymeria
|
cassioides (Walt.) Blake |
|
seymeria, sticky
|
SEYPE
|
Scrophulariaceae
|
Seymeria
|
pectinata Pursh. |
|
shattercane
|
SORVU
|
Gramineae
|
Sorghum
|
bicolor (L.) Moench |
|
she-oak, Brazilian swamp
|
CSUGL
|
Casuarinaceae
|
Casuarina
|
glauca Sieb. |
|
shepherdsneedle
|
SCAPV
|
Umbelliferae
|
Scandix
|
pecten-veneris L. |
|
shepherdspurse
|
CAPBP
|
Cruciferae
|
Capsella
|
bursa-pastoris (L.) Medicus |
|
sibara
|
SIBVI
|
Cruciferae
|
Sibara
|
virginica (L.) Rollins |
|
sicklegrass
|
PHOIN
|
Gramineae
|
Parapholis
|
incurva (L.) C.E.Hubb. |
|
sicklepod
|
CASOB
|
Leguminosae
|
Cassia
|
obtusifolia L. |
|
sickleweed, longleaf
|
FALVU
|
Umbelliferae
|
Falcaria
|
vulgaris Bernh. |
|
sida, alkali
|
SIDHE
|
Malvaceae
|
Sida
|
hederacea (Dougl.) Torr. |
|
sida, arrowleaf
|
SIDRH
|
Malvaceae
|
Sida
|
rhombifolia L. |
|
sida, heartleaf
|
SIDCO
|
Malvaceae
|
Sida
|
cordifolia L. |
|
sida, prickly
|
SIDSP
|
Malvaceae
|
Sida
|
alba L./Mill. |
|
sida, southern
|
SIDAC
|
Malvaceae
|
Sida
|
acuta Burm. f. |
|
signalgrass
|
BRASS
|
Gramineae
|
Brachiaria
|
sp. |
|
signalgrass, broadleaf
|
BRAPP
|
Gramineae
|
Brachiaria
|
platyphylla (Griseb.) Nash |
|
signalgrass, fringed
|
BRACI
|
Gramineae
|
Brachiaria
|
ciliatissima (Buckl.) Chase |
|
signalgrass, narrowleaf
|
BRAPI
|
Gramineae
|
Brachiaria
|
piligera (F.Muell.) Hughes |
|
silkgrass
|
CYRGR
|
Compositae
|
Chrysopsis
|
graminifolia (Michx.) Nutt. |
|
silk-reed
|
NEYRE
|
Gramineae
|
Neyraudia
|
reynaudiana (Kunth) Keng ex A.S.Hitchc. |
|
silktree
|
ALBJU
|
Leguminosae
|
Albizia
|
julibrissin Durazz. |
|
skeletonweed
|
LYGJU
|
Compositae
|
Lygodesmia
|
juncea (Pursh) D.Don |
|
skullcap, hoary
|
SCDIN
|
Labiatae
|
Scutellaria
|
incana Biehler |
|
skullcap, marsh
|
SCDGA
|
Labiatae
|
Scutellaria
|
galericulata L. |
|
skunk-cabbage, common
|
SYLFO
|
Araceae
|
Symplocarpus
|
foetidus (L.) Nutt. |
|
smartweed, dotted
|
POLPT
|
Polygonaceae
|
Polygonum
|
punctatum Ell. |
|
smartweed, green
|
POLSC
|
Polygonaceae
|
Polygonum
|
scabrum Moench |
|
smartweed, hedge
|
POLSD
|
Polygonaceae
|
Polygonum
|
scandens L. |
|
smartweed, marshpepper
|
POLHY
|
Polygonaceae
|
Polygonum
|
hydropiper L. |
|
smartweed, mild
|
POLHP
|
Polygonaceae
|
Polygonum
|
hydropiperoides Michx. |
|
smartweed, Pennsylvania
|
POLPY
|
Polygonaceae
|
Polygonum
|
pensylvanicum L. |
|
smartweed, prickly
|
POLBU
|
Polygonaceae
|
Polygonum
|
bungeanum Turcz. |
|
smartweed, swamp
|
POLCC
|
Polygonaceae
|
Polygonum
|
coccineum Muhl. ex Willd. |
|
smartweed, water
|
POLAM
|
Polygonaceae
|
Polygonum
|
amphibium L. |
|
smartweed, woolly
|
POLTO
|
Polygonaceae
|
Polygonum
|
lapathifolium L. ssp. pallidum (With.) Fr. |
|
smartweeds (annuals)
|
POLSS
|
Polygonaceae
|
Polygonum
|
sp. |
|
smellmelon
|
CUMMD
|
Cucurbitaceae
|
Cucumis
|
melo L. var. dudaim Naud. |
|
smutgrass
|
SPZPO
|
Gramineae
|
Sporobolus
|
poiretti (Roem. & Schult.) Hitchc. |
|
snakeroot, black
|
CIMRA
|
Ranunculaceae
|
Cimicifuga
|
racemosa (L.) Nutt. |
|
snakeroot, button
|
ERXYU
|
Umbelliferae
|
Eryngium
|
yuccifolium Michx. |
|
snakeroot, white
|
EUPRU
|
Compositae
|
Eupatorium
|
rugosum Houtt. |
|
snakeweed
|
GUESS
|
Compositae
|
Gutierrezia
|
sp. |
|
snakeweed, broom
|
GUESA
|
Compositae
|
Gutierrezia
|
sarothrae (Pursh) Britt. & Rusby |
|
snakeweed, threadleaf
|
GUEMI
|
Compositae
|
Gutierrezia
|
microcephala (DC.) Gray |
|
snapdragon
|
ATHMM
|
Scrophulariaceae
|
Antirrhinum
|
majus L. |
|
snapdragon, dwarf
|
CHNMI
|
Scrophulariaceae
|
Chaenorrhinum
|
minus (L.) Lange |
|
sneezeweed, bitter
|
HENAM
|
Compositae
|
Helenium
|
amarum (Raf.) H.Rock |
|
sneezeweed, common
|
HENAU
|
Compositae
|
Helenium
|
autumnale L. |
|
sneezeweed, orange
|
HENHO
|
Compositae
|
Helenium
|
hoopesii Gray |
|
sneezeweed, purplehead
|
HENFL
|
Compositae
|
Helenium
|
flexuosum Raf. |
|
snowberry, common
|
SYPAL
|
Caprifoliaceae
|
Symphoricarpos
|
albus (L.) S.F.Blake |
|
snowberry, western
|
SYPOC
|
Caprifoliaceae
|
Symphoricarpos
|
occidentalis Hook. |
|
snowflake, summer
|
LEJAE
|
Amaryllidaceae
|
Leucojum
|
aestivum L. |
|
snow-on-the-mountain
|
EPHMG
|
Euphorbiaceae
|
Euphorbia
|
marginata Pursh |
|
soap plant
|
CHLPO
|
Liliaceae
|
Chlorogalum
|
pomeridianum (KER./DC.) Kunth |
|
soapberry, western
|
SAKSD
|
Sapindaceae
|
Sapindus
|
saponaria L. var. drummondii (H. & A.) L.Benson |
|
soda apple, tropical
|
SOLVI
|
Solanaceae
|
Solanum
|
viarum Dunal |
|
sophora, silky
|
SOBSR
|
Leguminosae
|
Sophora
|
sericea Nutt. |
|
sorghum (volunteer)
|
SORSS
|
Gramineae
|
Sorghum
|
sp. |
|
sorghum, almum
|
SORAL
|
Gramineae
|
Sorghum
|
almum Parod. |
|
sorrel, green
|
RUMAC
|
Polygonaceae
|
Rumex
|
acetosa L. |
|
sorrel, heartwing
|
RUMHA
|
Polygonaceae
|
Rumex
|
hastatulus Baldw. ex Ell. |
|
sorrel, red
|
RUMAA
|
Polygonaceae
|
Rumex
|
acetosella L. |
|
sourgrass
|
TRCIN
|
Gramineae
|
Trichachne
|
insularis (L.) Mez ex Ekman |
|
sourwood, common
|
OXDAR
|
Ericaceae
|
Oxydendrum
|
arboreum (L.) DC. |
|
sowthistle, annual
|
SONOL
|
Compositae
|
Sonchus
|
oleraceus L. |
|
sowthistle, marsh
|
SONAU
|
Compositae
|
Sonchus
|
arvensis spp. uliginosus (Bieb.) Nyman |
|
sowthistle, perennial
|
SONAR
|
Compositae
|
Sonchus
|
arvensis L. |
|
sowthistle, spiny
|
SONAS
|
Compositae
|
Sonchus
|
asPer (L.) Hill |
|
spanishneedles
|
BIDBI
|
Compositae
|
Bidens
|
bipinnata L. |
|
spatterdock
|
NUPLM
|
Nymphaeaceae
|
Nuphar
|
luteum ssp. macroPhyllum (Small) E.O.Beal |
|
spatterdock, Rocky Mountain
|
NUPLP
|
Nymphaeaceae
|
Nuphar
|
luteum ssp. polysepalum (Engelm.) E.O.Beal |
|
spearmint
|
MENSP
|
Labiatae
|
Mentha
|
spicata L. |
|
speedwell, birdseye
|
VERPE
|
Scrophulariaceae
|
Veronica
|
buxbaumii Tenore |
|
speedwell, common
|
VEROF
|
Scrophulariaceae
|
Veronica
|
officinalis L. |
|
speedwell, corn
|
VERAR
|
Scrophulariaceae
|
Veronica
|
arvensis L. |
|
speedwell, field
|
VERAG
|
Scrophulariaceae
|
Veronica
|
agrestis L. |
|
speedwell, germander
|
VERCH
|
Scrophulariaceae
|
Veronica
|
chamaedrys L. |
|
speedwell, ivyleaf
|
VERHE
|
Scrophulariaceae
|
Veronica
|
hederifolia L. |
|
speedwell, longleaf
|
VERLO
|
Scrophulariaceae
|
Veronica
|
longifolia L. |
|
speedwell, Persian
|
VERPE
|
Scrophulariaceae
|
Veronica
|
persica Poir. |
|
speedwell, purslane
|
VERPG
|
Scrophulariaceae
|
Veronica
|
peregrina L. |
|
speedwell, slender
|
VERFI
|
Scrophulariaceae
|
Veronica
|
filiformis Sm. |
|
speedwell, Snow
|
VERBI
|
Scrophulariaceae
|
Veronica
|
biloba L. |
|
speedwell, thymeleaf
|
VERSE
|
Scrophulariaceae
|
Veronica
|
serpyllifolia L. |
|
speedwell, water
|
VERAA
|
Scrophulariaceae
|
Veronica
|
anagallis-aquatica L. |
|
speedwell, wayside
|
VERPO
|
Scrophulariaceae
|
Veronica
|
polita Fries |
|
speedwell, western purslane
|
VERPX
|
Scrophulariaceae
|
Veronica
|
peregrina ssp. xalapensis (H.B.K.) Pennell |
|
spicebush
|
LIESS
|
Lauraceae
|
Lindera
|
sp. |
|
spiderflower
|
CLEHA
|
Capparidaceae
|
Cleome
|
hassleriana Chodat |
|
spiderlily, red
|
LYRRA
|
Amaryllidaceae
|
Lycoris
|
radiata (L'Her.) Herb. |
|
spiderling, Coulter
|
BOECO
|
Nyctaginaceae
|
Boerhavia
|
coulteri (Hook. f.) S.Wats. |
|
spiderling, erect
|
BOEER
|
Nyctaginaceae
|
Boerhavia
|
erecta L. |
|
spiderling red
|
BOEDI
|
Nyctaginaceae
|
Boerhavia
|
diffusa L. |
|
spiderwort, common
|
TRAOH
|
Commelinaceae
|
Tradescantia
|
ohiensis Raf. |
|
spiderwort, tropical
|
COMBE
|
Commelinaceae
|
Commelina
|
benghalensis L. |
|
spiderwort, white flowered
|
TRAFL
|
Commelinaceae
|
Tradescantia
|
fluminensis Vell. |
|
spikerush
|
ELOSS
|
Cyperaceae
|
Eleocharis
|
sp. |
|
spikerush, beaked
|
ELORO
|
Cyperaceae
|
Eleocharis
|
rostellata Torr. |
|
spikerush, blunt
|
ELOOB
|
Cyperaceae
|
Eleocharis
|
obtusa (Willd.) Schultes |
|
spikerush, creeping
|
ELOPA
|
Cyperaceae
|
Eleocharis
|
palustris (L.) R. & S. |
|
spikerush, dwarf
|
ELOPV
|
Cyperaceae
|
Eleocharis
|
parvula (R. & S.) Link ex Buff, Nees & Sauer |
|
spikerush, gulfcoast
|
ELOCE
|
Cyperaceae
|
Eleocharis
|
cellulosa Torr. |
|
spikerush, needle
|
ELOAC
|
Cyperaceae
|
Eleocharis
|
acicularis (L.) R. & S. |
|
spikerush, slender
|
ELOBA
|
Cyperaceae
|
Eleocharis
|
baldwinii (Torr.) Chapman |
|
spikerush, sprouting
|
ELOVI
|
Cyperaceae
|
Eleocharis
|
vivipara Link |
|
spikerush, squarestem
|
ELOQU
|
Cyperaceae
|
Eleocharis
|
quadrangulata (Michx.) R. & S. |
|
spikeweed, common
|
HEZPU
|
Compositae
|
Hemizonia
|
pungens (Hook. & Arn.) T. & G. |
|
spoonflower
|
PETSA
|
Araceae
|
Peltandra
|
sagittifolia (Michx.) Morong |
|
sprangletop
|
LEFSS
|
Gramineae
|
Leptochloa
|
sp. |
|
sprangletop, Amazon
|
LEFPA
|
Gramineae
|
Leptochloa
|
panicoides (Presl) Hitchc. |
|
sprangletop, bearded
|
LEFFA
|
Gramineae
|
Leptochloa
|
fascicularis (Lam.) Gray |
|
sprangletop, Chinese
|
LEFCH
|
Gramineae
|
Leptochloa
|
chinensis (L.) Nees |
|
sprangletop, green
|
LEFDU
|
Gramineae
|
Leptochloa
|
dubia (H.B.K.) Nees |
|
sprangletop, Mexican
|
LEFUN
|
Gramineae
|
Leptochloa
|
uninervia (Presl) Hitchc. & Chase |
|
sprangletop, red
|
LEFFI
|
Gramineae
|
Leptochloa
|
filiformis (Lam.) Beauv. |
|
spring beauty, broadleaf
|
CLACA
|
Portulacaceae
|
Claytonia
|
caroliniana Michx. |
|
spring beauty, narrowleaf
|
CLAVI
|
Portulacaceae
|
Claytonia
|
virginica L. |
|
spruce, white
|
PIEGA
|
Pinaceae
|
Picea
|
glauca (Moench) Voss |
|
spurge
|
EPHSS
|
Euphorbiaceae
|
Euphorbia
|
sp. |
|
spurge, creeping
|
EPHSN
|
Euphorbiaceae
|
Euphorbia
|
serpens H.B.K. |
|
spurge, cypress
|
EPHCY
|
Euphorbiaceae
|
Euphorbia
|
cyparissias L. |
|
spurge, flowering
|
EPHCO
|
Euphorbiaceae
|
Euphorbia
|
corollata L. |
|
spurge, garden
|
EPHHI
|
Euphorbiaceae
|
Euphorbia
|
hirta L. |
|
spurge, graceful
|
EPHHY
|
Euphorbiaceae
|
Euphorbia
|
indica Lam. |
|
spurge, ground
|
EPHPT
|
Euphorbiaceae
|
Euphorbia
|
prostrata Ait. |
|
spurge, hairy
|
EPHVE
|
Euphorbiaceae
|
Euphorbia
|
vermiculata Raf. |
|
spurge, hyssop
|
EPHHS
|
Euphorbiaceae
|
Euphorbia
|
hyssopifolia L. |
|
spurge, leafy
|
EPHES
|
Euphorbiaceae
|
Euphorbia
|
esula L. |
|
spurge, littleleaf
|
EPHMI
|
Euphorbiaceae
|
Euphorbia
|
micromera Boiss. ex Engelm. |
|
spurge, netseed
|
EPHSQ
|
Euphorbiaceae
|
Euphorbia
|
spathulata Lam. |
|
spurge, nodding
|
EPHNU
|
Euphorbiaceae
|
Euphorbia
|
nutans Lag. |
|
spurge, petty
|
EPHPE
|
Euphorbiaceae
|
Euphorbia
|
peplus L. |
|
spurge, prostrate
|
EPHHT
|
Euphorbiaceae
|
Euphorbia
|
humistrata Engelm. ex Gray |
|
spurge, ridgeseed
|
EPHGL
|
Euphorbiaceae
|
Euphorbia
|
glyptosperma Engelm. |
|
spurge, spotted
|
EPHMA
|
Euphorbiaceae
|
Euphorbia
|
maculata L. |
|
spurge, sun
|
EPHHE
|
Euphorbiaceae
|
Euphorbia
|
helioscopia L. |
|
spurge, toothed
|
EPHDE
|
Euphorbiaceae
|
Euphorbia
|
dentata Michx. |
|
spurge, toothed
|
EPHSR
|
Euphorbiaceae
|
Euphorbia
|
serrata L. |
|
spurge, whitemargin
|
EPHAL
|
Euphorbiaceae
|
Euphorbia
|
albomarginata T. & G. |
|
spurry, corn
|
SPRAR
|
Caryophyllaceae
|
Spergula
|
arvensis L. |
|
spurry, umbrella
|
HLOUM
|
Caryophyllaceae
|
Holosteum
|
umbellatum L. |
|
squirreltail
|
SITHY
|
Gramineae
|
Sitanion
|
hystrix (Nutt.) J.G.Smith |
|
St.Augustine grass, common
|
STPSE
|
Gramineae
|
Stenotaphrum
|
americanum Schrank |
|
St.Johnswort, common
|
HYPPE
|
Hypericaceae
|
Hypericum
|
perforatum L. |
|
St.Johnswort, golden
|
HYPFR
|
Hypericaceae
|
Hypericum
|
frondosum Michx. |
|
St.Johnswort, Irish
|
HYPCD
|
Guttiferae
|
Hypericum
|
canadense L. |
|
St.Johnswort, marsh
|
HYPVI
|
Hypericaceae
|
Hypericum
|
viginicum L. |
|
St.Johnswort, spotted
|
HYPPU
|
Hypericaceae
|
Hypericum
|
punctatum Lam. |
|
star of Bethlehem
|
OTGUM
|
Liliaceae
|
Ornithogalum
|
umbellatum L. |
|
star of Bethlehem, nodding
|
OTGNU
|
Liliaceae
|
Ornithogalum
|
nutans L. |
|
starbur, bristly
|
ACNHI
|
Compositae
|
Acanthospermum
|
hispidum DC. |
|
starbur, Paraguay
|
ACNAU
|
Compositae
|
Acanthospermum
|
australe (Loefl.) Ktze. |
|
star-flower
|
TNTBO
|
Primulaceae
|
Trientalis
|
borealis Raf. |
|
stargrass
|
FINFI
|
Cyperaceae
|
Ficinia
|
filiformis (Lam.) Schrad. |
|
starthistle
|
CENSS
|
Compositae
|
Centaurea
|
sp. |
|
starthistle, Iberian
|
CENIB
|
Compositae
|
Centaurea
|
iberica Trev. ex Spreng. |
|
starthistle, Malta
|
CENME
|
Compositae
|
Centaurea
|
melitensis L. |
|
starthistle, purple
|
CENCA
|
Compositae
|
Centaurea
|
calcitrapa L. |
|
starthistle, yellow
|
CENSO
|
Compositae
|
Centaurea
|
solstitialis L. |
|
starwort, Easterbell
|
STEHO
|
Caryophyllaceae
|
Stellaria
|
holostea L. |
|
starwort, little
|
STEGR
|
Caryophyllaceae
|
Stellaria
|
graminea L. |
|
starwort, water
|
MYTAQ
|
Caryophyllaceae
|
Myosoton
|
aquaticum (L.) Moench |
|
stickleaf, desert
|
MNZMU
|
Loasaceae
|
Mentzelia
|
multiflora (Nutt.) Gray |
|
stickleaf, tenpetal
|
MNZDE
|
Loasaceae
|
Mentzelia
|
decapetala (Pursh) Urban & Gilg. |
|
stickleaf, whitestem
|
MNZAL
|
Loasaceae
|
Mentzelia
|
albicaulis (Dougl. ex Hook.) T. & G. |
|
stickseed, western
|
HACFL
|
Boraginaceae
|
Hackelia
|
floribunda (Lehm.) I.M.Johnst. |
|
sticktight, European
|
LPLSQ
|
Boraginaceae
|
Lappula
|
echinata Gilib. |
|
sticktight, western
|
LPLOC
|
Boraginaceae
|
Lappula
|
occidentalis (S.Wats.) Greene |
|
stinkgrass
|
ERAME
|
Gramineae
|
Eragrostis
|
major Host |
|
stinkweed
|
PLUCA
|
Compositae
|
Pluchea
|
camphorata (L.) DC. |
|
stock, common
|
MTLIN
|
Cruciferae
|
Matthiola
|
incana (L.) R.Br. |
|
stock, evening
|
MTLLB
|
Cruciferae
|
Matthiola
|
bicornis (Sibth. & Sm.) DC. |
|
stock, Malcolm
|
MAMAF
|
Cruciferae
|
Malcolmia
|
africana (L.) R.Br. |
|
stonecrop, live forever
|
SEDTE
|
Crassulaceae
|
Sedum
|
telephium L. |
|
stonecrop, mossy
|
SEDAC
|
Crassulaceae
|
Sedum
|
acre L. |
|
stonecrop, two row
|
SEDSU
|
Crassulaceae
|
Sedum
|
spurium Bieb. |
|
strawberry, wild
|
FRAVI
|
Rosaceae
|
Fragaria
|
virginiana Duchesne |
|
sugarcane, wild
|
SACSP
|
Gramineae
|
Saccharum
|
spontaneum L. |
|
sumac
|
RHUSS
|
Anacardiaceae
|
Rhus
|
sp. |
|
sumac, dwarf
|
RHUCO
|
Anacardiaceae
|
Rhus
|
copallina L. |
|
sumac, laurel
|
RHULU
|
Anacardiaceae
|
Rhus
|
laurina Nutt. |
|
sumac, poison
|
TOXVX
|
Anacardiaceae
|
Toxicodendron
|
vernix (L.) O.Kuntze |
|
sumac, prairie
|
RHULA
|
Anacardiaceae
|
Rhus
|
lanceolata (Gray) Britt. |
|
sumac, shining
|
RHUCH
|
Anacardiaceae
|
Rhus
|
copallina L. |
|
sumac, smooth
|
RHUGL
|
Anacardiaceae
|
Rhus
|
glabra L. |
|
sumac, staghorn
|
RHUTY
|
Anacardiaceae
|
Rhus
|
typhina L. |
|
sumac, sugar
|
RHUOV
|
Anacardiaceae
|
Rhus
|
ovata S.Wats. |
|
summergrass
|
DIGSA
|
Gramineae
|
Digitaria
|
fimbriata Link |
|
sumpweed, poverty
|
IVAAX
|
Compositae
|
Iva
|
axillaris Pursh |
|
sumpweed, rough
|
IVACI
|
Compositae
|
Iva
|
ciliata Willd. |
|
sundrops, perennial
|
OEOPE
|
Onagraceae
|
Oenothera
|
perennis L. |
|
sunflower (volunteer)
|
HELAN
|
Compositae
|
Helianthus
|
annuus L. |
|
sunflower, bright
|
HELLA
|
Compositae
|
Helianthus
|
laetiflorus Pers. |
|
sunflower, common
|
HELAN
|
Compositae
|
Helianthus
|
annuus L. |
|
sunflower, Maximilian
|
HELMA
|
Compositae
|
Helianthus
|
maximilianii Schrad. |
|
sunflower, prairie
|
HELPE
|
Compositae
|
Helianthus
|
petiolaris Nutt. |
|
sunflower, stiff
|
HELRI
|
Compositae
|
Helianthus
|
rigidus (Cass.) Desf. |
|
supplejack, Alabama
|
BEHSC
|
Rhamnaceae
|
Berchemia
|
scandens (Hill) K.Koch |
|
swainsonpea
|
SWASA
|
Leguminosae
|
Swainsonia
|
salsula (Pall.) DC. |
|
swallowwort, black
|
CYKNI
|
Asclepiadaceae
|
Cynanchum
|
nigrum (L.) Pers. |
|
swallowwort, white
|
CYKVI
|
Asclepiadaceae
|
Cynanchum
|
vincetoxicum (L.) Pers. |
|
sweetclover
|
MEUSS
|
Leguminosae
|
Melilotus
|
sp. |
|
sweetclover, Indian
|
MEUIN
|
Leguminosae
|
Melilotus
|
indica (L.) All. |
|
sweetclover, tall yellow
|
MEUAT
|
Leguminosae
|
Melilotus
|
altissima Thuill. |
|
sweetclover, white
|
MEUAL
|
Leguminosae
|
Melilotus
|
alba Medicus |
|
sweetclover, yellow
|
MEUOF
|
Leguminosae
|
Melilotus
|
officinalis (L.) Lam. |
|
sweetfern
|
COVPE
|
Myricaceae
|
Comptonia
|
peregrina (L.) L.Coult. |
|
sweetflag
|
ACSCA
|
Araceae
|
Acorus
|
calamus L. |
|
sweetgum
|
LIQST
|
Hamamelidaceae
|
Liquidambar
|
styraciflua L. |
|
sweetroot, spreading
|
OMRCH
|
Umbelliferae
|
Osmorhiza
|
chilensis H. & A. |
|
swinecress
|
COPSQ
|
Cruciferae
|
Coronopus
|
procumbens Gilbert |
|
swordfern, common
|
NEHEX
|
Dryopteridaceae
|
Nephrolepis
|
exaltata (L.) Schott. |
|
sycamore, common
|
ACRPP
|
Aceraceae
|
Acer
|
pseudoplatanus L. |