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Weeds—A Pictorial of Some
Common Landscape Problems

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dandelion seeds, Rebekah D. Wallace, Bugwood.org

The word weed in the basic sense is one with virtually no class value, because a weed is a weed only if it's growing where it's not wanted or needed. In some cases, plants that we call weeds are used as food or as integral parts of the garden.

Weeds might be undesired for several reasons. Some are unattractive.

Others force out more desirable plants, or limit the amount of light that desirable plants need to thrive.

If you have poor soil, having weeds use nutrients earmarked for other plants can put them on the gardening hit list.

Some others may pass on a disease.

A few weeds are annoyances simply because they possess thorns or prickles, while others possess compounds that irritate the skin or are dangerous when consumed.

Still others have seed systems that come off and affix to hair or clothing, or pets.

Below is some information, pictures and remedies for some popular weeds widely claimed to be nuisances. Some of them look almost too pretty to be weeds, but the general consensus is that they're weeds.

Broadleaf Weeds

field bindweed, Phil Westra, Colorado State University, Bugwood.orgblack medic, Forest & Kim Starr, U.S. Geological Survey, Bugwood.orgbroadleaf plantain, James H. Miller, USDA Forest Service, Bugwood.org
field bindweed aka: creeping jenny, European bindweed, morningglory, perennial morningglory, smallflowered morning glory
black medic aka: black medick, black medic clover, black medick, hop clover, hop medic, nonesuch, yellow trefoil
broadleaf plantain aka: common plantain, broadleaf plantain, buckhorn plantain, great plantain, rippleseed plantain

buckhorn plantain, John D. Byrd, Mississippi State University, Bugwood.orgbur clover, Forest & Kim Starr, U.S. Geological Survey, Bugwood.orgCanada thistle,Cirsium arvense (L.) Scop., L.L. Berry,Bugwood.org
buckhorn plantain aka: narrowleaf plantain, buckhorn plantain, English plantain, lanceleaf Indianwheat, lanceleaf plantain, ribgrass, ribwort
bur clover aka: burclover, bur clover, California burclover, toothed medick
Canada thistle aka: Californian thistle, creeping thistle, field thistle

carpetweed, Mollugo verticillata L., Rebekah D. Wallace, Bugwood.orgcommon burdock, Arctium minus Bernh., John D. Byrd, Mississippi State University, Bugwood.orgcommon chickweed Stellaria pallida (Dumort.) Crépin Rebekah D. Wallace, Bugwood.org
carpetweed aka: green carpetweed
common burdock aka: lesser burrdock, bardane, beggar's button, burdock, common burdock, small burdock, smaller burdock, wild burdock, wild rhubarb
common chickweed aka: chickweed, nodding chickweed, stitchwort, starwort

creeping beggarweed Desmodium incanum DC. Forest & Kim Starr, U.S. Geological Survey, Bugwood.orgcurly dock, Rumex crispus L.,  Steve Dewey, Utah State University, Bugwood.orgslender cudweed, Gnaphalium exilifolium A. Nels.,  Dave Powell, USDA Forest Service, Bugwood.org,
creeping beggarweed aka: zarzabacoa comun
curly dock aka: Curley dock, narrowleaf dock, sour dock, yellow dock
slender cudweed

dandelion, Taraxacum officinale,  Dave Powell, USDA Forest Service, Bugwood.orgdichondra, Dichondra carolinensis Michx., Rebekah D. Wallace, Bugwood.orgEnglish daisy, Bellis perennis L., UAF Cooperative Extension Archive, University of Alaska - Fairbanks, Bugwood.org
dandelion aka: common dandelion, blowball, dandelion, faceclock
dichondra aka: Carolina ponysfoot
English daisy aka: lawndaisy, European daisy

evening primrose,  Oenothera biennis L., Forest & Kim Starr, U.S. Geological Survey, Bugwood.orgfalse dandelion,  James H. Miller, USDA Forest Service, Bugwood.orgredstem filaree  Forest & Kim Starr, U.S. Geological Survey, Bugwood.org
evening primrose aka: common eveningprimrose, evening primrose (common), hoary eveningprimrose, king's-cureall
false dandelion aka: Carolina desert-chicory, Carolina desert chicory, Carolina false dandelion, Carolina false-dandelion
redstem filaree aka: redstem stork's bill, alfilaree, alfilaria, California filaree, cutleaf filaree, filaree, red-stem stork's-bill, redstem, redstem filaree, stork's bill, storksbill

Florida pusley,  Richardia scabra L., Rebekah D. Wallace, Bugwood.orgground ivy, Glechoma hederacea L., John D. Byrd, Mississippi State University, Bugwood.orghenbit,  Lamium amplexicaule L., John D. Byrd, Mississippi State University, Bugwood.org
Florida pusley aka: rough Mexican clover
ground ivy aka: creeping charlie, gill-over-the-ground, groundivy, haymaids
henbit aka: henbit deadnettle, common henbit, giraffehead

Grassy Weeds

annual bluegrass, Poa annua L., Steve Dewey, Utah State University, Bugwood.orgbarnyardgrass, Echinochloa crus-galli,  Charles T. Bryson, USDA Agricultural Research Service, Bugwood.orgbermudagrass, Cynodon dactylon,  Steve Dewey, Utah State University, Bugwood.org
annual bluegrass aka: walkgrass
barnyardgrass aka: cockspur, Japanese millet, large barnyard grass, watergrass
bermudagrass aka: common bermudagrass, devilgrass

crabgrasssouthern,  Digitaria ciliaris,  Ted Bodner, Southern Weed Science Society, Bugwood.orgdallisgrass,  Paspalum dilatatum Poir., Rebekah D. Wallace, Bugwood.orgfoxtail giant  Setaria faberi Herrm.  John D. Byrd, Mississippi State University, Bugwood.org
southern crabgrass aka: fingergrass, Henry's crabgrass, kukaepua'a, saulangi, smooth crabgrass, Southern crab grass, tropical crabgrass
dallisgrass aka: dallas grass, dallis grass, herbe de miel, herbe sirop, hiku nua, palpalum dilate, water grass
giant foxtail aka: Japanese bristlegrass, Chinese foxtail, Chinese millet, giant bristlegrass, nodding foxtail

Woody Plants

giant ragweed, Ambrosia trifida,  Theodore Webster, USDA Agricultural Research Service, Bugwood.orgatlantic poison oak, Toxicodendron pubescens P. Mill.,  Ted Bodner, Southern Weed Science Society, Bugwood.orgeastern poison ivy,  Toxicodendron radicans,  Mark Czarnota, University of Georgia, Bugwood.org
giant ragweed aka: blood ragweed, horseweed, perennial ragweed, tall ragweed
atlantic poison oak
eastern poison ivy aka: poison ivy, poisonivy

kudzu, Pueraria montana var. lobata,  Rebekah D. Wallace, Bugwood.org  
kudzu  

Some of the information above was provided by The University of Georgia Center for Invasive Species and Ecosystem Health.

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