UMass Extension Landscape, Nursery and Urban Forestry Program

Weed Herbarium – by Family Name

Welcome to the UMass Extension Weed Herbarium! Weeds in the herbarium can be viewed by common name, scientific name, or plant family by using the menu tabs 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.

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Aizoaceae - Carpetweed Family
Common Name Scientific Name
carpetweed Mollugo verticillata
Amaranthaceae - Amaranth Family
Common Name Scientific Name
amaranth spiny Amaranthus spinosus
cottonweed Froelichia gracilis
pigweed livid Amaranthus lividus
pigweed red root Amaranthus retroflexus
Anacardiaceae - Cashew Family
Common Name Scientific Name
poison ivy Toxicodendron radicans
sumac smooth Rhus glabra
sumac staghorn Rhus typhina
Apiaceae (Umbelliferae) - Carrot Family
Common Name Scientific Name
alexanders golden Zizia aurea
angelica purplestem Angelica atropurpurea
aniseroot Osmorhiza longistilis
carrot wild Daucus carota
cicely sweet Osmorhiza claytoni
cow parsnip Heracleum lanatum
goutweed bishops Aegopodium podagraria
parsnip wild Pastinaca sativa
water hemlock spotted Cicuta maculata
Apocynaceae - Dogbane Family
Common Name Scientific Name
dogbane hemp Apocynum cannabinum
dogbane spreading Apocynum androsaemifolium
Araceae - Arum Family
Common Name Scientific Name
skunk cabbage common Symplocarpus foetidus
Araliaceae - Aralia Family
Common Name Scientific Name
devil's walkingstick Aralia spinosa
Asclepiadaceae - Milkweed Family
Common Name Scientific Name
milkweed common Asclepias syriaca
milkweed swamp Asclepias incarnata
swallowwort black Cynanchum nigrum
swallowwort pale Cynanchum rossicum
Asteraceae (Compositae) - Aster or Sunflower Family
Common Name Scientific Name
aster white wood Aster divaricatus
aster whorled Oclemena acuminata
beggarticks Bidens frondosa
black-eyed susan Rudbeckia hirta
boneset Eupatorium perfoliatum
burdock common Arctium minus
burdock great Arctium lappa
butterburdock Petasites hybridus
cat's ear Hypochaeris radicata
chicory Cichorium intybus
cocklebur Xanthium strumarium
coltsfoot Tussilago farfara
cup plant Silphium perfoliatum
daisy english Bellis perennis
daisy oxeye Chrysanthemum leucanthemum
dandelion fall Leontodon autumnalis
dandelion Taraxacum officinale
dogfennel Eupatorium capillifolium
fleabane Erigeron pulchellus
fleabane annual Erigeron annuus
galinsoga hairy Galinsoga ciliata
goldenrod Canada Solidago canadensis
goldenrod narrowleaf Solidago graminifolia
goldenrod seashore Solidago sempervirens
groundsel common Senecio vulgaris

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