Weedy species

These species are found in waste places, open fields, and along roadsides. Species names are linked to individual pages. For a list of all plants and families in this flora, click here. 

​Bedstraw - Galium aparine

​Bindweed, field - Convolvulus arvensis

​Bindweed, hedge - Calystigia sepium

​Bitter-cress, hoary - Cardamine hirsuta

​Burdock - Arctium minus

​Buttercup, hispid - Ranunculus hispidus

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​Buttercup, small-flowered - Ranunculus micranthus

​Carpetweed - Mollugo verticillata

​Chickweed, common - Stellaria media

​Chickweed, mouse-eared - Cerastrium glomeratum

​​Clearweed - Pilea pumila

​Cocklebur - Xanthium strumarium

​Crabweed - Fatoua villosa

​Crane's-bill, cutleaf - Geranium dissectum

​Cress, mouse-ear - Arabidopsis thaliana

​Croton, tooth-leaved - Croton glandulosus

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​Cudweed, purple - Gamochaeta purpurea

​​Dandelion - Taraxacum officinale

​Dayflower - Commelina communis

​Dead-nettle, red - Lamium purpureum

​Dock, bitter - Rumex obtusifolius

​Dock, curly - Rumex crispus

​Eyebane - Euphorbia nutans

​Field-madder - Sherardia arvensis

​Flatsedge, globe - Cyperus echinatus

​Galinsoga - Galinsoga quadriradiata

​Garlic, field - Allium vineale

​Garlic, wild - Allium canadense

​Ground-ivy - Glechoma hederacea

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Hedge Mustard ​- Sisymbrium officinale

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​Hedge-mustard, Tall- Sisymbrium loeselli


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​Henbit - Lamium amplexicaule

​Horseweed - Conyza canadensis

​Knotweed, Japanese - Reynoutria japonica

​Korean-clover - Lespedeza stipulacea

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​Lady's Thumb - Persicaria maculosa

​Lamb's quarters - Chenopodium album

​Marsh elder, rough - Iva annua

​Morning-glory, common - Ipomoea purpurea

Nettle, stinging - Urtica dioica

​Peppergrass - Lepidium campestre

​Pigweed - Amaranthus spinosus

​Plantain, American - Plantago rugelii

​Plantain, English - Plantago lanceolata

Plantain, hoary - Plantago virginica

​Prairie tea - Croton monanthogynus

​Purslane - Portulaca oleracea

​Queen Anne's Lace - Daucus carota

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​Redstem filaree - Erodium cicutarium

​Sandmat - Euphorbia humistrata

​Shepherd's purse - Capsella bursa-pastoris

​Sida - Sida spinosa

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​Smartweed, long-bristled - Polygonum caespitosum

​Sorrel, sheep - Rumex acetosella

​​Speedwell, birdseye - Veronica persica

​​Speedwell, field - Veronica agrestis

​Speedwell, heath - Veronica officinalis

​Spring-cress - Cardamine rhomboidea

​Spurge, toothed  - Euphorbia dentata

​Teasel - Dipsacus fullonum

Thistle, Canada - Cirsium arvense

​Thistle, nodding - Carduus nutans

​Whitlow-grass, short-fruited - Draba brachycarpa

​Whitlow-grass, vernal - Draba verna

​Yerba-de-tajo - Eclipta prostrata