Category Definition A
Noxious weed of known economic importance which occurs in small enough infestations to make eradication/containment possible; or is not known to occur, but is present in neighboring states B
Noxious weed of economic importance which is regionally abundant, but may have limited distribution in some counties; biological control is the preferred approach
Category Scientific name Family Common name B Abutilon theophrasti
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Malvaceae Velvetleaf, Velvetleaf Indian Mallow, abutilon-hemp, butterprint, China-jute, Indian-mallow, Tientsin-jute, velvetweed, chinesische Jute, chinesischer Hanf, Samtpappel, ichibi B Acaena novae-zelandieae
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Zygophyllaceae Biddy Biddy, Bidibid, bidgee-widgee, piri-piri-bur, New Zealand-bur A Acaena pallida (A. anserinifolia) Rosaceae Biddy Biddy, pale biddy-biddy B
CropAcroptilon repens
syn Centaurea picris, Centaurea repens
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-0400Asteraceae Russian Knapweed, blueweed, creeping knapweed, hardheads, Federblume B Aegilops cylindrica
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Poaceae Jointed Goatgrass
GRIN Database
CalFlora DatabaseA Aegilops ovata
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Poaceae Ovate Goatgrass
CalFlora DatabaseA Aegilops tauschii
syn Aegilops squarrosa
syn Patropyrum tauschii
syn Triticum tauschiiPoaceae Tausch's goatgrass A Aegilops triuncialis
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Poaceae Barb Goatgrass
CalFlora DatabaseA Aegilops ventricosa Poaceae Bulbed Goatgrass, Barbed Goatgrass Federal Aeginetia indica L.
Noxious in AL, CA, FL, MA, MN, NC, OR, SC, VTOrobanchaceae ye gu, nanban-giseru, omoigusa Federal Ageratina adenophora
syn Eupatorium adenophorum, Eupatorium glandulosum
Noxious in AL, CA, FL, HI, MA, MN, NC, OR, SC, VTAsteraceae crofton weed, Mexican devil, Thoroughwort, catweed, hemp-agrimony, Maui pamakani, Mexican-devil, sticky-agrimony B Agropyron repens
syn Elytrigia repens
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Poaceae quack grass, dog grass, couch grass, quitch grass, quake grass, scutch grass, twitch grass, witch grass, wheatgrass, creeping wheatgrass, devil's grass, durfa grass, durfee grass, Dutch grass, Fin's grass, chandler's grass.
Weed controlFederal Alectra fluminensis
syn Alectra aspera, Glossostylis aspera, Melasma melampyroides, Pedicularis melampyroides
Noxious in AL, CA, FL, MA, MN, NC, OR, SC, VTScrophulariaceae
also placed in Orobanchaceaeyerba de hierro, A Alhagi maurorum, Alhagi pseudalhagi
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Fabaceae Camelthorn, Cames Thorn, Camel-thorn, Caspian Manna, Persian Manna (Camels like to eat it in its native range of Iran and west to Cyprus)
CalFlora DatabaseFederal Alternanthera sessilis
syn Achyranthes sessilis L., Alternanthera glabra, Gomphrena sessilis
Noxious in AL, AR, CA, FL, MA, MN, NC, OR, PR, SC, VTAmaranthaceae sessile joyweed, lian zi cao, periquito-sessil Crop Amaranthus blitoides
syn Amaranthus graecizansAmaranthaceae Prostrate pigweed, Mat amaranth, Nerfamarant, matweed, matweed amaranth, prostrate amaranth, bei mei xian Crop
CropAmaranthus retroflexus Amaranthaceae Redroot pigweed, Pigweed, Common Amaranth, Papegaaienkruid, Redroot Amaranth, Rough Pigweed, wild-beet amaranth, fan zhi xian, amarante réfléchie, Ackerfuchsschwanz, amaranto común B Ambrosia artemisiifolia
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Common Ragweed, Annual ragweed, low ragweed
CalFlora DatabaseA Ambrosia tomentosa
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Skeletonleaf Bursage Crop Anagallis arvensis Primulaceae Scarlet pimpernel, red chickweed, Poor man's weather glass, common pimpernel, bird's-eye, shepherd's-weatherglass, buglosse des champs. mouron des champs. Ackergauchheil, murajes B Anchusa officinalis
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Boraginaceae Common bugloss, Common Anchusa, Alkanet Crop
CropAnthemis cotula Asteraceae Mayweed chamomile, Dog-fennel, mayweed, stinking chamomile, camomille des chiens, camomille puante, stinkende Hundskamille, manzanilla hedionda, Dog Mayweed Crop Arabidopsis thaliana
syn Arabis thaliana L., Sisymbrium thalianumBrassicaceae Mouse-ear cress, thale-cress Federal Asphodelus fistulosus
Syn Asphodelus tenuifolius
Noxious in AL, CA, FL, MA, MN, NC, NM, OR, SC, VTLiliaceae onionweed, pink asphodel, Asphodel, Gamonita, Onion-leaved Asphodel, Shiryas Federal Avena sterilis
syn A. ludoviciana, Avena sterilis subsp. ludoviciana
Noxious in AL, CA, FL, MA, MN, NC, OR, SC, VTPoaceae animated oat, sterile oat, wild oat, wild red oat, winter wild oat, avoine animée, avoine stérile, Winterhafer, aveão, avena caballuna, avena estéril, avena loca, Aegilops, Wilde Haver Federal Azolla pinnata
Noxious in AL, CA, MA, NC, OR, SC, VTAzollaceae feathered mosquitofern, mosquito fern, water velvet, ferny azolla B Brachypodium sylvaticum
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Poaceae False brome, slender false brome Crop Sinapis arvensis L.
syn Brassica kaber, Brassica kaber var. pinnatifida, Brassica kaber var. schkuhriana, Brassica arvensis, Brassica sinapis, Brassica sinapistrum, Moricandia arvensis; Sinapis arvensis subsp. arvensis; Sinapis arvensis var. orientalis; Sinapis arvensis var. schkuhriana; Sinapis orientalis; Sinapis schkuhrianaBrassicaceae Wild mustard, charlock mustard, canola, rapeseed, kaber mustard, Charlock, Cherlock, Corn-mustard, Field Mustard, Garlock, Herik, Mostaza Criollo, Moutarde, Moutarde Blanche, Mustard, Purple Mistress, Purple-mistress, Runch, Yabani Hardal Crop
CropBrassica rapa
syn Brassica septiceps, Brassica rapa septiceps, Brassica rapa rapifera, Brassica campestris rapifera, Brassica campestris rapaBrassicaceae Birdsrape mustard, Turnip, Caulanthus sulfureus, colbaga, tyfon Crop Calandrinia ciliata
syn Calandrinia ciliata var. menziesii, Calandrinia caulescensPortulacaceae Redmaids, Fringed Redmaids, desert rockpurslane Crop Calystegia sepium
syn Convolvulus sepium L.Convolvulaceae Hedge bindweed, hedge false bindweed, wild morning glory, bearbind, devil's guts, hedgebell, old man's night cap, bindweed, greater bindweed, grand liseron, liseron des haies, Zaunwinde, trepadeira, corregula mayor, Cit Sarmasigi, Correhuela Mayor, Haagwinde, Hedge Convolvulus, Hooded Bindweed, Hsu Chin Keu, Hsuan Hua, Tun Ch'Ang Ts'Ao Crop
CropCapsella bursa-pastoris
syn Thlaspi bursa-pastorisBrassicaceae Shepherd's-purse, bourse à pasteur, capselle à pasteur, Hirtentäschel, naeng-i, bolsa-de-pastor, erva-do-bom-pastor, zurrón de pastor Crop Cardamine hirsuta Brassicaceae or Cruciferae bittercress, pepperweed, shotweed, snapweed, hairy bittercress, Kleine Veldkers Crop Cardamine oligosperma
syn Cardamine umbellataBrassicaceae or Cruciferae Spring cress, Bittercress, Idaho Bittercress, Little Western Bittercress, Umbel Bittercress B Cardaria - all of them
syn Hymenophysa spp., Lepidium spp.
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Brassicaceae longstalk whitetop, hairy whitetop, Hoary Cress, Heart-podded Hoary Cress, Heart-podded Whitetop, Whitetop, Lens-podded Hoary Cress A Carduus acanthoides syn Carduus alanthoides
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Plumeless Thistle**, Spiny Plumeless Thistle
GRIN DatabaseB Carduus nutans
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Musk Thistle, nodding plumeless thistle, nodding thistle, chardon penché B Carduus phycnocephalus
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Italian Thistle, shore thistle, slender thistle B Carduus tenuiflorus
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Slenderflower Thistle, Italian thistle, Slender-flowered Thistle, winged plumeless thistle, winged thistle, shore thistle, slender thistle A Carthamus baeticus
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Smooth distaff thistle A Carthamus lanatus
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Woolly Distaff Thistle, Distaff thistle, distaff thistle, Smooth distaff thistle A Carthamus lanatus ssp. baeticus Asteraceae Smooth Distaff Thistle A Carthamus leucocaulos Asteraceae Whitestem Distaff Thistle, glaucous star thistle, yellow distaff thistle A
FederalCarthamus oxyacantha
syn Carthamus flavescens
Noxious in AL, CA, FL, MA, MN, NC, OR, SC, VTAsteraceae Sharp eyed thistle, Wild safflower, jeweled distaff thistle, Sharp spined thistle A Caulerpa taxifolia Caulerpaceae caulerpa seaweed, Caulerpa, Mediterranean clone; Killer algae A Centaurea calcitrapa
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Purple Star-thistle**, Red Star-thistle, star thistle, centaurée chausse-trape, Stern-Flockenblume Crop Centaurea cyanus Asteraceae Cornflower, A'Nber, Aciano, Bachelor button, Bleuet, Bluebottle, Bluebow, Blue Cap, Cornflour, Garden Cornflower, Hurtsickle, Korenbloem, Mawi Pighember Chichegi, Peygamber Cicegi, Sentoria B
CropCentaurea diffusa
Syn Acrolophus diffusus (LAM.), Acosta diffusa
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Diffuse Knapweed, white knapweed, Sparrige Flockenblume, spreading knapweed, tumble knapweed
More Info
More InfoA Centaurea iberica
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Iberian Starthistle**, Iberian knapweed
GRIN DatabaseA
CropCentaurea jacea L.
Syn Centaurea pratensisAsteraceae Brown knapweed, jacée, Wiesen-Flockenblume
Invasive.org knapweed chartA Centaurea macrocephala Asteraceae Bighead Knapweed, Yellow Bachelor's Button, Globe Centaurea, lemon fluff, great golden knapweed B
CropCentaurea maculosa
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Spotted Knapweed
DANGER!!
How to Control ItB Centaurea ×moncktonii
syn Centaurea pratensis
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae meadow knapweed
Invasive.org knapweed chartB Centaurea nigrescens
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Vochin Knapweed, Tyrol Knapweed, Short-Fringed Knapweed, Wocheiner knapweed, schwärzliche Flockenblume B Centaurea pratensis
Syn Centaurea biebersteinii, Centaurea maculosa, Centaurea maculosa subsp. micranthos, Centaurea ×moncktonii
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Meadow Knapweed, Spotted knapweed, Kleinköpfige Rispen-Flockenblume B
CropCentaurea solstitialis
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Yellow Star-thistle, St. Barnaby's thistle, cotton tip thistle, Barnaby's Thistle, yellow star thistle, yellow-starthistle, geeldissel, golden star thistle, St. Barnaby's thistle, yellow centaury, yellow cockspur, Sonnwend-Flockenblume B Centaurea stoebe L. subsp. micranthos
syn Centaurea rhenana, Centaurea biebersteinii, Centaurea maculosa subsp. micranthosAsteraceae spotted knapweed, Kleinköpfige Rispen-Flockenblume
DANGER!!
How to Control ItA Centaurea trichocephala Asteraceae Feather-headed Knapweed A
CropCentaurea virgata
syn Centauria virgata
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Squarrose Knapweed Crop Cerastium arvense Carophyllaceae Field chickweed, chickweed, field mouse-ear, meadow chickweed, starry grasswort, Field mouse-ear chickweed, Large-flowered Meadow Chickweed, Starry Cerastium Crop
CropCerastium fontanum Baumg. subsp. vulgare
syn Cerastium vulgatum, C. holosteoides, Cerastium fontanum subsp. triviale, Cerastium vulgareCarophyllaceae Mouse ear chickweed Crop
CropChenopodium album
syn Chenopodium reticulatumChenopodiaceae Lambsquarter, Fat hen, Allgood, Baconweed, Cenizo, Chenopode Blanc, Common Lambsquarters, Dirtweed, Dirty Dick, Farinacco, Fisa Al Kilab, Frost Blite, Gemeiner Gansefuss, Hui Hsien, Hui T'Iao, Kulf , Mel Ganzevoet, Melganzenvoet, Midden Myles, Missouri Goosefoot, Mutton Tops, Pigweed, Vastuk, White Goosefoot, li, ansérine blanche, weißer Gänsefuß, anserina-branca, armuelle, cenizo blanco Federal Chrysopogon aciculatus
syn Andropogon acicularis, Andropogon aciculatus, Rhaphis acicularis, Rhaphis aciculata
Noxious in AL, CA, FL, MA, MN, NC, OR, SC, VTPoaceae pilipiliula, Mackie's pest, seed grass, golden beardgrass, inifuk, matapekepeke, amorseco, lesser spear grass, love grass B
CropChondrilla juncea
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Rush Skeletonweed, Gum-succory, Skeleton weed, hogbite Crop Chorisporia tenella Brassicaceae Blue mustard, Tenella, Purple mustard Crop Cichorium intybus L.
syn Cichorium intybus var. foliosum, Cichorium intybus var. sativumAsteraceae Chicory, Achicoria, Achicoria Amarga, Almeirao, Barbe De Capucin, Blaue Wegwarte, Blue-sailors, Cichorei, Cicoria Radicchio, Cikoria, Cikorie, Common Chicory, Endive, Hendibeh , Hindiba, Kasni, Kiku-Niga-Na, Succory, Wild Chicory, Wild Succory, Wilde Cichorei, Zikorifa, Belgium endive, chicory, coffee chicory, French endive, witloof, chicorée, chicorée de Bruxelles, endive witloof, Chicorée, Kaffeezichorie, Salatzichorie, Wegwarte, Wurzelzichorie, radicchio, achicoria de Bruselas, achicoria de café, achicoria de raíz Crop Cicuta douglasii
PoisonousUmbelliferae Western waterhemlock, Water hemlock B
Crop
CropCirsium arvense
Or. Dept of Ag Division 52, Pest & Disease Control, 603-052-1200Asteraceae Canada Thistle
CalFlora Database