Weeds Identification Gallery
Weeds
| Common Name | Scientific Name | Family | Category |
|---|---|---|---|
| Amaranth, low | Amaranthus deflexus | Amaranthaceae (Pigweed Family) | Broadleaf |
| Amaranth, Palmer | Amaranthus palmeri | Amaranthaceae (Pigweed Family) | Broadleaf |
| Arrowhead, California | Sagittaria montevidensis | Alismataceae (Waterplantain Family) | Aquatic, Broadleaf |
| Arrowhead, Gregg | Sagittaria longiloba | Alismataceae (Waterplantain Family) | Aquatic, Broadleaf |
| Barb goatgrass | Aegilops triuncialis | Poaceae (Grass Family) | Grass |
| Barley, foxtail | Hordeum jubatum | Poaceae (Grass Family) | Grass |
| Barley, hare | Hordeum murinum ssp. leporinum | Poaceae (Grass Family) | Grass |
| Barnyardgrass | Echinochloa crus-galli | Poaceae (Grass Family) | Grass |
| Bassia, fivehook | Bassia hyssopifolia | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Bedstraw, catchweed | Galium aparine | Rubiaceae (Madder Family) | Broadleaf |
| Bentgrasses | Agrostis spp. | Poaceae (Grass Family) | Grass |
| Bermudagrass | Cynodon dactylon | Poaceae (Grass Family) | Grass |
| Bindweed, field | Convolvulus arvensis | Convolvulaceae (Morningglory Family) | Broadleaf |
| Bittercress, little | Cardamine oligosperma | Brassicaceae (Mustard Family) | Broadleaf |
| Blackberries, wild | Rubus spp. | Rosaceae (Rose Family) | Broadleaf |
| Bluegrass, annual | Poa annua | Poaceae (Grass Family) | Grass |
| Bluegrass, roughstalk | Poa trivialis | Poaceae (Grass Family) | Grass |
| Brassbuttons, Mexican | Cotula Mexicana | Asteraceae (Sunflower Family) | Broadleaf |
| Brassbuttons, Southern | Cotula australis | Asteraceae (Sunflower Family) | Broadleaf |
| Brome, ripgut | Bromus diandrus | Poaceae (Grass Family) | Grass |
| Brome, soft | Bromus hordeaceus | Poaceae (Grass Family) | Grass |
| Bromegrasses | Bromus spp. | Poaceae (Grass Family) | Grass |
| Broomrape, branched | Phelipanche ramosa | Orobanchaceae (Broomrape Family) | Broadleaf |
| Buckwheat, wild | Polygonum convolvulus | Polygonaceae (Buckwheat family) | Broadleaf |
| Bulrush, ricefield | Scirpus mucronatus | Cyperaceae (Sedge Family) | Aquatic, Sedge |
| Bulrush, river | Scirpus fluviatilis | Cyperaceae (Sedge Family) | Aquatic, Sedge |
| Burhead, upright | Echinodorus berteroi (E. cordifolius) | Alismataceae (Waterplantain Family) | Aquatic, Broadleaf |
| Burclover, California | Medicago polymorpha | Fabaceae (Pea or Bean Family) | Broadleaf |
| Burweed, lawn | Soliva sessilis | Asteraceae (Sunflower Family) | Broadleaf |
| Buttercup, Bermuda (Buttercup oxalis) | Oxalis pes-caprae | Oxalidaceae (Oxalis Family) | Broadleaf |
| Buttercup, roughseed | Ranunculus muricatus | Ranunculaceae (Buttercup Family) | Broadleaf |
| Canarygrass, hood | Phalaris paradoxa | Poaceae (Grass Family) | Grass |
| Canarygrass, littleseed | Phalaris minor | Poaceae (Grass Family) | Grass |
| Carrot, wild | Daucus carota | Apiaceae (Carrot Family) | Broadleaf |
| Catsear, common | Hypochaeris radicata | Asteraceae (Sunflower Family) | Broadleaf |
| Cattails | Typha spp. | Typhaceae (Cattail Family) | Aquatic |
| Celery, wild | Cyclospermum leptophyllum | Apiaceae (Carrot family) | Broadleaf |
| Chamomile, mayweed | Anthemis cotula | Asteraceae (Sunflower Family) | Broadleaf |
| Chickweed, common | Stellaria media | Caryophyllaceae (Pink Family) | Broadleaf |
| Chickweed, mouseear | Cerastium fontanum ssp. vulgare | Caryophyllaceae (Pink Family) | Broadleaf |
| Clover, strawberry | Trifolium fragiferum | Fabaceae (Pea or Bean Family) | Broadleaf |
| Clover, white | Trifolium repens | Fabaceae (Pea or Bean Family) | Broadleaf |
| Cocklebur, common | Xanthium strumarium | Asteraceae (Sunflower Family) | Broadleaf |
| Crabgrasses | Digitaria spp. | Poaceae (Grass Family) | Grass |
| Crabgrass, large | Digitaria sanguinalis | Poaceae (Grass Family) | Grass |
| Crabgrass, smooth | Digitaria ischaemum | Poaceae (Grass Family) | Grass |
| Cudweed, purple | Gnaphalium purpureum | Asteraceae (Sunflower Family) | Broadleaf |
| Cudweeds | Gnaphalium spp. | Asteraceae (Sunflower Family) | Broadleaf |
| Cupgrass, Southwestern | Eriochloa acuminata | Poaceae (Grass Family) | Grass |
| Cupgrass, prairie | Eriochloa contracta | Poaceae (Grass Family) | Grass |
| Daisy, English | Bellis perennis | Asteraceae (Sunflower Family) | Broadleaf |
| Dallisgrass | Paspalum dilatatum | Poaceae (Grass Family) | Grass |
| Dandelion | Taraxacum officinale | Asteraceae (Sunflower Family) | Broadleaf |
| Dichondra, kidney-weed | Dichondra repens | Convolvulaceae (Morningglory Family) | Broadleaf |
| Dock, curly | Rumex crispus | Polygonaceae (Buckwheat Family) | Broadleaf |
| Dodder | Cuscuta spp. | Convolvulaceae (Morningglory Family) | Broadleaf |
| Ducksalad | Heteranthera limosa | Pontedericaceae (Pickerelweed Family) | Aquatic, Broadleaf |
| Fescue, tall | Festuca arundinacea | Poaceae (Grass Family) | Grass |
| Fiddlenecks | Amsinckia spp. | Boraginaceae (Borage Family) | Broadleaf |
| Fiddleneck, coast | Amsinckia menziesii var. intermedia | Boraginaceae (Borage Family) | Broadleaf |
| Filaree, whitestem | Erodium moschatum | Geraniaceae (Geranium Family) | Broadleaf |
| Filarees | Erodium spp. | Geraniaceae (Geranium Family) | Broadleaf |
| Fleabane, hairy | Conyza bonariensis | Asteraceae (Sunflower Family) | Broadleaf |
| Flixweed | Descurainia sophia | Brassicaceae (Mustard Family) | Broadleaf |
| Fluvellins | Kickxia spuria, K. elatine | Scrophulariaceae (Figwort Family) | Broadleaf |
| Foxtail, yellow | Setaria pumila | Poaceae (Grass Family) | Grass |
| Foxtails | Setaria spp. | Poaceae (Grass Family) | Grass |
| Garlic, wild | Allium vineale | Liliaceae (Lily Family) | Broadleaf |
| Geranium, cutleaf | Geranium dissectum | Geraniaceae (Geranium Family) | Broadleaf |
| Goosefoot, nettleleaf | Chenopodium murale | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Goosegrass | Eleusine indica | Poaceae (Grass Family) | Grass |
| Groundcherries | Physalis spp. | Solanaceae (Nightshade Family) | Broadleaf |
| Groundcherry, tomatillo | Physalis philadelphica | Solanaceae (Nightshade Family) | Broadleaf |
| Groundsel, common | Senecio vulgaris | Asteraceae (Sunflower Family) | Broadleaf |
| Healall | Prunella vulgaris var. vulgaris | Lamiaceae (Mint Family) | Broadleaf |
| Hemlock, poison | Conium maculatum | Apiaceae (Carrot Family) | Broadleaf |
| Henbit | Lamium amplexicaule | Lamiaceae (Mint Family) | Broadleaf |
| Horseweed | Conyza canadensis | Asteraceae (Sunflower Family) | Broadleaf |
| Jimsonweed | Datura stramonium | Solanaceae (Nightshade Family) | Broadleaf |
| Johnsongrass | Sorghum halepense | Poaceae (Grass Family) | Grass |
| Junglerice | Echinochloa colona | Poaceae (Grass Family) | Grass |
| Kikuyugrass | Pennisetum clandestinum | Poaceae (Grass Family) | Grass |
| Knapweed, Russian | Acroptilon repens | Asteraceae (Sunflower Family) | Broadleaf |
| Knotgrass | Paspalum distichum | Poaceae (Grass Family) | Grass |
| Knotweed, common | Polygonum aviculare ( formerly arenastrum) | Polygonaceae (Buckwheat Family) | Broadleaf |
| Kochia | Kochia scoparia | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Kyllinga, green | Kyllinga brevifolia | Cyperaceae (Sedge Family) | Sedge |
| Ladysthumb | Polygonum persicaria | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Lambsquarters, common | Chenopodium album | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Lettuce, prickly | Lactuca serriola | Asteraceae (Sunflower Family) | Broadleaf |
| Lettuce, Miner's | Claytonia perfoliata | Portulacaceae (Purslane Family) | Broadleaf |
| Lovegrasses | Eragrostis spp. | Poaceae (Grass Family) | Grass |
| Madder, field | Sherardia arvensis | Rubiaceae (Madder Family) | Broadleaf |
| Mallow, alkali | Malvella leprosa | Malvaceae (Mallow Family) | Broadleaf |
| Mallow, bristly | Modiola caroliniana | Malvaceae (Mallow Family) | Broadleaf |
| Mallow, little | Malva parviflora | Malvaceae (Mallow Family) | Broadleaf |
| Medic, black | Medicago lupulina | Fabaceae (Pea or Bean Family) | Broadleaf |
| Medusahead | Taeniatherum caput-medusae | Poaceae (Grass Family) | Grass |
| Milkthistle, blessed | Silybum marianum | Asteraceae (Sunflower Family) | Broadleaf |
| Mistletoes | Phoradendron spp. | Viscaceae (Mistletoe Family) | Broadleaf |
| Morningglories | Ipomoea spp. | Convolvulaceae (Morningglory Family) | Broadleaf |
| Morningglory, Japanese | Ipomoea nil var. integriuscula also called Ipomoea hederacea var. integriuscula | Convolvulaceae (Morningglory Family) | Broadleaf |
| Morningglory, tall | Ipomoea purpurea | Convolvulaceae (Morningglory Family) | Broadleaf |
| Mullein, turkey | Croton setigerus | Euphorbiaceae (Spurge Family) | Broadleaf |
| Mustard, tumble | Sisymbrium altissimum | Brassicaceae (Mustard Family) | Broadleaf |
| Mustards | Brassica spp. | Brassicaceae (Mustard Family) | Broadleaf |
| Naiads | Najas spp. | Hydrocharitaceae (Waterweed Family) | Aquatic, Broadleaf |
| Nettle, burning | Urtica urens | Urticaceae (Nettle Family) | Broadleaf |
| Nightshade, black | Solanum nigrum | Solanaceae (Nightshade Family) | Broadleaf |
| Nightshade, hairy | Solanum physalifolium | Solanaceae (Nightshade Family) | Broadleaf |
| Nightshade, silverleaf | Solanum elaeagnifolium | Solanaceae (Nightshade Family) | Broadleaf |
| Nutsedge | Cyperus spp. | Cyperaceae (Sedge Family) | Sedge |
| Nutsedge, purple | Cyperus rotundus | Cyperaceae (Sedge Family) | Sedge |
| Nutsedge, yellow | Cyperus esculentus | Cyperaceae (Sedge Family) | Sedge |
| Oat, wild | Avena fatua | Poaceae (Grass Family) | Grass |
| Orchardgrass | Dactylis glomerata | Poaceae (Grass Family) | Grass |
| Oxtongue, bristly | Picris echioides | Asteraceae (Sunflower Family) | Broadleaf |
| Panicum, fall | Panicum dichotomiflorum | Poaceae (Grass Family) | Grass |
| Pearlwort, birdseye | Sagina procumbens | Caryophyllaceae (Pink Family) | Broadleaf |
| Pennywort | Hydrocotyle ssp. | Apiaceae (Carrot Family) | Broadleaf |
| Pepperweed, perennial | Lepidium latifolium | Brassicaceae (Mustard Family) | Broadleaf |
| Pigweed, redroot | Amaranthus retroflexus | Amaranthaceae (Pigweed Family) | Broadleaf |
| Pigweeds | Amaranthus spp. | Amaranthaceae (Pigweed Family) | Broadleaf |
| Pimpernel, scarlet | Anagallis arvensis | Primulaceae (Primrose Family) | Broadleaf |
| Pineappleweed | Chamomilla suaveolens | Asteraceae (Sunflower Family) | Broadleaf |
| Plantain, broadleaf | Plantago major | Plantaginaceae (Plantain Family) | Broadleaf |
| Plantain, buckhorn | Plantago lanceolata | Plantaginaceae (Plantain Family) | Broadleaf |
| Poison-oak, Pacific | Toxicodendron diversilobum | Anacardiaceae (Sumac Family) | Broadleaf |
| Pokeweed, common | Phytolacca americana | Phytolaccaceae (Pokeweed Family) | Broadleaf |
| Polypogon, rabbitfoot | Polypogon monspeliensis | Poaceae (Grass Family) | Grass |
| Puncturevine | Tribulus terrestris | Zygophyllaceae (Caltrop Family) | Broadleaf |
| Purslane, common | Portulaca oleracea | Portulacaceae (Purslane Family) | Broadleaf |
| Quackgrass | Elytrigia repens | Poaceae (Grass Family) | Grass |
| Radish, wild | Raphanus raphanistrum | Brassicaceae (Mustard Family) | Broadleaf |
| Redmaids | Calandrinia ciliata | Portulacaceae (Purslane Family) | Broadleaf |
| Redstems | Ammannia spp. | Lythraceae (Loosestrife Family) | Broadleaf |
| Rocket, London | Sisymbrium irio | Brassicaceae (Mustard Family) | Broadleaf |
| Ryegrass, Italian | Lolium multiflorum | Poaceae (Grass Family) | Grass |
| Ryegrasses | Lolium spp. | Poaceae (Grass Family) | Grass |
| Salsify, common | Tragopogon porrifolius | Asteraceae (Sunflower Family) | Broadleaf |
| Sandbur, longspine | Cenchrus longispinus | Poaceae (Grass Family) | Grass |
| Sedge, smallflower umbrella | Cyperus difformis | Cyperaceae (Sedge Family) | Aquatic, Sedge |
| Shattercane | Sorghum bicolor | Poaceae (Grass family) | Grass |
| Shepherd's-purse | Capsella bursa-pastoris | Brassicaceae (Mustard Family) | Broadleaf |
| Smartweed, pale | Polygonum lapathifolium | Polygonaceae (Buckwheat Family) | Broadleaf |
| Smutgrass | Sporobolus indicus | Poaceae (Grass Family) | Grass |
| Sorrel, red | Rumex acetosella | Polygonaceae (Buckwheat Family) | Broadleaf |
| Sowthistle, annual | Sonchus oleraceus | Asteraceae (Sunflower Family) | Broadleaf |
| Sowthistles | Sonchus spp. | Asteraceae (Sunflower Family) | Broadleaf |
| Speedwell, Persian | Veronica persica | Scrophulariaceae (Figwort Family) | Broadleaf |
| Speedwell, thymeleaf | Veronica serpyllifolia | Scrophulariaceae (Figwort Family) | Broadleaf |
| Spikerush, blunt | Eleocharis obtusa | Cyperaceae (Sedge Family) | Aquatic, Sedge |
| Sprangletop, bearded | Leptochloa fascicularis | Poaceae (Grass Family) | Aquatic, Grass |
| Spurge, creeping | Euphorbia serpens | Euphorbiaceae (Spurge Family) | Broadleaf |
| Spurge, petty | Euphorbia peplus | Euphorbiaceae (Spurge Family) | Broadleaf |
| Spurge, spotted | Euphorbia maculata | Euphorbiaceae (Spurge Family) | Broadleaf |
| Spurry, corn | Spergula arvensis | Caryophyllaceae (Pink Family) | Broadleaf |
| Starthistle, yellow | Centaurea solstitialis | Asteraceae (Sunflower Family) | Broadleaf |
| Stickleaf | Mentzelia dispersa | Loasaceae (Loasa Family) | Broadleaf |
| Sunflowers | Helianthus spp. | Asteraceae (Sunflower Family) | Broadleaf |
| Sweetclover, yellow | Melilotus officinalis | Fabaceae (Pea or Bean Family) | Broadleaf |
| Swinecress, greater | Lepidium coronopus | Brassicaceae (Mustard Family) | Broadleaf |
| Swinecress, lesser | Lepidium didymum | Brassicaceae (Mustard Family) | Broadleaf |
| Tarweeds | Hemizonia spp. | Asteraceae (Sunflower Family) | Broadleaf |
| Thistle, Canada | Cirsium arvense | Asteraceae (Sunflower Family) | Broadleaf |
| Thistle, Italian | Carduus pycnocephalus | Asteraceae (Sunflower Family) | Broadleaf |
| Thistle, Russian | Salsola spp. | Chenopodiaceae (Goosefoot Family) | Broadleaf |
| Thistle, slenderflower | Carduus tenuiflorus | Asteraceae (Sunflower Family) | Broadleaf |
| Thornapple, sacred | Datura wrightii | Solanaceae (Nightshade Family) | Broadleaf |
| Tobacco, Indian | Nicotiana quadrivalis | Solanaceae (Nightshade family) | Broadleaf |
| Velvetgrass, German | Holcus mollis | Poaceae (Grass Family) | Grass |
| Velvetleaf | Abutilon theophrasti | Malvaceae (Mallow Family) | Broadleaf |
| Vetch | Vicia spp. | Fabaceae (Pea or Bean) Family | Broadleaf |
| Waterhyssops | Bacopa spp. | Scrophulariaceae (Figwort Family) | Aquatic, Broadleaf |
| Waterplantain, common | Alisma plantago-aquatica | Alismataceae (Waterplantain Family) | Aquatic, Broadleaf |
| Wheat, volunteer | Triticum sp. | Poaceae (Grass Family) | Grass |
| Wild cucumber | Marah spp. | Cucurbitaceae (Squash Family) | Broadleaf |
| Willowherbs | Epilobium spp. | Onagraceae (Evening Primrose Family) | Broadleaf |
| Witchgrass | Panicum capillare | Poaceae (Grass Family) | Grass |
| Woodsorrel, creeping | Oxalis corniculata | Oxalidaceae (Oxalis Family) | Broadleaf |
| Yarrow, common | Achillea millefolium | Asteraceae (Sunflower Family) | Broadleaf |
