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UMass Extension Weed Herbarium
 

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

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agrimony Agrimonia gryposepala Rosaceae - Rose Family
agrimony, tall hairy - see agrimony -
akebia, five-leaf Akebia quinata Lardizabalaceae - Lardizabala Family
alexanders, darkpurple - see purplestem angelica -
alexanders, golden Zizia aurea Apiaceae (Umbelliferae) - Carrot Family
alyssum, hoary Berteroa incana Brassicaceae (Cruciferae) - Mustard Family
amaranth, spiny Amaranthus spinosus Amaranthaceae - Amaranth Family
angelica, American - see purplestem angelica -
angelica, purplestem Angelica atropurpurea Apiaceae (Umbelliferae) - Carrot Family
aniseroot Osmorhiza longistilis Apiaceae (Umbelliferae) - Carrot Family
apple-of-Sodom - see horsenettle -
aster, white wood Aster divaricatus Asteraceae (Compositae) - Aster or Sunflower Family
avens, white Geum canadense Rosaceae - Rose Family
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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, hairy Galium pilosum Rubiaceae - Madder Family
bedstraw, smooth Galium mollugo Rubiaceae - Madder Family
beggarslice Hackelia virginiana Boraginaceae – Borage family
beggarticks, devil's Bidens frondosa Asteraceae (Compositae) - Aster or Sunflower
bellwort - see Venus lookingglass - 
belvedere - see kochia -
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 convolvulus Polygonaceae - Smartweed or Buckwheat Family
bugleweed, American Lycopus americanus Caryophyllaceae - Pink Family
bugloss, viper's - see blueweed -
burcucumber Sicyos angulatus Curcurbitaceae - Gourd Family
burdock, common Arctium minus Asteraceae (Compositae) - Aster or Sunflower Family
burdock, great Arctium lappa Asteraceae (Compositae) - Aster or Sunflower Family
burnweed, american - see pilewort -
bush clover, slender  Lespedeza virginica Fabaceae (Leguminosae) - Pea or Bean Family
butter-and-eggs - see toadflax, yellow -  
butterbur Petasites hybridus Asteraceae (Compositae) - Aster or Sunflower Family
butterbur-dock - see butterbur -
buttercup, bulbous Ranunculus bulbosus Ranunculaceae - Buttercup Family
buttercup, common - see buttercup, tall - 
buttercup, creeping Ranunculus repens Ranunculaceae - Buttercup Family
buttercup, fig - see celandine, lesser -
buttercup, kidney-leaved - see buttercup, smallflower -
buttercup, meadow - see buttercup, tall - 
buttercup, smallflower Ranunculus abortivus Ranunculaceae - Buttercup Family
buttercup, tall Ranunculus acris Ranunculaceae - Buttercup Family
butterprint - see velvetleaf -  
buttonweed - see velvetleaf -  
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campion, white - see cockle, white -
canarygrass, reed Phalaris arundinacea Poaceae (Graminae) - Grass Family
candlewicks - see mullein, common -
carelessweed - see pigweed, redroot -
carpenter's square - see figwort, common -
carpetweed Mollugo verticillata Aizoaceae - Carpetweed Family
carrion flower Smilax herbacea Smilacaceae - Catbrier Family
carrion vine - see carrion flower -
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 -
cattail, common Typha latifolia Typhaceae - Cattail Family
celandine, greater Chelidonium majus Papaveraceae - Poppy Family
celandine, lesser Ranunculus ficaria Ranunculaceae - Buttercup 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
chocolate vine - see akebia, five-leaf -
chrysanthemum, wild - see mugwort -
chufa - see nutsedge, yellow -
church steeples - see agrimony -
cicely, smoother sweet - see aniseroot -
cicely, woolly sweet - see cicely, sweet -
cicely, sweet Osmorhiza claytoni Apiaceae (Umbelliferae) - Carrot Family
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, alsike Trifolium hybridum Fabaceae (Leguminosae) - Pea or Bean Family
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 rhomboidea 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
cranesbill, spotted - see geranium, wild -
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 buttercup, smallflower -
crowfoot - see goosegrass -
crowfoot, kidney-leaved - see buttercup, smallflower -
crowfoot, smooth-leaved - see buttercup, smallflower -
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
cupplant Silphium perfoliatum Asteraceae (Compositae) - Aster or Sunflower Family
cypress, mock - see kochia -
cypress, summer - see kochia -
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daisy, blue - see chicory -
daisy, field - see daisy, oxeye -
daisy, oxeye Chrysanthemum leucanthemum Asteraceae (Compositae) - Aster or Sunflower Family
dallisgrass Paspalum dilatatum Poaceae (Graminae) - Grass 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 Commelina communis Commelinaceae - Spiderwort Family
deadnettle, purple - see deadnettle, red -
deadnettle, red Lamium purpureum Lamiaceae (Labiatae) - Mint Family
deertonguegrass Dicanthelium clandestinum Poaceae (Graminae) - Grass Family
deptford pink Dianthus armeria Caryophyllaceae - Pink 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 -
dogfennel Eupatorium capillifolium Asteraceae (Compositae) - Aster or Sunflower Family
dogbane, hemp Apocynum cannabinum Apocynaceae - Dogbane Family
dogbane, spreading                Apocynum androsaemifolium Apocynaceae - Dogbane Family
doorweed - see knotweed, prostrate -
downy cress - see brome, downy -
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eveningprimrose, common Oenothera biennis Onagraceae - Evening Primrose Family
everlasting pea - see peavine, everlasting -
everlasting pea, broad-leaved - see peavine, everlasting -
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false hellebore, green Veratrum viride Liliaceae - Lily Family
fat hen - see lambsquarters, common -
fennel, tall - see dogfennel -
fescue, tall Festuca arundinacea Poaceae (Graminae) - Grass Family
fieldcress, prostrate Rorippa x prostrata Brassicaceae (Cruciferae) - Mustard Family
figwort, common Scrophularia nodosa Scrophulariaceae - Figwort Family
figwort, knotted - see figwort, common -
filaree, redstem Erodium cicutarium Geranium - Geranium Family
fireweed Epilobium angustifolium Onagraceae - Evening Primrose Family
fireweed - see kochia -
fireweed, mexican - see kochia -
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
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galinsoga, hairy Galinsoga ciliata Asteraceae (Compositae) - Aster or Sunflower Family
garlic, field - see garlic, wild -
garlic, wild Allium vineale Liliaceae - Lily Family
geranium, wild Geranium maculatum Geraniaceae – Geranium 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, Jerusalem-oak Chenopodium botrys Chenopodiaceae - Goosefoot 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
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hawksbeard, narrowleaf Crepis tectorum Asteraceae (Compositae) - Aster or Sunflower Family
hawkweed Hieracium pratense Asteraceae (Compositae) - Aster or Sunflower Family
hawkweed, European Hieracium vulgatum Asteraceae (Compositae) - Aster or Sunflower Family
hawkweed, field - see hawkweed -
hawkweed, orange Hieracium aurantiacum Asteraceae (Compositae) - Aster or Sunflower Family
hawkweed, panicled Hieracium paniculatum Asteraceae (Compositae) - Aster or Sunflower Family
hayfever weed - see ragweed common -
healall Prunella vulgaris Lamiaceae (Labiatae) - Mint Family
heliotrope, garden - see valerian, common -
hellebore, false or Indian - see false hellebore, green -
hemp, American - see dogbane, hemp -
hemp, Indian - see dogbane, hemp -
henbit Lamium amplexicaule Lamiaceae (Labiatae) - Mint Family
herdgrass - see timothy -
hog-peanut Amphicarpaea bracteata Fabaceae (Leguminosae) - Pea or Bean Family
honeysuckle, Japanese Lonicera japonica Caprifoliaceae – Honeysuckle Family
horsebalm Collinsonia canadensis Lamiaceae (Labiatae) - Mint Family
horsenettle Solanum carolinense Solanaceae - Nightshade Family
horsetail, field Equisetum arvense Equisetaceae - Horsetail Family
horsetail, scouringrush - see scouring rush -
horseweed Conyza canadensis Asteraceae (Compositae) - Aster or Sunflower Family
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Indian poke - see false hellebore, green -
indiangrass, yellow Sorghastrum nutans Poaceae (Graminae) – Grass Family
inkberry - see pokeweed, common -
ironweed - see wingstem -
ivy-leaved toadflax - see kenilworth ivy -
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jacob's-ladder - see carrion flower -
jamestownweed - see jimsonweed -
Jerusalem artichoke Helianthus tuberosus Asteraceae (Compositae) - Aster or Sunflower Family
Jerusalem-oak - see goosefoot, Jerusalem-oak -
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 -
johnsongrass Sorghum halepense Poaceae (Graminae) – Grass Family
jumpseed - see knotweed, Virginia -
K Back to Top Back to Top    
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
kochia Kochia scoparia Chenopodiaceae - Goosefoot Family
kudzu Pueraria montana Fabaceae (Leguminosae) - Pea or Bean Family
kudzu-vine - see kudzu -
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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 -
lespedeza, Virginia - see bush clover, slender -
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 -
lily-of-the-valley, false Maianthemum canadense Liliaceae - Lily Family
lion's tooth - see dandelion -
little starwort Stellaria graminea

Caryophyllaceae - Pink Family
liverwort Marchantia polymorpha Phylum: Hepatophyta
lobelia, great Lobelia siphilitica Lobeliaceae - Bluebell Family
locust, bristly Robinia hispida Fabaceae (Leguminosae) - Pea or Bean Family
loosestrife, fringed Lysimachia ciliata Primulaceae - Primrose Family
loosestrife, purple Lythrum salicaria Lythraceae - Loosestrife Family
lovegrass - see stinkgrass -
lovegrass, purple Eragrotis spectabilis Poaceae (Graminae) - Grass Family
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madder, wild - see bedstraw, smooth -
maiden pink Dianthus deltoides Caryophyllaceae - Pink Family
mallow, common Malva neglecta Malvaceae - Mallow Family
mallow, round-leaved