Invasive Species List

Species List Information

CISAC has compiled the list below of over 1,700 species known to be invasive in California or a potential threat for introduction to the state.

Download Species List (.csv) (to open in a Spreadsheet program)

This data download is provided to aid in the review of the draft invasive species list. We discourage other use of this data until it has been revised and finalized.

Scientific Name	Common Name	Type	Subtype	Extent	Risk of Introduction	Link
Closterovirus CTV	Citrus tisteza virus	disease	virus	limited	moderate
Closterovirus wylv or Prosopis fiebrigii ?	Wheat Yellow Leaf Virus	disease	virus
Cnemidophorus lemniscatus	Rainbow whiptail lizard	vertebrate	reptile
Cnemidophorus motaguae	Giant whiptail lizard	vertebrate	reptile
Cnemidophorus neomexicanus	New Mexico whiptail lizard	vertebrate	reptile
Cnemidophorus velox	Plateau striped whiptail	vertebrate	reptile
Cnestus mutilatus	Camphor shot borer	arthropod	beetle	not present	high	View Scorecard
Cocadviroid cccvd	Coconut Cadang-Cadang Viroid	disease	virus
Coccotorus scutellaris	plum gouger	arthropod	beetle	not present	moderate
Coccus viridis	Green scale	arthropod	scale, aphid	not present	high
Cochliobolus miyabeanus	Brown Spot of Rice	disease	fungus
Cochliomyia hominivorax	screwworm	arthropod	fly	not present	low	View Scorecard
Cocoa Swollen Shoot Virus	Cocoa Swollen Shoot Virus	disease	virus
Coelioxys spp.	cuckoo bees	arthropod	bee, wasp	not present	low
Colletotrichum coffeanum	Brown Blight	disease	fungus	not present	low
Columba livia	Feral pigeon	vertebrate	bird	widespread	high
Commelina benghalensis	Benghal dayflower	plant	herbaceous	limited	n/a (already in CA)
Comovirus of unknown genus	Andean Potato Mottle Virus	disease	virus
Comovirus rcmv	Red Clover Mottle Virus	disease	virus
Conicosia pugioniformis	narrowleaf iceplant	plant	herbaceous	limited	n/a (already in CA)
Coniothyrium spp.	canker in elm	disease	fungus
Conium maculatum	poison-hemlock	plant	herbaceous	widespread	n/a (already in CA)	View Scorecard
Conoderus rufangulus	Conoderus rufangulus	arthropod	beetle	not present	high
Conogethes punctiferalis	yellow peach moth	arthropod	butterfly, moth	not present	moderate
Conopomorpha cramerella	cocoa pod borer	arthropod	butterfly, moth	not present	low
Conopomorpha litchiella	lychee leaf miner	arthropod	butterfly, moth	not present	low
Conotrachelus aguacatae	small avocado seed weevil	arthropod	beetle	not present	high
Conotrachelus juglandis	butternut curculio	arthropod	beetle	not present	moderate
Conotrachelus nenuphar	plum curculio	arthropod	beetle	not present	high
Conotrachelus perseae	small seed weevil	arthropod	beetle	not present	high
Conotrachelus retentus	black walnut curculio	arthropod	beetle	not present	moderate	View Scorecard
Conotrachelus spp.	hidden snout weevils	arthropod	beetle	not present	moderate
Contarinia johnsoni	grape blossum midge	arthropod	fly	not present	low
Convolvulus arvensis	field bindweed	plant	herbaceous	widespread	n/a (already in CA)	View Scorecard
Conyza bonariensis	asthmaweed	plant	herbaceous	widespread	n/a (already in CA)
Copsychus malabaricus	White-rumped shama	vertebrate	bird
Copturus aguacatae	avocado stem weevil	arthropod	beetle	not present	high
Corbicula fluminalis	Corbicula fluminalis	invertebrate	aquatic mollusk, freshwater	limited	n/a (already in CA)
Corbicula fluminea	Asian clam	invertebrate	aquatic mollusk, freshwater	widespread	n/a (already in CA)	View Scorecard
Corcyra cephalonica	rice moth	arthropod	butterfly, moth	not present	moderate
Cordyceps spp.	Fungal Disease of Bees	disease	fungus
Cordyline australis	giant dracaena	plant	herbaceous	limited	n/a (already in CA)
Cornuvesica falcata	New Zealand wood rot	disease	fungus
Coronopus squamatus	swinecress	plant	herbaceous	limited	n/a (already in CA)
Cortaderia jubata	jubatagrass	plant	grass	widespread	n/a (already in CA)	View Scorecard
Cortaderia selloana	pampasgrass	plant	grass	widespread	n/a (already in CA)	View Scorecard
Cotoneaster franchetii	orange cotoneaster	plant	woody	limited	n/a (already in CA)
Cotoneaster lacteus	Parney's cotoneaster	plant	woody	limited	n/a (already in CA)
Cotoneaster pannosus	silverleaf cotoneaster	plant	woody	limited	n/a (already in CA)
Cotula coronopifolia	brassbuttons	plant	herbaceous	widespread	n/a (already in CA)
Coturnix coturnix	Common quail	vertebrate	bird
Crassula helmsii	Australian swamp stonecrop	plant	herbaceous	not present	low
Crataegus monogyna	hawthorn	plant	woody	limited	n/a (already in CA)
Cricetomys gambianus	Gambian giant pouched rat	vertebrate	mammal	not present	low
Crinipellis perniciosa	Witches Broom Fungus in cocoa	disease	fungus
Crinivirus CYSDV	Cucurbit Yellow Stunting Disorder Virus	disease	virus	limited	moderate
Crinivirus pyvv	Potato Yellow Vein Virus	disease	virus
Crinivirus spcsv	Sweetpotato Chlorotic Stunt Virus	disease	virus
Crisicoccus azaleae	azalea mealybug	arthropod	scale, aphid	not present	moderate
Crocosmia x crocosmiiflora	montbretia	plant	herbaceous	limited	n/a (already in CA)
Cronartium flaccidum	Scotch Pine Blister Rust	disease	fungus	not present	low
Cronartium ribicola	White pine blister rust	disease	fungus	limited	n/a (already in CA)
Crupina vulgaris	common crupina	plant	herbaceous	limited	n/a (already in CA)	View Scorecard
Cryphonectria parasitica	Chestnut blight	disease	fungus	not present	high
Cryptoblepharus poecilopleurus	Pacific snake-eyed skink	vertebrate	reptile
Cryptocotyle lingua	Black Spot parasite of fish	invertebrate	nematode
Cryptophlebia leucotreta	false codling moth	arthropod	butterfly, moth	not present	high
Cryptorhynchus mangiferae	mango seed weevil	arthropod	beetle	not present	low
Cryptosula pallasiana	Moss animal	invertebrate	other	limited	n/a (already in CA)
Ctenosaura pectinata	Mexican spinytail iguana	vertebrate	reptile	not present	moderate
Ctenosaura similis	Black spinytail iguana	vertebrate	reptile	not present	high
Cucumis melo var. duriam	dudaim melon	plant	herbaceous	limited	n/a (already in CA)
Cucumis myriocarpus	paddy melon	plant	herbaceous	limited	n/a (already in CA)
Cuon alpinus	Indian wild dog / Dhole	vertebrate	mammal
Curculio caryae	pecan weevil	arthropod	beetle	not present	moderate	View Scorecard
Curculio elephas	chestnut weevil	arthropod	beetle	not present	high
Curculio nucum	hazelnut weevil	arthropod	beetle	not present	high
Curtovirus CTVCP	Curly top virus	disease	virus	widespread	n/a (already in CA)
Cuscuta approximata	smoothseed alfalfa dodder	plant	herbaceous	limited	n/a (already in CA)
Cuscuta australis	Australian dodder	plant	herbaceous	not present	low
Cuscuta japonica	Japanese dodder	plant	herbaceous	limited	n/a (already in CA)	View Scorecard
Cuscuta monogyna	Eastern Dodder	plant	herbaceous	not present	low
Cuscuta reflexa	giant dodder	plant	herbaceous	not present	low
Cuscuta spp. (C. japonica, reflexa, australia, monogyna)	Dodder (non-native spp.)	plant	herbaceous	limited	n/a (already in CA)	View Scorecard
Cyclaneusma minus	Cyclaneusma Needle Cast	disease	fungus
Cydalima perspectalis	Box tree moth	arthropod	butterfly, moth	not present	moderate	View Scorecard
Cydia caryana	hickory shuckworm	arthropod	butterfly, moth	not present	moderate
Cydia funebrana	red plum maggot	arthropod	butterfly, moth	not present	high
Cydia splendana	chestnut moth	arthropod	butterfly, moth	not present	high
Cygnus olor	Mute swan	vertebrate	bird	widespread	n/a (already in CA)	View Scorecard
Cylas formicarius elegantulus	sweetpotato weevil	arthropod	beetle	not present	high	View Scorecard
Cylas spp.	exotic weevil	arthropod	beetle	not present	moderate
Cynara cardunculus	artichoke thistle	plant	herbaceous	widespread	n/a (already in CA)
Cynodon dactylon	bermudagrass	plant	grass	widespread	n/a (already in CA)
Cynoglossum officinale	houndstongue	plant	herbaceous	limited	n/a (already in CA)	View Scorecard
Cynomys ludovicianus	Prairie dog	vertebrate	mammal	not present	low
Cynosurus echinatus	hedgehog dogtailgrass	plant	grass	widespread	n/a (already in CA)
Cyperus difformis	variable flatsedge	plant	herbaceous	limited	n/a (already in CA)
Cyperus rotundus	purple nutsedge	plant	herbaceous	widespread	n/a (already in CA)	View Scorecard
Cyrtopodion scabrum	Rough-tailed gecko	vertebrate	reptile

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