List of 90 weed fact sheets
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Weeds: Annual bluegrass – Poa annua
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Weeds: Barnyardgrass – Echinochloa crus-galli
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Weeds: Bentgrass, creeping – Agrostis stolonifera
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Weeds: Bermudagrass – Cynodon dactylon
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Weeds: Birdfoot Trefoil – Lotus corniculatus
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Weeds: Bittercress (Shotweed, Hairy bittercress) – Cardamine hirsuta
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Weeds: Bittersweet nightshade (European bittersweet) – Solanum dulcamara
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Weeds: Black medic – Medicago lupulina
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Weeds: Blackberry (Himalayan, Evergreen, Pacific) – Rubus spp.
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Weeds: Blue mustard (Purple mustard, Tenella mustard) – Chorispora tenella
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Weeds: Brackenfern, western – Pteridium aquilinum
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Weeds: Buffalobur – Solanum rostratum
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Weeds: Bull thistle – Cirsium vulgare
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Weeds: Buttercup, creeping – Ranunculus repens
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Weeds: Butterfly bush – Buddleja davidii
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Weeds: Canada thistle – Cirsium arvense
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Weeds: Catchweed bedstraw (Cleavers) – Galium aparine
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Weeds: Catsear, common (False dandelion) – Hypochaeris radicata
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Weeds: Chickweed, common and mouseear – Stellaria media, Cerastium fontanum ssp. vulgare
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Weeds: Clover – Trifolium spp.
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Weeds: Comfrey – Symphytum officinale
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Weeds: Crabgrass – Digitaria spp.
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Weeds: Creeping Jenny: Lysimachia nummularia
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Weeds: Dandelion – Taraxacum officinale
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Weeds: Dock (Curly, Broadleaf) – Rumex spp.
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Weeds: Dodder – Cuscuta spp.
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Weeds: Downy brome (Cheatgrass, Downy chess) – Bromus tectorum
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Weeds: Dwarf mistletoes – Arceuthobium spp.
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Weeds: English daisy (Lawn daisy) – Bellis perennis
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Weeds: English ivy – Hedera helix
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Weeds: Field bindweed (Wild morningglory) – Convolvulus arvensis
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Weeds: Field pennycress (Fanweed) – Thlaspi arvense
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Weeds: Flixweed – Descurainia sophia
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Weeds: Foxtail (Green, Yellow, Bristly) – Setaria spp.
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Weeds: Garden loosestrife – Lysimachia vulgaris
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Weeds: Giant hogweed – Heracleum mantegazzianum
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Weeds: Goldenrods – Solidago spp.
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Weeds: Ground ivy – Glechoma hederacea
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Weeds: Groundsel, common – Senecio vulgaris
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Weeds: Hawkweeds – Hieracium spp.
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Weeds: Hedge bindweed – Calystegia sepium (Convolvulus sepium)
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Weeds: Henbit – Lamium amplexicaule
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Weeds: Herb Robert (Robert geranium, stinky Bob) – Geranium robertianum
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Weeds: Horsetails (Scouringrush) – Equisetum spp.
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Weeds: Horseweed (Marestail) – Conyza canadensis
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Weeds: Knapweeds – Centaurea spp.
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Weeds: Knotweeds (Bohemian, Giant, Japanese, Himalayan) – Polygonum spp.
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Weeds: Kochia – Kochia scoparia
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Weeds: Lambsquarters, common – Chenopodium album
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Weeds: Lesser celandine – Ficaria verna
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Weeds: Liverworts – Several species
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Weeds: Mallow, common (Cheeseweed, Buttonweed) – Malva neglecta
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Weeds: Nightshades – Solanum spp.
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Weeds: Oxalis (Creeping woodsorrel) – Oxalis corniculata
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Weeds: Parrotfeather and Eurasian watermilfoil – Myriophyllum spp.
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Weeds: Pineappleweed – Matricaria discoidea
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Weeds: Plantain (Broadleaf, Buckhorn) – Plantago spp.
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Weeds: Poison hemlock – Conium maculatum
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Weeds: Poison ivy and Poison oak – Toxicodendron spp. (Rhus spp.)
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Weeds: Pokeweed: Phytolacca americana
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Weeds: Prickly lettuce (China lettuce) – Lactuca serriola
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Weeds: Prostrate knotweed – Polygonum aviculare
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Weeds: Puncturevine (Tackweed, Goathead) – Tribulus terrestris
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Weeds: Purple deadnettle (Red deadnettle) – Lamium purpureum
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Weeds: Purple loosestrife (Purple lythrum) – Lythrum salicaria
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Weeds: Purslane, common – Portulaca oleracea
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Weeds: Quackgrass – Elymus repens (Elytrigia repens, Agropyron repens)
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Weeds: Red sorrel (Sheep sorrel) – Rumex acetosella
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Weeds: Redroot pigweed (Rough pigweed) – Amaranthus retroflexus
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Weeds: Redstem filaree (Stork’s bill, Crane’s bill) – Erodium cicutarium
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Weeds: Reed canarygrass – Phalaris arundinacea
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Weeds: Russian thistle (Tumbleweed) – Salsola tragus (S. iberica, S. kali)
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Weeds: Ryegrass, annual (Italian ryegrass) – Lolium perenne ssp. multiflorum
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Weeds: Salsify (Goatsbeard) – Tragopogon spp.
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Weeds: Scotch broom – Cytisus scoparius
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Weeds: Shepherd’s-purse – Capsella bursa-pastoris
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Weeds: Smartweeds – Polygonum spp.
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Weeds: Sowthistle, annual and perennial – Sonchus oleraceus, Sonchus arvensis
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Weeds: Speedwells – Veronica spp.
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Weeds: Spurges (Prostrate spurges) – Chamaesyce spp. (Euphorbia spp.)
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Weeds: Stinging nettle – Urtica dioica
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Weeds: St. Johnswort, common (Goatweed, Klamathweed) – Hypericum perforatum
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Weeds: Tansy ragwort – Senecio jacobaea
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Weeds: Tumblemustard (Jim Hill mustard) – Sisymbrium altissimum
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Weeds: Velvetgrass (Common velvetgrass) – Holcus lanatus
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Weeds: Velvetleaf – Abutilon theophrasti
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Weeds: Water primrose – Ludwigia uruguayensis (L. hexapetala)
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Weeds: Waterhemlock, western – Cicuta douglasii
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Weeds: Wild carrot (Queen Anne’s lace) – Daucus carota
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Weeds: Yellow nutsedge – Cyperus esculentus
Also see weed photo gallery