Weed Herbarium by Common Name - Landscape Nursery and Urban Forestry

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
alyssum, hoary	Berteroa incana	Brassicaceae (Cruciferae) - Mustard Family
amaranth, spiny	Amaranthus spinosus	Amaranthaceae - Amaranth Family
apple-of-Sodom	- see horsenettle -
aster, white wood	Aster divaricatus	Asteraceae (Compositae) - Aster or Sunflower Family
B
balsam apple	- see cucumber, wild -
balsam, Himalaya	Impatiens glandulifera	Balsaminaceae - Touch-me-not Family
bamboo, Mexican	- see knotweed, Japanese -
bamboo, Japanese	- see knotweed, Japanese -
barnyardgrass	Echinochloa crus-galli	Poaceae (Graminae) - Grass Family
bean, wild	- see groundnut -
bedstraw, annual	- see bedstraw, catchweed -
bedstraw, catchweed	Galium aparine	Rubiaceae - Madder Family
bedstraw, smooth	Galium mollugo	Rubiaceae - Madder Family
beggarticks, devil's	Bidens frondosa	Asteraceae (Compositae) - Aster or Sunflower
bellwort	- see Venus lookingglass -
bindweed, field	Convolvulus arvensis	Convolvulaceae - Morningglory Family
bindweed, fringed	- see knotweed, black fringed -
bindweed, hedge	Calystegia sepium	Convolvulaceae - Morningglory Family
bird's nest	- see carrot, wild -
bishops goutweed	Aegopodium podagraria	Apiaceae (Umbelliferae) - Carrot Family
bishops weed	- see bishops goutweed -
bitter	- see dock, broadleaf -
bittercress	Cardamine hirsuta	Brassicaceae (Cruciferae) - Mustard Family
bittercress, cuckoo	Cardamine pratensis	Brassicaceae (Cruciferae) - Mustard Family
bittersweet, asiatic	- see bittersweet, oriental -
bittersweet, oriental	Celastrus orbiculatus	Celastraceae - Stafftree Family
black-eyed susan	Rudbeckia hirta	Asteraceae (Compositae) - Aster or Sunflower Family
bladder campion	Silene vulgaris	Caryophyllaceae - Pink Family
blue devil	- see blueweed -
bluejoint	- see bluwestem, big -
bluegrass, annual	Poa annua	Poaceae (Graminae) - Grass Family
bluegrass, bulbous	Poa bulbosa	Poaceae (Graminae) - Grass Family
bluestem, big	Andropogon gerardii	Poaceae (Graminae) - Grass Family
bluestem, little	Andropogon scoparius	Poaceae (Graminae) - Grass Family
bluets	Houstonia caerulea	Rubiaceae - Madder Family
blueweeed	Echium vulgare	Boraginaceae - Borage Family
boneset	Eupatorium perfoliatum	Asteraceae (Compositae) - Aster or Sunflower Family
bouncingbet	Saponaria officinalis	Caryophyllaceae - Pink Family
brackenfern	Pteridium aquilinum	Polypodiaceae – Fern Family
brome, downy	Bromus tectorum	Poaceae (Graminae) - Grass Family
brome, drooping	- see brome, downy -
brome, smooth	Bromus inermis	Poaceae (Graminae) - Grass Family
broombeard grass	- see bluestem, little -
buckhorn	- see plantain, narrowleaf -
buckwheat, wild	Polygonum scandens	Polygonaceae - Smartweed or Buckwheat Family
bugloss, viper's	- see blueweed -
burcucumber	Sicyos angulatus	Curcurbitaceae - Gourd Family
burdock, common	Arctium minus	Asteraceae (Compositae) - Aster or Sunflower Family
burnweed, american	- see pilewort -
butter-and-eggs	- see toadflax, yellow -
buttercup, bulbous	Ranunculus bulbosus	Ranunculaceae - Buttercup Family
buttercup, common	- see buttercup, tall -
buttercup, meadow	- see buttercup, tall -
buttercup, tall	Ranunculus acris	Ranunculaceae - Buttercup Family
butterprint	- see velvetleaf -
buttonweed	- see velvetleaf -
C
campion, white	- see cockle, white -
canarygrass, reed	Phalaris arundinacea	Poaceae (Graminae) - Grass Family
candlewicks	- see mullein, common -
carelessweed	- see pigweed, redroot -
carpetweed	Mollugo verticillata	Aizoaceae - Carpetweed Family
carrot, wild	Daucus carota	Apiaceae (Umbelliferae) - Carrot Family
catchweed	- see bedstraw, catchweed -
cat's ear	Hypochaeris radicata	Asteraceae (Compositae) -Aster or Sunflower Family
catsear, spotter	- see cat's ear -
celandine, greater	Chelidonium majus	Papaveraceae - Poppy Family
chamomile, rayless	- see pineappleweed -
charlock	- see mustard, wild -
cheat	- see brome, downy -
cheatgrass	- see brome, downy -
cheeses	- see mallow, common -
chickweed, common	Stellaria media	Caryophyllaceae - Pink Family
chickweed, indian	- see carpetweed -
chickweed, mouseear	Cerastium vulgatum	Caryophyllaceae - Pink Family
chickweed, red	- see pimpernel, scarlet -
chicory	Cichorium intybus	Asteraceae (Compositae) - Aster or Sunflower Family
chrysanthemum, wild	- see mugwort -
chufa	- see nutsedge, yellow -
cinquefoil, common	- see cinquefoil, old field -
cinquefoil, old field	Potentilla simplex	Rosaceae - Rose Family
cinquefoil, rough	Potentilla norvegica	Rosaceae - Rose Family
cinquefoil, round-fruited	- see cinquefoil, sulfur -
cinquefoil, silvery	Potentilla argentea	Rosaceae - Rose Family
cinquefoil, sulfur	Potentilla recta L	Rosaceae - Rose Family
clearweed	Pilea pumila	Urticaceae - Nettle Family
cleavers	- see bedstraw, catchweed -
clematis, wild	- see virgin's bower -
clover, dutch	- see clover, white -
clover, old field	- see clover, rabbitfoot -
clover, purple	- see clover, red -
clover, rabbitfoot	Trifolium arvense	Fabaceae (Leguminosae) - Pea or Bean Family
clover, red	Trifolium pratense	Fabaceae (Leguminosae) - Pea or Bean Family
clover, stone	- see clover, rabbitfoot -
clover, white	Trifolium repens	Fabaceae (Leguminosae) - Pea or Bean Family
cocklebur	Xanthium strumarium	Asteraceae (Compositae) - Aster or Sunflower Family
cockle, white	Silene alba	Caryophyllaceae - Pink Family
cockspur grass	- see barnyardgrass -
coltsfoot	Tussilago farfara	Asteraceae (Compositae) - Aster or Sunflower Family
compass weed	- see lettuce, prickly -
compass plant	- see lettuce, prickly -
copper-leaf, Virginia	Acalypha virginica	Euphorbiaceae - Spurge Family
cottonweed	Froelichia gracilis	Amaranthaceae - Amaranth Family
couchgrass	- see quackgrass -
cowbane	- see waterhemlock, spotted -
cowcress	- see pepperweed, field -
cowparsnip	Heracleum lanatum	Apiaceae (Umbelliferae) - Carrot Family
crabgrass, hairy	- see crabgrass, large -
crabgrass, large	Digitaria sanguinalis	Poaceae (Graminae) - Grass Family
crabgrass, silver	- see goosegrass -
crabgrass, small	- see crabgrass, smooth -
crabgrass, smooth	Digitaria ischaemum	Poaceae (Graminae) - Grass Family
creeping bentgrass	Agrostis stolonifera, Agrostis palustris	Poaceae (Graminae) - Grass Family
creeping charlie	- see ground ivy -
cress, mouse-ear	Arabidopsis thaliana	Bassicaceae (Cruciferae) - Mustard Family
creeping jenny	- see moneywort -
cress, winter	- see rocket, yellow -
crowfoot	- see goosegrass -
crowfoot, tall	- see buttercup, tall -
crownvetch, trailing	Coronilla varia	Fabaceae (Leguminosae) - Pea or Bean Family
cuckooflower	- see bittercress, cuckoo -
cuckooflower	- see ragged robin -
cucumber, wild	Echinocystis lobata	Cucurbitaceae - Gourd Family
D
daisy, blue	- see chicory -
daisy, field	- see daisy, oxeye -
daisy, oxeye	Chrysanthemum leucanthemum	Asteraceae (Compositae) - Aster or Sunflower Family
dame's violet	- see damesrocket -
damesrocket	Hesperis matronalis	Brassicaceae (Cruciferae) - Mustard Family
dandelion	Taraxacum officinale	Asteraceae (Compositae) - Aster or Sunflower Family
dandelion, fall	Leontodon autumnalis	Asteraceae (Compositae) - Aster or Sunflower Family
dandelion, false	- see cat's ear -
dayflower, Asiatic	Commelia communis	Commelinaceae - Spiderwort Family
deadnettle, purple	- see deadnettle, red -
deadnettle, red	Lamium purpureum	Lamiaceae (Labiatae) - Mint Family
deertonguegrass	Dicanthelium clandestinum	Poaceae (Graminae) - Grass Family
devilgrass	- see quackgrass -
devil's apple	- see jimsonweed -
devil's paintbrush	- see hawkweed, orange -
devil's tomato	- see horsenettle -
dock, broadleaf	Rumex obtusifolius	Polygonaceae - Smartweed or Buckwheat Family
dock, curled	- see dock curly -
dock, curly	Rumex crispus	Polygonaceae - Smartweed or Buckwheat Family
dock, narrowleaf	- see dock, curly -
dock, red-veined	- see dock, broadleaf -
dock, sour	- see dock, curly -
dock, velvet	- see mullein, common -
dock, yellow	- see dock, curly -
dodder	Cuscuta spp.	Convolvulaceae - Morningglory Family
dog-strangle vine	- see swallowwort, black -
dogbane, hemp	Apocynum cannabinum	Apocynaceae - Dogbane Family
dogbane, spreading	Apocynum androsaemifolium	Apocynaceae - Dogbane Family
doorweed	- see knotweed, prostrate -
downy cress	- see brome, downy -
E
eveningprimrose, common	Oenothera biennis	Onagraceae - Evening Primrose Family
F
fat hen	- see lambsquarters, common -
fescue, tall	Festuca arundinacea	Poaceae (Graminae) - Grass Family
fieldcress, prostrate	Rorippa x prostrata	Brassicaceae (Cruciferae) - Mustard Family
filaree, redstem	Erodium cicutarium	Geranium - Geranium Family
fireweed	Epilobium angustifolium	Onagraceae - Evening Primrose Family
flannelleaf	- see mullein, common -
fleabane, annual	Erigeron annuus	Asteraceae (Compositae) - Aster or Sunflower Family
fleabane, poor-robin	Erigeron pulchellus	Asteraceae (Compositae) - Aster or Sunflower Family
flower-of-an-hour	- see mallow, venice -
four-o'clock, wild	Mirabilis nyctaginea	Nyctaginaceae - Four-O'clock Family
foxtail, giant	Setaria faberi	Poaceae (Graminae) - Grass Family
foxtail, golden	- see foxtail, yellow -
foxtail, yellow	Setaria glauca	Poaceae (Graminae) - Grass Family
G
galinsoga, hairy	Galinsoga ciliata	Asteraceae (Compositae) - Aster or Sunflower Family
garlic, field	- see garlic, wild -
garlic, wild	Allium vineale	Liliaceae - Lily Family
gill-over-the-ground	- see ground ivy -
gipsyweed	- see speedwell, common -
goat's-beard, yellow	- see salsify, yellow -
golden-thread vine	- see dodder -
goldenrod, Canada	Solidago canadensis	Asteraceae (Compositae) - Aster or Sunflower Family
goldenrod, grass-leaved	- see goldenrod, narrowleaf -
goldenrod, lance-leaved	- see goldenrod, narrowleaf -
goldenrod, narrowleaf	Solidago graminifolia	Asteraceae (Compositae) - Aster or Sunflower Family
goldenod, seashore	Solidago sempervirens	Asteraceae (Compositae) - Aster or Sunflower Family
goosefoot, white	- see lambsquarters, common -
goosegrass	Eleusine indica	Poaceae (Graminae) - Grass Family
goutweed	- see bishops goutweed -
grape, wild	Vitis spp.	Vitaceae - Grape Family
grassleaf starwort	- see starwort, little -
greasegrass	- see purpletop -
ground ivy	Glechoma hederacea	Lamiaceae (Labiatae) - Mint Family
groundelder	- see bishops goutweed -
groundnut	Apios americana	Fabaceae (Leguminosae) - Pea or Bean Family
groundsel, common	Senecio vulgaris	Asteraceae (Compositae) - Aster or Sunflower Family
H
hawkweed	Hieracium pratense	Asteraceae (Compositae) - Aster or Sunflower Family
hawkweed, field	- see hawkweed -
hawkweed, orange	Hieracium aurantiacum	Asteraceae (Compositae) - Aster or Sunflower Family
hawksbeard, narrowleaf	Crepis tectorum	Asteraceae (Compositae) - Aster or Sunflower Family
hayfever weed	- see ragweed common -
healall	Prunella vulgaris	Lamiaceae (Labiatae) - Mint Family
hemp, American	- see dogbane, hemp -
hemp, Indian	- see dogbane, hemp -
henbit	Lamium amplexicaule	Lamiaceae (Labiatae) - Mint Family
herdgrass	- see timothy -
horsenettle	Solanum carolinense	Solanaceae - Nightshade Family
horsetail, field	Equisetum arvense	Equisetaceae - Horsetail Family
horseweed	Conyza canadensis	Asteraceae (Compositae) - Aster or Sunflower Family
I
indiangrass, yellow	Sorghastrum nutans	Poaceae (Graminae) – Grass Family
inkberry	- see pokeweed, common -
ivy-leaved toadflax	- see kenilworth ivy -
J
jamestownweed	- see jimsonweed -
Jerusalem artichoke	Helianthus tuberosus	Asteraceae (Compositae) - Aster or Sunflower Family
jewelweed	- see touch-me-not, spotted -
jewelweed, pale	- see touch-me-not, pale -
jewgrass	- see stiltgrass, Japanese -
jimsonweed	Datura stramonium	Solanaceae - Nightshade Family
joe-pye weed, eastern	Eupatorium dubium	Asteraceae (Compositae) - Aster or Sunflower Family
joe-pye weed, hollow-stemmed	Eupatorium fistulosum	Asteraceae (Compositae) - Aster or Sunflower Family
joe-pye weed, spotted	Eupatorium maculatum	Asteraceae (Compositae) - Aster or Sunflower Family
johnny-jump-ups	- see violet, field -
jumpseed	- see knotweed, Virginia -
K
kenilworth ivy	Cymbalaria muralis	Scrophulariaceae - Figwort Family
king devil	- see hawkweed -
king-of-the-meadow	- see meadowrue, tall -
knapweed, spotted	Centaurea maculosa	Asteraceae (Compositae) - Aster or Sunflower Family
knawel	Scleranthus annuus	Caryophyllaceae - Pink Family
knotweed, black fringed	Polygonum cilinode	Polygonaceae - Smartweed or Buckwheat Family
knotweed, German	- see knawel -
knotweed, giant	Polygonum sachalinense	Polygonaceae - Smartweed or Buckwheat Family
knotweed, Japanese	Polygonum cuspidatum	Polygonaceae - Smartweed or Buckwheat Family
knotweed, Mexican	- see knotweed, Japanese -
knotweed, pink	- see smartweed, Pennsylvania -
knotweed, prostrate	Polygonum aviculare	Polygonaceae - Smartweed or Buckwheat Family
knotweed, Virginia	Tovara virginiana	Polygonaceae - Smartweed or Buckwheat Family
kudzu	Pueraria montana	Fabaceae (Leguminosae) - Pea or Bean Family
kudzu-vine	- see kudzu -
L
lady's smock	- see bittercress, cuckoo -
lambsquarters, common	Chenopodium album	Chenopodiaceae - Goosefoot Family
lawngrass, Japanese	Zoysia japonica	Poaceae (Graminae) – Grass Family
lawngrass, Korean	- see lawngrass, Japanese -
lettuce, biennial	Lactuca biennis	Asteraceae (Compositae) - Aster or Sunflower Family
lettuce, canada	- see lettuce, tall -
lettuce, prickly	Lactuca serriola	Asteraceae (Compositae) - Aster or Sunflower Family
lettuce, tall	Lactuca canadensis	Asteraceae (Compositae) - Aster or Sunflower Family
lettuce, tall blue	- see lettuce, biennial -
lettuce, wild	- see lettuce, tall -
lion's tooth	- see dandelion -
little starwort	Stellaria graminea	Caryophyllaceae - Pink Family
liverwort	Marchantia polymorpha	Phylum: Hepatophyta
loosestrife, purple	Lythrum salicaria	Lythraceae - Loosestrife Family
lovegrass	- see stinkgrass -
lovegrass, purple	Eragrotis spectabilis	Poaceae (Graminae) - Grass Family
M
madder, wild	- see bedstraw, smooth -
maiden pink	Dianthus deltoides	Caryophyllaceae - Pink Family
mallow, common	Malva neglecta	Malvaceae - Mallow Family
mallow, round-leaved	- see mallow, common -
mallow, indian	- see velvetleaf -
mallow, low	- see mallow, common -
mallow, venice	Hibicus trionum	Malvaceae - Mallow Family
marestail	- see horseweed -
markweed	- see poison-ivy -
Mary's grass	- see stiltgrass, Japanese -
matgrass	- see knotweed, prostrate -
mayweed	- see pineappleweed -
meadowrue, tall	Thalictrum polygamum	Ranunculaceae - Buttercup Family
mealweed	- see lambsquarters, common -
medic, black	Medicago lupulina	Fabaceae (Leguminosae) - Pea or Bean Family
melilot	- see copper-leaf, Virginia -
mexicantea	Chenopodium ambrosioides	Chenopodiaceae - Goosefoot Family
mercuryweed	- see mallow, common -
milfoil	- see yarrow -
milkmaid	- see bittercress, cuckoo -
milkweed, climbing	- see swallowwort, pale -
milkweed, climbing	- see swallowwort, black -
milkweed, common	Asclepias syriaca	Asclepiadaceae - Milkweed Family
millet, wild	- see foxtail, yellow -
moneywort	Lysimachia nummularia	Primulaceae - Primrose Family
morningglory, wild	- see bindweed, field -
morningglory, wild	- see bindweed, hedge -
motherwort	Leonurus cardiaca	Lamiaceae (Labiatae) - Mint Family
mugwort	Artemisia vulgaris	Asteraceae (Compositae) - Aster or Sunflower Family
mullein, common	Verbascum thapsus	Scrophulariaceae - Figwort Family
mullein, moth	Verbascum blattaria	Scrophulariaceae - Figwort Family
mustard, field	- see mustard, wild -
mustard, garlic	Alliaria petiolata	Brassicaceae (Cruciferae) - Mustard Family
mustard, tower	Arabis glabra	Brassicaceae (Cruciferae) - Mustard Family
mustard, wild	Brassica kaber	Brassicaceae (Cruciferae) - Mustard Family
N
neckweed	- see speedwell, purslane -
Nepalese browntop	- see stiltgrass, Japanese -
nettle, stinging	Urtica dioica	Urticaceae - Nettle Family
nightshade, bittersweet	Solanum dulcamara	Solanaceae - Nightshade Family
nightshade, climbing	- see nightshade, bittersweet -
nightshade, deadly	- see nightshade, eastern black -
nightshade, eastern black	Solanum ptycanthum	Solanaceae - Nightshade Family
nimblewill	Muhlenbergia schreberi	Poaceae (Graminae) - Grass Family
nipplewort	Lapsana communis	Asteraceae (Compositae) - Aster or Sunflower Family
nut-grass	- see nutsedge, yellow -
nutgrass, German	- see knawel -
nutsedge, yellow	Cyperus esculentus	Cyperaceae - Sedge Family
O
orchardgrass	Dactylis glomerata	Poaceae (Graminae) - Grass Family
oxalis	- see woodsorrel, yellow -
oxalis	- see woodsorrel, creeping -
P
paintbrush, yellow	- see hawkweed -
panicgrass, round fruited	Dicanthelium sphaerocarpon	Poaceae (Graminae) - Grass Family
panicum, fall	Panicum dichotomiflorum	Poaceae (Graminae) - Grass Family
pansy, field	- see violet, field -
pansy, wild	- see violet, field -
parsnip, field	- see parsnip, wild -
parsnip, wild	Pastinaca sativa	Apiaceae (Umbelliferae) - Carrot Family
paspalum	Paspalum setaceum	Poaceae (Graminae) - Grass Family
pearly-everlasting	Anaphalis margaritacea	Asteraceae (Compositae) - Aster or Sunflower Family
pennycress, field	Thlaspi arvense	Brassicaceae (Cruciferae) - Mustard Family
peppergrass, wild	- see pepperweed, Virginia -
peppergrass, field	- see pepperweed, field -
pepperweed, field	Lepidium campestre	Brassicaceae (Cruciferae) - Mustard Family
pepperweed, Virginia	Lepidium virginicum	Brassicaceae (Cruciferae) - Mustard Family
piemaker	- see velvetleaf -
pigeon berry	- see pokeweed, common -
pigweed, livid	Amaranthus lividus	Amaranthaceae - Amaranth Family
pigweed, redroot	Amaranthus retroflexus	Amaranthaceae - Amaranth Family
pigweed, spiny	- see amaranth, spiny -
pilewort	Erechtites hieraciifolia	Asteraceae (Compositae) - Aster or Sunflower Family
pimpernel, scarlet	Anagallis arvensis	Primulaceae - Primrose Family
pineappleweed	Matricaria matricariodes	Asteraceae (Compositae) - Aster or Sunflower Family
pinkweed	- see smartweed, Pennsylvania -
plantain, broadleaf	Plantago major	Plantaginaceae - Plantain Family
plantain, buckhorn	- see plantain, narrowleaf -
plantain, common	- see plantain, broadleaf -
plantain, dooryard	- see plantain, broadleaf -
plantain, English	- see plantain, narrowleaf -
plantain, narrowleaf	Plantago lanceolata	Plantaginaceae - Plantain Family
poison-ivy	Toxicodendron radicans	Anacardiaceae - Cashew Family
poke	- see pokeweed, common -
pokeberry	- see pokeweed, common -
pokeweed, common	Phytolacca americana	Phytolaccaceae - Pokeweed Family
poor man's weatherglass	- see pimpernel, scarlet -
porcelainberry	Ampelopsis brevipedunculata	Vitaceae - Grape Family
portulaca, wild	- see purslane, common -
potato bean	- see groundnut -
purpletop	Tridens flavus	Poaceae (Graminae) - Grass Family
purslane, common	Portulaca oleracea	Portulacaceae - Purslane Family
pursley	- see purslane, common -
pussytoes, field	Antennaria neglecta	Asteraceae (Compositae) - Aster or Sunflower Family
Q
quackgrass	Elytrigia repens	Poaceae (Graminae) - Grass Family
quaker ladies	- see bluets -
Queen Anne's lace	- see carrot, wild -
quickweed	- see galinsoga, hairy -
R
radish, wild	Raphanus raphanistrum	Brassicaceae (Cruciferae) - Mustard Family
ragged robin	Lychnis flos-cuculi	Caryophyllaceae - Pink Family
ragweed, common	Ambrosia artemisiifolia	Asteraceae (Compositae) - Aster or Sunflower Family
ragweed, giant	Ambrosia trifida	Asteraceae (Compositae) - Aster or Sunflower Family
ragweed, great	- see ragweed, giant -
ragwort	- see groundsel, common -
ragwort, tansy	Senecio jacobaea	Asteraceae (Compositae) - Aster or Sunflower Family
redtop, tall	- see purpletop -
ribgrass	- see plantain, narrowleaf -
ribwort	- see plantain, narrowleaf -
richweed	- see clearweed -