Encycloweedia

Encycloweedia: Data Sheets

California Noxious Weeds

Genus Species Common Name Family Scientific Name
Acacia paradoxa kangaroothorn Fabaceae Acacia paradoxa DC.
Acaena anserinifolia biddy-biddy Rosaceae Acaena anserinifolia J.R. Forst & G. Forst
Acaena novae-zelandiae biddy-biddy Rosaceae Acaena novae-zelandiae Kirk
Acaena pallida pale biddy-biddy Rosaceae Acaena pallida (Kirk) Allan
Achnatherum brachychaetum punagrass Poaceae See Stipa brachychaeta
Acroptilon repens Russian knapweed Asteraceae Acroptilon repens (L.) DC.
Aegilops cylindrica jointed goatgrass Poaceae Aegilops cylindrica Host
Aegilops geniculata ovate goatgrass Poaceae Aegilops geniculata Roth
Aegilops ovata ovate goatgrass Poaceae see A. geniculata
Aegilops triuncialis barb goatgrass Poaceae Aegilops triuncialis L.
Aeschynomene spp. jointvetch Fabaceae Aeschynomene
Ailanthus altissima tree-of-heaven Simaroubaceae Ailanthus altissima (Mill.) Swingle
Alhagi maurorum camelthorn Fabaceae Alhagi maurorum Medik
Allium paniculatum panicled onion Alliaceae Allium paniculatum L.
Allium vineale wild garlic Alliaceae Allium vineale L.
Alternanthera philoxeroides alligatorweed Amaranthaceae Alternanthera philoxeroides (Mart.) Griseb.
Alternanthera sessilis sessile joyweed Amaranthaceae Alternanthera sessilis (L.) R. Br. ex DC.
Ambrosia trifida giant ragweed Asteraceae Ambrosia trifida L.
Araujia sericifera bladderflower Apocynaceae Araujia sericifera Brot.
Arctotheca calendula capeweed Asteraceae Arctotheca calendula Hawksw. & Wiens
Arundo donax giant reed Poaceae Arundo donax L.
Asphodelus fistulosus onionweed Asphodelaceae Asphodelus fistulosus L.
Atriplex amnicola river saltbush Chenopodiaceae Atriplex amnicola P. G. Wilson
Berteroa incana hoary alyssum Brassicaceae Berteroa incana (L.) DC.
Brachypodium sylvaticum slender false-brome Poaceae Brachypodium sylvaticum (L.) P. Beauv
Cabomba caroliniana Carolina fanwort Cabombaceae Cabomba caroliniana A. Gray
Cardaria chalepensis lens-podded hoarycress Brassicaceae See Lepidium chalepense
Cardaria draba heart-podded hoarycress Brassicaceae See Lepidium draba
Cardaria pubescens globe-podded hoarycress Brassicaceae See Lepidium appelianum
Carduus acanthoides plumeless thistle Asteraceae Carduus acanthoides L.
Carduus nutans musk thistle Asteraceae Carduus nutans L.
Carduus pycnocephalus Italian thistle Asteraceae Carduus pycnocephalus L.
Carduus tenuiflorus slenderflowered thistle Asteraceae Carduus tenuiflorus Curtis
Carduus crispus curly plumeless thistle Asteraceae Carduus crispus L.
Carthamus baeticus smooth distaff thistle Asteraceae See C. creticus
Carthamus creticus smooth distaff thistle Asteraceae Carthamus creticus L
Carthamus lanatus woolly distaff thistle Asteraceae Carthamus lanatus L.
Carthamus leucocaulos whitestem distaff thistle Asteraceae Carthamus leucocaulos Sibth. & Sm.
Cenchrus echinatus southern sandbur Poaceae Cenchrus echinatus L.
Cenchrus incertus coast sandbur Poaceae Cenchrus incertus M. Curtis
Cenchrus longispinus mat sandbur Poaceae Cenchrus longispinus (Hackel) Fernald
Centaurea calcitrapa purple starthistle Asteraceae Centaurea calcitrapa L.
Centaurea diffusa diffuse knapweed Asteraceae Centaurea diffusa Lam.
Centaurea iberica Iberian starthistle Asteraceae Centaurea iberica Spreng.
Centaurea jacea s.l. meadow knapweed, black knapweed & brown knapweed Asteraceae Centaurea jacea
Centaurea maculosa spotted knapweed Asteraceae See C. stoebe ssp. micranthos
Centaurea melitensis Malta starthistle Asteraceae Centaurea melitensis L.
Centaurea squarrosa squarrose knapweed Asteraceae Centaurea squarrosa Willd., non Roth
Centaurea solstitialis yellow starthistle Asteraceae Centaurea solstitialis L.
Centaurea stoebe ssp. micranthos spotted knapweed Asteraceae Centaurea stoebe ssp. micranthos (Gugler) Hayak
Centaurea sulphurea Sicilian starthistle Asteraceae Centaurea sulphurea Willd.
Ceratopteris thalictroides watersprite Pteridaceae Ceratopteris thalictroides (L.) Brongn.
Chondrilla juncea skeletonweed Asteraceae Chondrilla juncea L.
Chorispora tenella purple mustard Brassicaceae Chorispora tenella (Pall.) DC.
Cirsium arvense Canada thistle Asteraceae Cirsium arvense (L.) Scop.
Cirsium japonicum Japanese thistle Asteraceae Cirsium japonicum DC.
Cirsium ochrocentrum yellowspine thistle Asteraceae Cirsium ochrocentrum A. Gray
Cirsium undulatum wavyleaf thistle Asteraceae Cirsium undulatum (Nutt.) Spreng.
Cirsium vulgare bullthistle Asteraceae Cirsium vulgare (Savi.) Ten.
Coincya monensis star-mustard Brassicaceae Coincya monesis (L.) Greuter & Burdet
Convolvulus arvensis field bindweed Convolvulaceae Convolvulus arvensis L.
Coronopus squamatus swinecress Brassicaceae See Lepidium coronopus
Cortaderia jubata jubata grass Poaceae… Cortaderia jubata (Lem.) Stapf
Crupina vulgaris bearded creeper Asteraceae Crupina vulgaris Cass.
Cucumis melo var. dudaim dudaim melon Cucurbitaceae Cucumis melo L. var. dudaim (L.) Naudin
Cucumis myriocarpus paddy melon Cucurbitaceae Cucumis myriocarpus Naudin
Cuscuta spp. dodder Convolvulaceae Cuscuta spp.
Cynara cardunculus artichoke thistle Asteraceae Cynara cardunculus L.
Cynara cardunculus ssp. flavescens artichoke thistle Asteraceae Cynara cardunculus ssp. flavescens Wiklund
Cyperus rotundus purple nutsedge Cyperaceae Cyperus rotundus L.
Cyperus esculentus yellow nutsedge Cyperaceae Cyperus esculentus L.
Cytisus scoparius Scotch broom Fabaceae Cytisus scoparius (L.) Link
Delairea odorata cape-ivy Asteraceae Delairea odorata Lem.
Diodia  virginiana Virginia buttonweed Rubiaceae Diodia virginiana L.
Dittrichia graveolens stinkweed Asteraceae Dittrichia graveolens (L.) Greuter
Drymaria cordata tropical chickweed Caryophyllaceae Drymaria cordata (L.) Willd. Ex Schuldt.
Egeria najas narrowleaf elodea Hydrocharitaceae Egeria najas Planch.
Elymus caput-medusae medusahead Poaceae see Taeniatherum caput-medusae
Elymus repens quackgrass Poaceae Elymus repens (L.) Gould
Elytrigia repens quackgrass Poaceae see Elymus repens
Euphorbia dendroides tree spurge Euphorbiaceae Euphorbia dendroides
Euphorbia esula leafy spurge Euphorbiaceae see E. virgata
Euphorbia graminea grassland spurge, but not cv. 'Diamond Frost' Euphorbiaceae Euphorbia graminea Jacq.
Euphorbia oblongata oblong spurge Euphorbiaceae Euphorbia oblongata Griseb.
Euphorbia serrata serrate spurge Euphorbiaceae Euphorbia serrata L.
Euphorbia terracina carnation spurge Euphorbiaceae Euphorbia terracina L.
Euphorbia virgata leafy spurge Euphorbiaceae Euphorbia virgata Waldst. & Kit.
Fallopia japonica Japanese knotweed Polygonaceae Fallopia japonica (Houtt.) Ronse Decr.
Fallopia sachalinensis giant knotweed Polygonaceae Fallopia sachalinensis (F. Schmidt) Ronse Decr.
Fallopia xbohemica Bohemian knotweed Polygonaceae Fallopia xbohemica (Chrtek & Chrtkova) J. P. Bailey
Fatoua  villosa hairy crabweed Moraceae Fatoua villosa (Thunb.) Nakai
Galega officinalis goatsrue Fabaceae Galega officinalis L.
Gaura drummondii Drummond's gaura Onagraceae see Oenothera xenogaura
Gaura sinuata wavy-leaved gaura Onagraceae see Oenothera sinuosa
Genista monspessulana French broom Fabaceae Genista monspessulana (L.) L.A.S. Johnson
Halimodendron halodendron Russian salttree Fabaceae Halimodendron halodendron (L.) Voss
Halogeton glomeratus halogeton Chenopodiaceae Halogeton glomeratus (M. Bieb.) C.A. Mey.
Helianthus ciliaris blueweed Asteraceae Helianthus ciliaris DC.
Heteropogon contortus tanglehead Poaceae Heteropogon contortus (L.) Roem. & Schult.
Hydrilla verticillata hydrilla Hydrocharitaceae Hydrilla verticillata (L.f.) Royle
Hydrocharis morsus-ranae frogbit Hydrocharitaceae Hydrocharis morsus-ranae L.
Hygrophila  polysperma Indian swampweed Acanthaceae Hygrophila polysperma (Roxb. ) T. Anders.
Hyoscyamus niger black henbane Solanaceae Hyoscyamus niger L.
Hypericum  canariense Canary Island St. Johnswort Hypericum Hypericum canariense L.
Hypericum perforatum Klamathweed Hypericaceae Hypericum perforatum L.
Isatis tinctoria dyer's woad Brassicaceae Isatis tinctoria L.
Lagarosiphon major oxygenweed Hydrocharitaceae Lagarosiphon major (Ridl.) Moss
Lepidium appelianum globe-podded hoarycress Brassicaceae Lepidium appelianum Al-Shehbaz
Lepidium chalepense lens-podded hoarycress Brassicaceae Lepidium chalepense L.
Lepidium coronopus swinecress Brassicaceae Lepidium coronopus L.
Lepidium draba heart-podded hoarycress Brassicaceae Lepidium draba L.
Lepidium latifolium perennial peppercress Brassicaceae Lepidium latifolium L.
Leptochloa chinensis Chinese sprangletop Poaceae Leptochloa chinensis Nees
Limnobium laevigatum South American spongeplant Hydrocharitaceae Limnobium laevigatum (Willd.) C. V. Morton
Limnobium spongia North American spongeplant Hydrocharitaceae Limnobium spongia (Bosc) Steud
Limnobium spongia ssp. laevigatum South American spongeplant Hydrocharitaceae See Limnobium laevigatum
Limnophila indica ambulia Scrophulariaceae Limnophila indica (L.) Druce
Limnophila  sessiliflora Asian marshweed Plantaginaceae Limnophila sessiliflora Blume
Linaria genistifolia ssp. dalmatica Dalmatian toadflax Scrophulariaceae Linaria genistifolia (L.) Mill. ssp. dalmatica (L.) Maire & Petitm.
Ludwigia decurrens winged water-primrose Onagraceae Ludwigia decurrens Walter
Ludwigia hexapetala water-primrose Onagraceae Ludwigia hexapetala (Hook. & Arn.) Zardini, H. Y. Gu & P. H. Raven
Ludwigia peruviana Peruvian water-primrose Onagraceae Ludwigia peruviana (L.) H. Hara
Lythrum salicaria purple loosestrife Lythraceae Lythrum salicaria L.
Mercurialis ambigua Spanish mercury Euphorbiaceae Mercurialis ambigua L. f.
Muhlenbergia schreberi nimblewill Poaceae Muhlenbergia schreberi S. Gmelin
Myosoton aquatica giant chickweed Caryophyllaceae Myosoton aquatica (L.) Moench
Nothoscordum inodorum false garlic Liliaceae Nothoscordum inodorum (Ait.) G. Nicholson
Nymphaea mexicana banana waterlily Nymphaeaceae Nymphaea mexicana Zucc.
Nothoscordum gracile false garlic Alliaceae Nothoscordum gracile (Aiton) Stearn
Nymphoides peltata yellow floating heart Menyanthaceae Nymphoides peltata (Gmel.) Kuntze
Oenothera sinuosa wavy-leaved gaura Onagraceae Oenothera sinuosa W. L. Wagner & Hoch
Oenothera xenogaura Drummond's gaura Onagraceae Oenothera xenogaura W. L. Wagner & Hoch
Ononis alopecuroides foxtail restharrow Fabaceae Ononis alopecuroides L.
Onopordum acanthium Scotch thistle Asteraceae Onopordum acanthium L.
Onopordum illyricum spp. Illyrian thistle Asteraceae Onopordum illyricum L.
Onopordum tauricum Taurian thistle Asteraceae Onopordum tauricum Willd.
Orobanche ramosa branched broomrape Orobanchaceae Orobanche ramosa L.
Oryza rufipogon perennial wild red rice Poaceae Oryza rufipogon Griff.
Panicum antidotale blue panicgrass Poaceae Panicum antidotale Retz.
Parthenium hysterophorus Santa Maria feverfew Asteraceae Parthemium hysterophorus L.
Peganum harmala harmel Nitrariaceae Peganum harmala L.
Pennisetum clandestinum Kikuyugrass Poaceae Pennisetum clandestinum Chiov.
Persicaria wallichii Himalayan knotweed Pollygonaceae Persicaria wallichii Greuter & Burdet
Physalis longifolia long-leaved groundcherry Solanaceae Physalis longifolia Nutt.
Physalis viscosa grape groundcherry Solanaceae Physalis viscosa L.
Polygonum cuspidatum Japanese knotweed Polygonaceae see Fallopia japonica
Polygonum polystachyum Himalayan knotweed Polygonaceae See Persicaria wallichii
Polygonum sachalinense giant knotweed Polygonaceae see Fallopia sachalanensis
Potentilla recta sulfur cinquefoil Rosaceae Potentilla recta L.
Prosopis strombulifera creeping mesquite Fabaceae Prosopis strombulifera (Lam.) Benth.
Retama monosperma bridal broom Fabaceae Retama monosperma (L.) Boiss.
Rhagadiolus stellatus star endive Asteraceae Rhagadiolus stellatus
Rorippa austriaca Austrian fieldcress Brassicaceae Rorippa austriaca (Crantz) Besser
Rorippa sylvestris creeping yellow fieldcress Brassicaceae Rorippa sylvestris (L.) Besser
Saccharum ravennae ravennagrass Poaceae Saccharum ravennae
Salsola collina spineless Russianthistle Chenopodiaceae Salsola collina Benth.
Salsola damascena wormleaf salsola Chenopodiaceae Salsola damascena Botsch.
Salsola paulsenii barbwire Russianthistle Chenopodiaceae Salsola paulsenii Litv.
Salsola tragus Russianthistle Chenopodiaceae Salsola tragus L.
Salsola vermiculata wormleaf salsola Chenopodiaceae see S. damascena
Salvia aethiopis Mediterranean sage Lamiaceae Salvia aethiopis L.
Salvia virgata meadow sage Lamiaceae Salvia virgata L.
Salvinia auriculata giant salvinia Salviniaceae Salvinia auriculata Aubl.
Scolymus hispanicus golden thistle Asteraceae Scolymus hispanicus L.
Senecio jacobaea tansy ragwort Asteraceae Senecio jacobaea L.
Senecio linearifolius fireweed groundsel Asteraceae Senecio linearifolius A. Rich.
Senecio mikanioides cape-ivy Asteraceae see Delairea odorata Lem.
Senecio squalidus Oxford ragwort Asteraceae Senecio squalidus L.
Sesbania punicea scarlet rattlebox Fabaceae Sesbania punicea (Cav.) Benth.
Setaria faberi giant foxtail Poaceae Setaria faberi R. Herrm.
Solanum cardiophyllum heartleaf nightshade Solanaceae Solanum cardiophyllum Lindl.
Solanum carolinense Carolina horsenettle Solanaceae Solanum carolinense L.
Solanum dimidiatum Torrey's nightshade Solanaceae Solanum dimidiatum Raf.
Solanum elaeagnifolium white horsenettle Solanaceae Solanum elaeagnifolium Cav.
Solanum lanceolatum lanceleaf nightshade Solanaceae Solanum lanceolatum Cav.
Solanum marginatum white-margined nightshade Solanaceae Solanum marginatum L. f.
Solanum torvum turkey berry Solanaceae  
Sonchus arvensis perennial sowthistle Asteraceae Sonchus arvensis L.
Sorghum halepense Johnsongrass Poaceae Sorghum halepense (L.) Pers.
Spartina alterniflora smooth cordgrass Poaceae Spartina alterniflora Loisel. & hybrids
Spartina anglica common cordgrass Poaceae Spartina anglica C. E. Hubb.
Spartina densiflora dense-flowered cordgrass Poaceae Spartina densiflora Brongn.
Spartina patens saltmeadow cordgrass Poaceae Spartina patens (Aiton) Muhl.
Spartium junceum Spanish broom Fabaceae Spartium junceum L.
Sphaerophysa salsula Austrian peaweed Fabaceae Sphaerophysa salsula (Pall.) DC.
Stipa brachychaeta punagrass Poaceae see Achnatherum brachychaetum
Striga asiatica witchweed Scrophulariaceae Striga asiatica (L.) Kuntze
Symphytum asperum rough comfrey Boraginaceae Symphytum asperum Lepechin
Taeniatherum caput-medusae medusahead Poaceae Taeniatherum caput-medusae (L.) Nevski
Tagetes minuta wild marigold Asteraceae Tagetes minuta L.
Tamarix chinensis chinese saltcedar Tamaricaceae Tamarix chinensis Lour.
Tamarix gallica French saltcedar Tamaricaceae Tamarix gallica L.
Tamarix parviflora small-flowered saltcedar Tamaricaceae Tamarix parviflora DC.
Tamarix ramosissima branched saltcedar Tamaricaceae Tamarix ramosissima Ledeb.
Tribolium obliterum Capegrass Poaceae Tribolium obliterum (Hemsl.) Renvoize
Tribulus terrestris puncturevine Zygophyllaceae Tribulus terrestris L.
Ulex europaeus gorse Fabaceae Ulex europaeus L.
Viscum album European mistletoe Santalaceae Viscum album L.
Volutaria canariensis Canary Island knapweed Asteraceae Volutaria canariensis Wagenitz
Zostera japonica Japanese eelgrass Zosteraceae Zostera japonica Asch. & Graebn.
Zygophyllum fabago Syrian beancaper Zygophyllaceae Zygophyllum fabago L.