Welcome
to the UMass Extension Weed Herbarium! Weeds in the herbarium
can be sorted by common name, scientific name, or plant family
by using the "Sort list by" links below. Images
and notes to aid in identification are revealed by clicking
on the weed name. For questions and permission to use photos
contact
Randy Prostak; rprostak@umext.umass.edu.
This
online herbarium is a feature of the UMass Extension Landscape,
Nursery, and Urban Forestry Program web site. Take
me to the home page >> |
Sort
list by: Common Name
| Scientific Name | Family
Name
A | B | C | D | E | F | G | H |
I | J | K | L | M | N | O | P |
Q | R |S | T | U | V | W | X | Y | Z
A 
|
| Aizoaceae
- Carpetweed Family |
|
carpetweed |
Mollugo
verticillata |
| Amaranthaceae
- Amaranth Family |
| |
amaranth, spiny |
Amaranthus spinosus |
| |
cottonweed
|
Froelichia
gracilis |
|
pigweed,
livid |
Amaranthus
lividus |
|
pigweed,
redroot |
Amaranthus
retroflexus |
| Anacardiaceae
- Cashew Family |
|
poison-ivy |
Toxicodendron
radicans |
|
sumac, smooth |
Rhus glabra |
| |
sumac, staghorn |
Rhus typhina |
| Apiaceae
(Umbelliferae) - Carrot Family |
| |
alexanders,
golden |
Zizia
aurea |
| |
angelica,
purplestem |
Angelica
atropurpurea |
| |
aniseroot |
Osmorhiza
longistilis |
|
bishops goutweed |
Aegopodium podagraria |
|
carrot,
wild |
Daucus
carota |
| |
cicely,
sweet |
Osmorhiza
claytoni |
| |
cowparsnip |
Heracleum
lanatum |
| |
parsnip, wild |
Pastinaca sativa |
| |
waterhemlock, spotted |
Cicuta maculata |
| Apocynaceae
- Dogbane Family |
| |
dogbane,
hemp |
Apocynum
cannabinum |
| |
dogbane, spreading |
Apocynum androsaemifolium |
| Araceae - Arum Family |
| |
skunk-cabbage,
common |
Symplocarpus
foetidus |
| Asclepiadaceae
- Milkweed Family |
|
milkweed,
common |
Asclepias
syriaca |
| |
milkweed,
swamp |
Asclepias
incarnata |
| |
swallowwort,
black |
Cynanchum
nigrum |
| |
swallowwort,
pale |
Cynanchum
rossicum |
| Asteraceae
(Compositae) - Aster or Sunflower Family |
| |
aster,
white wood |
Aster
divaricatus |
| |
beggarticks,
devil's |
Bidens
frondosa |
| |
black-eyed
susan |
Rudbeckia
hirta |
| |
boneset |
Eupatorium
perfoliatum |
| |
burdock,
common |
Arctium
minus |
| |
burdock,
great |
Arctium
lappa |
| |
butterbur |
Petasites
hybridus |
|
cat's
ear/false dandelion |
Hypochaeris
radicata |
| |
chicory |
Cichorium
intybus |
| |
cocklebur |
Xanthium
strumarium |
| |
coltsfoot |
Tussilago
farfara |
| |
cupplant |
Silphium
perfoliatum |
| |
daisy,
oxeye |
Chrysanthemum
leucanthemum |
| |
dandelion |
Taraxacum
officinale |
| |
dandelion,
fall |
Leontodon
autumnalis |
| |
dogfennel |
Eupatorium
capillifolium |
| |
fleabane,
annual |
Erigeron
annuus |
| |
fleabane, poor-robin |
Erigeron pulchellus |
| |
galinsoga,
hairy |
Galinsoga
ciliata |
| |
goldenrod,
Canada |
Solidago
canadensis |
| |
goldenrod,
narrowleaf |
Solidago
graminifolia |
| |
goldenrod,
seashore |
Solidago
sempervirens |
| |
groundsel,
common |
Senecio
vulgaris |
| |
hawksbeard,
narrowleaf |
Crepis
tectorum |
| |
hawkweed |
Hieracium
pratense |
| |
hawkweed,
European |
Hieracium
vulgatum |
| |
hawkweed, orange |
Hieracium aurantiacum |
| |
hawkweed,
panicled |
Hieracium
paniculatum |
| |
horseweed |
Conyza
canadensis |
| |
Jerusalem artichoke |
Helianthus tuberosus |
| |
joe-pye weed, eastern |
Eupatorium dubium |
| |
joe-pye weed, hollow-stemmed |
Eupatorium fistulosum |
| |
joe-pye weed, spotted |
Eupatorium maculatum |
| |
knapweed,
spotted |
Centaurea
maculosa |
| |
lettuce,
biennial |
Lactuca
biennis |
| |
lettuce,
prickly |
Lactuca
serriola |
| |
lettuce,
tall |
Lactuca
canadensis |
| |
mugwort |
Artemisia
vulgaris |
| |
nipplewort |
Lapsana communis |
| |
pearly-everlasting |
Anaphalis
margaritacea |
| |
pilewort |
Erechtites
hieraciifolia |
| |
pineappleweed |
Matricaria
matricariodes |
| |
pussytoes,
field |
Antennaria
neglecta |
| |
ragweed,
common |
Ambrosia
artemisiifolia |
| |
ragweed,
giant |
Ambrosia
trifida |
| |
ragwort, tansy |
Senecio jacobaea |
| |
salsify,
yellow |
Tragopogon
dubius |
| |
snakeroot,
white |
Eupatorium
rugosum |
| |
sowthistle,
annual |
Sonchus
oleraceus |
| |
sowthistle,
perennial |
Sonchus
arvensis |
| |
sowthistle,
spiny |
Sonchus
asper |
| |
tansy
|
Tanacetum
vulgare |
| |
thistle,
bull |
Cirsium
vulgare |
| |
thistle,
Canada |
Cirsium
arvense |
| |
wingstem |
Verbesina
alternifolia |
| |
yarrow |
Achillea
millefolium |
| B
|
| Balsaminaceae
- Touch-me-not Family |
| |
balsam,
Himalaya |
Impatiens
glandulifera |
| |
touch-me-not,
pale |
Impatiens
pallida |
| |
touch-me-not,
spotted |
Impatiens
capensis |
| Boraginaceae
- Borage Family |
| |
beggarslice |
Hackelia
virginiana |
| |
blueweed |
Echium
vulgare |
| Brassicaceae
(Cruciferae) - Mustard Family |
| |
alyssum,
hoary |
Berteroa
incana |
| |
bittercress |
Cardamine
hirsuta |
| |
bittercress, cuckoo |
Cardamine pratensis |
| |
cress, mouse-ear |
Arabidopsis thaliana |
| |
damesrocket |
Hesperis matronalis |
| |
fieldcress, prostrate |
Rorippa x prostrata |
| |
mustard,
garlic |
Alliaria
petiolata |
| |
mustard,
hedge |
Sisymbrium
officinale |
| |
mustard,
tower |
Arabis
glabra |
| |
mustard,
wallflower |
Erysimum
cheiranthoides |
| |
mustard, wild |
Brassica kaber |
| |
pennycress,
field |
Thlaspi
arvense |
| |
pepperweed,
field |
Lepidium
campestre |
| |
pepperweed,
Virginia |
Lepidium
virginicum |
| |
radish,
wild |
Raphanus
raphanistrum |
| |
rocket,
yellow |
Barbarea
vulgaris |
| |
shepherd's-purse |
Capsella
bursa-pastoris |
| |
whitlowgrass,
spring |
Draba
verna |
| |
yellowcress,
marsh |
Rorippa
palustris |
| C
|
| Campanulaceae
- Bluebell Family |
| |
Venus
lookingglass |
Triodanis
perfoliata |
| Caprifoliaceae – Honeysuckle
Family |
| |
honeysuckle,
Japanese |
Lonicera
japonica |
| Caryophyllaceae
- Pink Family |
| |
bouncingbet |
Saponaria officinalis |
| |
bladder campion |
Silene vulgaris |
| |
chickweed,
common |
Stellaria
media |
| |
chickweed,
mouseear |
Cerastium
vulgatum |
| |
cockle,
white |
Silene
alba |
| |
deptford
pink |
Dianthus
armeria |
| |
knawel |
Scleranthus
annuus |
| |
little starwort |
Stellaria graminea |
| |
maiden pink |
Dianthus deltoides |
| |
pearlwort,
birdseye |
Sagina
procumbens |
| |
ragged
robin |
Lychnis
flos-cuculi |
| |
sandspurry,
red |
Spergularia
rubra |
| |
sandwort,
thymeleaf |
Arenaria
serpyllifolia |
| Celastraceae
- Stafftree Family |
| |
bittersweet,
oriental |
Celastrus
orbiculatus |
| Chenopodiaceae
- Goosefoot Family |
| |
goosefoot,
Jerusalem-oak |
Chenopodium
botrys |
| |
kochia |
Kochia
scoparia |
| |
lambsquarters,
common |
Chenopodium
album |
| |
mexicantea |
Chenopodium ambrosioides |
| Commelinaceae
- Spiderwort Family |
| |
dayflower,
Asiatic |
Commelina
communis |
| Convolvulaceae
- Morningglory Family |
| |
bindweed,
field |
Convolvulus
arvensis |
| |
bindweed,
hedge |
Calystegia
sepium |
| |
dodder |
Cuscuta
spp. |
| Cucurbitaceae
- Gourd Family |
| |
burcucumber |
Sicyos
angulatus |
| |
cucumber,
wild |
Echinocystis
lobata |
| Cyperaceae
- Sedge Family |
| |
nutsedge,
yellow |
Cyperus
esculentus |
| D
|
| Dipsacaceae
- Teasel Family |
| |
teasel |
Dipsacus
fullonum |
| E
|
| Equisetaceae
- Horsetail Family |
| |
horsetail,
field |
Equisetum
arvense |
| |
scouring
rush |
Equisetum
hyemale |
| Euphorbiaceae
- Spurge Family |
| |
copper-leaf,
Virginia |
Acalypha
rhomboidea |
| |
spurge, cypress |
Euphorbia cyparissias |
| |
spurge,
spotted |
Euphorbia
maculata |
| F
|
| Fabaceae
(Leguminosae) - Pea or Bean Family |
| |
bush
clover, slender |
Lespedeza
virginica |
| |
clover,
alsike |
Trifolium
hybridum |
| |
clover,
rabbitfoot |
Trifolium
arvense |
| |
clover,
red |
Trifolium
pratense |
| |
clover,
white |
Trifolium
repens |
| |
crownvetch, trailing |
Coronilla varia |
| |
groundnut |
Apios americana |
| |
hog-peanut |
Amphicarpaea
bracteata |
| |
kudzu |
Pueraria montana |
| |
locust,
bristly |
Robinia
hispida |
| |
medic,
black |
Medicago
lupulina |
| |
peavine,
everlasting |
Lathyrus
latifolius |
| |
sweetclover,
white |
Melilotus
alba |
| |
sweetclover,
yellow |
Melilotus
offincinalis |
| |
trefoil,
birdfoot |
Lotus
corniculatus |
| |
vetch,
bird |
Vicia
cracca |
| G
|
| Geraniaceae
- Geranium Family |
| |
filaree,
redstem |
Erodium
cicutarium |
| |
geranium,
wild |
Geranium
maculatum |
| H
|
| Hepatophyta
(Phylum) |
| |
liverwort |
Marchantia polymorpha |
| Hyperiacaceae
- St. Johnswort Family |
| |
St.
Johnswort |
Hypericum
perforatum |
| J
|
| Juncaceae
- Rush Family |
| |
rush,
path |
Juncus
tenuis |
| L
|
| Lamiaceae
(Labiatae) - Mint Family |
| |
bugleweed,
American |
Lycopus
americanus |
| |
deadnettle,
red |
Lamium
purpureum |
| |
ground
ivy |
Glechoma
hederacea |
| |
healall |
Prunella
vulgaris |
| |
henbit |
Lamium
amplexicaule |
| |
horsebalm |
Collinsonia
canadensis |
| |
motherwort |
Leonurus cardiaca |
| Lardizabalaceae - Lardizabala Family |
| |
akebia,
five-leaf |
Akebia
quinata |
| Liliaceae
- Lily Family |
| |
false
hellebore, green |
Veratrum
viride |
| |
garlic,
wild |
Allium
vineale |
| |
lily-of-the-valley,
false |
Maianthemum
canadense |
| |
star-of-bethlehem |
Ornithogalum
umbellatum |
| Lobeliaceae
- Bluebell Family |
| |
lobelia,
great |
Lobelia
siphilitica |
| |
tobacco,
indian |
Lobelia
inflata |
| Lythraceae
- Loosestrife Family |
| |
loosestrife,
purple |
Lythrum
salicaria |
| M
|
| Malvaceae
- Mallow Family |
| |
mallow,
common |
Malva
neglecta |
| |
mallow,
venice |
Hibicus
trionum |
| |
velvetleaf |
Abutilon
theophrasti |
| N
|
| Nyctaginaceae
- Four-O'clock Family |
| |
four-o'clock,
wild |
Mirabilis
nyctaginea |
| O
|
| Onagraceae
- Evening Primrose Family |
| |
eveningprimrose,
common |
Oenothera
biennis |
| |
fireweed |
Epilobium angustifolium |
| |
nightshade,
enchanter's |
Circaea
quadrisulcata |
| |
willowherb,
American |
Epilobium
ciliatum |
| Oxalidaceae
- Woodsorrel Family |
| |
woodsorrel,
creeping |
Oxalis
corniculata |
| |
woodsorrel,
yellow |
Oxalis
stricta |
| P
|
Papaveraceae - Poppy Family |
| |
celandine, greater |
Chelidonium majus |
| Phytolaccaceae
- Pokeweed Family |
| |
pokeweed,
common |
Phytolacca
americana |
| Plantaginaceae
- Plantain Family |
| |
plantain,
broadleaf |
Plantago
major |
| |
plantain,
narrowleaf |
Plantago
lanceolata |
| Poaceae
(Graminae) - Grass Family |
| |
barnyardgrass |
Echinochloa
crus-galli |
| |
bluegrass,
annual |
Poa
annua |
| |
bluegrass,
bulbous |
Poa
bulbosa |
| |
bluestem, big |
Andropogon gerardii |
| |
bluestem,
little |
Andropogon
scoparius |
| |
brome,
downy |
Bromus
tectorum |
| |
brome, smooth |
Bromus inermis |
| |
canarygrass,
reed |
Phalaris
arundinacea |
| |
crabgrass,
large |
Digitaria
sanguinalis |
| |
crabgrass,
smooth |
Digitaria
ischaemum |
| |
creeping bentgrass |
Agrostis
stolonifera |
| |
dallisgrass |
Paspalum
dilatatum |
| |
deertonguegrass |
Dicanthelium clandestinum |
| |
fescue, tall |
Festuca arundinacea |
| |
foxtail,
giant |
Setaria
faberi |
| |
foxtail,
yellow |
Setaria
glauca |
| |
goosegrass |
Eleusine
indica |
| |
indiangrass, yellow |
Sorghastrum nutans |
| |
johnsongrass |
Sorghum
halepense |
| |
lawngrass,
Japanese |
Zoysia
japonica |
| |
lovegrass, purple |
Eragrotis spectabilis |
| |
nimblewill |
Muhlenbergia schreberi |
| |
orchardgrass |
Dactylis
glomerata |
| |
panicgrass, round fruited |
Dicanthelium sphaerocarpon |
| |
panicum,
fall |
Panicum
dichotomiflorum |
| |
paspalum |
Paspalum
setaceum |
| |
purpletop |
Tridens flavus |
| |
quackgrass |
Elytrigia
repens |
| |
reed,
common |
Phragmites
australis |
| |
sandbur,
longspine |
Cenchrus
longispinus |
| |
silvergrass,
amur |
Miscanthus
sacchariflorus |
| |
stiltgrass,
Japanese |
Microstegium
vimineum |
| |
stinkgrass |
Eragrostis
cilianensis |
| |
switchgrass |
Panicum
virgatum |
| |
timothy |
Phleum pratense |
| |
velvetgrass,
common |
Holcus
lanatus |
| |
vernalgrass, sweet |
Anthoxanthum odoratum |
| |
wild
rye, Canadian |
Elymus
canadensis |
| |
witchgrass |
Panicum
capillare |
| Polygonaceae
- Smartweed or Buckwheat Family |
| |
buckwheat,
wild |
Polygonum
convolvulus |
| |
dock,
broadleaf |
Rumex
obtusifolius |
| |
dock,
curly |
Rumex
crispus |
| |
knotweed, black fringed |
Polygonum cilinode |
| |
knotweed, giant |
Polygonum sachalinense |
| |
knotweed,
Japanese |
Polygonum
cuspidatum |
| |
knotweed,
prostrate |
Polygonum
aviculare |
| |
knotweed,
Virginia |
Tovara
virginiana |
| |
sorrel,
red/sheep sorrel |
Rumex
acetosella |
| |
smartweed,
hedge |
Polygonum
scandens |
| |
smartweed,
ladysthumb |
Polygonum
persicaria |
| |
smartweed,
Pennsylvania |
Polygonum
pensylvanicum |
| |
tearthumb,
arrowleaf |
Polygonum
sagittatum |
| |
tearthumb,
halberd-leaved |
Polygonum
arifolium |
| Polypodiaceae – Fern
Family |
| |
brackenfern |
Pteridium aquilinum |
| Portulacaceae
- Purslane Family |
| |
purslane,
common |
Portulaca
oleracea |
| Primulaceae
- Primrose Family |
| |
loosestrife,
fringed |
Lysimachia
ciliata |
| |
moneywort |
Lysimachia nummularia |
| |
pimpernel,
scarlet |
Anagallis
arvensis |
| R
|
| Ranunculaceae
- Buttercup Family |
| |
buttercup,
bulbous |
Ranunculus
bulbosus |
| |
celandine,
lesser |
Ranunculus
ficaria |
| |
buttercup,
smallflower |
Ranunculus
abortivus |
| |
buttercup,
tall |
Ranunculus
acris |
| |
buttercup,
creeping |
Ranunculus
repens |
| |
meadowrue,
tall |
Thalictrum polygamum |
| |
virgin's
bower |
Clematis
virginiana |
| Rosaceae
- Rose Family |
| |
agrimony |
Agrimonia
gryposepala |
| |
avens,
white |
Geum
canadense |
| |
cinquefoil,
old field |
Potentilla
simplex |
| |
cinquefoil,
rough |
Potentilla
norvegica |
| |
cinquefoil,
silvery |
Potentilla
argentea |
| |
cinquefoil,
sulfur |
Potentilla
recta |
| |
raspberry,
purple-flowering |
Rubus
odoratus |
| |
rose, multiflora |
Rosa multiflora |
| |
strawberry,
wild |
Fragaria
virginiana |
| |
wineberry |
Rubus
phoenicolasius |
| Rubiaceae
- Madder Family |
| |
bedstraw,
catchweed |
Galium
aparine |
| |
bedstraw,
hairy |
Galium
pilosum |
| |
bedstraw,
smooth |
Galium
mollugo |
| |
bluets |
Houstonia
caerulea |
| S
|
| Scrophulariaceae
- Figwort Family |
| |
figwort,
common |
Scrophularia
nodosa |
| |
kenilworth ivy |
Cymbalaria muralis |
| |
monkey
flower, sharp-winged |
Mimulus
alatus |
| |
mullein,
common |
Verbascum
thapsus |
| |
speedwell,
common |
Veronica
officinalis |
| |
speedwell,
corn |
Veronica
arvensis |
| |
speedwell, ivyleaf |
Veronica hederifolia |
| |
speedwell,
purslane |
Veronica
peregrina |
| |
speedwell,
thymeleaf |
Veronica
serpyllifolia |
| |
toadflax, oldfield |
Linaria canadensis |
| |
toadflax,
yellow |
Linaria
vulgaris |
Simaroubaceae - Quassia
Family |
| |
tree-of-heaven |
Ailanthus altissima |
| Smilacaceae - Catbrier Family |
| |
carrion
flower |
Smilax
herbacea |
| Solanaceae
- Nightshade Family |
| |
horsenettle |
Solanum
carolinense |
| |
jimsonweed |
Datura
stramonium |
| |
nightshade,
bittersweet |
Solanum
dulcamara |
| |
nightshade,
eastern black |
Solanum
ptycanthum |
| T
|
| Typhaceae - Cattail Family |
| |
cattail,
common |
Typha
latifolia |
| U
|
| Urticaceae
- Nettle Family |
| |
clearweed |
Pilea
pumila |
| |
nettle, stinging |
Urtica dioica |
| V
|
| Valerianaceae - Valerian Family |
| |
valerian,
common |
Valeriana
officinalis |
| Valerianaceae - Valerian Family |
| |
vervain,
blue |
Verbena
hastata |
| Violaceae
- Violet Family |
| |
violet,
common blue |
Viola
papilionacea |
| |
violet,
field |
Viola
arvensis |
Vitaceae - Grape Family |
| |
grape, wild |
Vitis spp. |
| |
porcelainberry |
Ampelopsis brevipedunculata |
| |
Virginia
creeper |
Parthenocissus
quinquefolia |
Sort
list by: Common Name
| Scientific Name | Family
Name
A | B | C | D | E | F | G | H |
I | J | K | L | M | N | O | P |
Q | R |S | T |U |V |
W | X | Y | Z
Number
of weeds currently in herbarium: 294
Number of images currently in herbarium: 2080 |
