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CDFA Plant Health

CA Noxious Weeds, California Noxious Weed List

Encycloweedia: Data Sheets

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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

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

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.

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.

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.

 

7/15/16

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