Conservation - Catalina Plants & Animals
Introduced Flora of Catalina Island
The introduced flora of Catalina Island contains over 250 species, ranging from less impactful naturalized species to highly problematic invasive species. The management of introduced species and prevention of new introductions remains a continuing objective of the Conservancy’s plant program.
Ferns
Scaly tree fern, Sphaeropteris cooperi
Conifers
| Incense cedar | Calocedrus decurrens |
| Deodar cedar | Cedrus deodara |
| Monterey cypress | Hesperocyparis macrocarpa |
| Cuyamaca cypress | Hesperocyparis stephensonii |
| Knobcone pine | Pinus attenuata |
| Canary Island pine | Pinus canariensis |
| Coulter pine | Pinus coulteri |
| Aleppo pine | Pinus halepensis |
| Bishop pine | Pinus muricata |
| Italian stone pine | Pinus pinea |
| Monterey pine | Pinus radiata |
| Santa Rosa Island torrey pine | Pinus torreyana ssp. insularis |
Eudicots
| Green wattle | Acacia decurrens |
| Blackwood acacia | Acacia melanoxylon |
| Hollyhock | Alcea rosea |
| Tumbleweed | Amaranthus albus |
| Low amaranth | Amaranthus deflexus |
| Mayweed | Anthemis cotula |
| Baby sun-rose | Aptenia cordifolia |
| Marguerite | Argyranthemum frutescens |
| Tumbling orach | Atriplex rosea |
| Australian saltbush | Atriplex semibaccata |
| Sprawling saltbush | Atriplex suberecta |
| Five-hook bassia | Bassia hyssopifolia |
| Sea beet | Beta vulgaris ssp. maritima |
| Australian bluebell | Billardiera heterophylla |
| Black mustard | Brassica nigra |
| Yellow field mustard | Brassica rapa |
| Tara | Caesalpinia spinosa |
| Sea rocket | Cakile maritima |
| Shepherd’s purse | Capsella bursa-pastoris |
| Bitter-cress | Cardamine oligosperma |
| Italian thistle | Carduus pycnocephalus ssp. pycnocephalus |
| Sea fig | Carpobrotus chilensis |
| Freeway iceplant | Carpobrotus edulis |
| Dusty miller | Centaurea cineraria |
| Cornflower | Centaurea cyanus |
| Tocalote | Centaurea melitensis |
| Yellow star-thistle | Centaurea solstitialis |
| Red valerian | Centranthus ruber |
| Sticky mouse-ear chickweed | Cerastium glomeratum |
| Nettle-leaf goosefoot | Chenopodium murale |
| Prairie thistle | Cirsium canescens |
| Yellowspine thistle | Cirsium ochrocentrum var. ochrocentrum |
| Cirsium undulatum | |
| Bull thistle | Cirsium vulgare |
| Poison hemlock | Conium maculatum |
| Bindweed | Convolvulus arvensis |
| Mediterranean crownvetch | Coronilla valentina ssp. glauca |
| Silverleaf cotoneaster | Cotoneaster pannosus |
| Australian brass-buttons | Cotula australis |
| Brass-buttons | Cotula coronopifolia |
| Bristly hawksbeard | Crepis setosa |
| Artichoke thistle | Cynara cardunculus ssp. flavescens |
| German ivy | Delairea odorata |
| Mexican tea | Dysphania ambrosioides |
| Australian goosefoot | Dysphania pumilio |
| Flax-leaved fleabane | Erigeron bonariensis |
| Big beak filaree, Broad-leaf filaree | Erodium botrys |
| Storkbill | Erodium brachycarpum |
| Redstem filaree | Erodium cicutarium |
| Greenstem filaree | Erodium moschatum |
| Wallflower | Erysimum cheiri |
| River red gum | Eucalyptus camaldulensis |
| Blue gum | Eucalyptus globulus |
| Silver dollar gum | Eucalyptus polyanthemos |
| Caper spurge | Euphorbia lathyris |
| Petty spurge | Euphorbia peplus |
| Edible fig | Ficus carica |
| Fennel | Foeniculum vulgare |
| Wall bedstraw | Galium parisiense |
| Dyer’s greenwold | Genista linifolia |
| French broom | Genista monspessulana |
| Small-flowered geranium | Geranium pusillum |
| Garland, Crown daisy | Glebionis coronaria |
| Crete weed | Hedypnois cretica |
| Common sunflower | Helianthus annuus |
| Bristly ox-tongue | Helminthotheca echioides |
| Rupturewort | Herniaria hirsuta var. cinerea |
| Shortpod mustard | Hirschfeldia incana |
| Smooth cat’s-ear | Hypochaeris glabra |
| Rough cat’s-ear | Hypochaeris radicata |
| Iochroma grandiflora | |
| Mile-a-minute vine | Ipomoea cairica |
| Ivyleaf morning glory | Ipomoea hederacea |
| Fluellin | Kickxia elatine |
| Willow lettuce | Lactuca saligna |
| Prickly lettuce | Lactuca serriola |
| Tangier pea | Lathyrus tingitanus |
| Lesser swine cress | Lepidium didymum |
| Hoary cress | Lepidium draba |
| Lepidium strictum | |
| Bird’s peppergrass | Lepidium virginicum ssp. menziesii |
| Variable linanthus | Leptosiphon parviflorus |
| Marsh-rosemary | Limonium perezii |
| Statice | Limonium sinuatum |
| Violet toadflax | Linaria bipartita |
| Lithrea molleoides | |
| Sweet alyssum | Lobularia maritima |
| Daggerleaf cottonrose | Logfia gallica |
| Bird’s-foot trefoil | Lotus corniculatus |
| Scarlet pimpernel | Lysimachia arvensis |
| Loosestrife | Lythrum hyssopifolia |
| Bull mallow | Malva nicaeensis |
| Cheeseweed | Malva parviflora |
| Horehound | Marrubium vulgare |
| Pineapple weed | Matricaria discoidea |
| California burclover | Medicago polymorpha |
| Alfalfa | Medicago sativa |
| White sweetclover | Melilotus albus |
| Sourclover | Melilotus indicus |
| Watermint | Mentha aquatica |
| Spearmint | Mentha spicata |
| Peppermint | Mentha x piperita |
| Crystalline iceplant | Mesembryanthemum crystallinum |
| Slender-leaved iceplant | Mesembryanthemum nodiflorum |
| New Zealand Christmas tree | Metrosideros excelsa |
| Water cress | Nasturtium officinale |
| Catnip | Nepeta cataria |
| Tree tobacco | Nicotiana glauca |
| Wavy-leaf gaura | Oenothera sinuosa |
| Mission prickly-pear | Opuntia ficus-indica |
| Windowbox wood-sorrel | Oxalis articulata ssp. rubra |
| Weed oxalis, Creeping wood sorrel | Oxalis corniculata |
| Bermuda buttercup | Oxalis pes-caprae |
| Opium poppy | Papaver somniferum |
| Fish geranium | Pelargonium ×hortorum |
| Ivy geranium | Pelargonium peltatum |
| Mock orange | Pittosporum undulatum |
| Rattail plantain | Plantago coronopus |
| English plantain | Plantago lanceolata |
| Common plantain | Plantago major |
| London plane tree | Platanus xhispanica |
| Four-leaved allseed | Polycarpon tetraphyllum var. tetraphyllum |
| Persian knotweed | Polygonum argyrocoleon |
| Common knotweed | Polygonum aviculare ssp. depressum |
| Purslane | Portulaca oleracea |
| Garden burnet | Poterium sanguisorba var. polygamum |
| Peach | Prunus persica |
| Weedy cudweed | Pseudognaphalium luteoalbum |
| False-fleabane | Pulicaria paludosa |
| Pomegranate | Punica granatum |
| Pyracantha sp. | |
| Jointed charlock | Raphanus raphanistrum |
| Radish | Raphanus sativus |
| Garden mignonette | Reseda odorata |
| Castor bean | Ricinus communis |
| Black locust | Robinia pseudoacacia |
| Himalayan blackberry | Rubus armeniacus |
| Green dock | Rumex conglomeratus |
| Curly dock | Rumex crispus |
| Rue | Ruta chalepensis |
| Russian thistle, Tumbleweed | Salsola australis |
| Peruvian pepper tree | Schinus molle |
| Brazilian pepper tree | Schinus terebinthifolius |
| Common groundsel | Senecio vulgaris |
| African senna | Senna didymobotrya |
| Windmill pink | Silene gallica |
| Milk thistle | Silybum marianum |
| Charlock | Sinapis arvensis |
| Tumble mustard | Sisymbrium altissimum |
| London rocket | Sisymbrium irio |
| Hedge mustard | Sisymbrium officinale |
| Oriental mustard | Sisymbrium orientale |
| White horse-nettle | Solanum elaeagnifolium |
| Buffalo berry | Solanum rostratum |
| Spur weed | Soliva sessilis |
| Prickly sow thistle | Sonchus asper ssp. asper |
| Common sow thistle | Sonchus oleraceus |
| Slender sow thistle | Sonchus tenerrimus |
| Spanish broom | Spartium junceum |
| Stickwort | Spergula arvensis |
| Boccone’s sand-spurrey | Spergularia bocconi |
| Hairy sand-spurrey | Spergularia villosa |
| Common chickweed | Stellaria media |
| Smallflower tamarisk | Tamarix parviflora |
| Saltcedar | Tamarix ramosissima |
| Common dandelion | Taraxacum officinale |
| New Zealand spinach | Tetragonia tetragonioides |
| Hopi tea | Thelesperma megapotamicum |
| Torilis arvensis | |
| knotted hedge-parsley | Torilis nodosa |
| Salsify, oyster plant | Tragopogon porrifolius |
| Puncture vine | Tribulus terrestris |
| Rose clover | Trifolium hirtum |
| White clover | Trifolium repens |
| Garden nasturtium | Tropaeolum |
| Dwarf nettle | Urtica urens |
| Purple vetch | Vicia benghalensis |
| Hairy vetch | Vicia villosa ssp. varia |
| Greater periwinkle | Vinca major |
Monocots
| American century plant | Agave americana |
| Creeping bent | Agrostis stolonifera |
| Silver hair grass | Aira caryophyllea |
| Giant reed | Arundo donax |
| Asparagus | Asparagus asparagoides |
| Garden asparagus | Asparagus officinalis ssp. officinalis |
| Slender wild oat | Avena barbata |
| Wild oat | Avena fatua |
| Cultivated oat | Avena sativa |
| False brome | Brachypodium distachyon |
| Annual quaking grass | Briza minor |
| Chilean chess | Bromus berteroanus |
| Rescue grass | Bromus catharticus |
| Ripgut brome | Bromus diandrus |
| Soft chess | Bromus hordeaceus |
| Red brome | Bromus madritensis ssp. rubens |
| Poverty brome | Bromus sterilis |
| Columbia brome | Bromus vulgaris |
| Pampas grass | Cortaderia selloana |
| Modest prickle grass | Crypsis vaginiflora |
| Bermuda grass | Cynodon dactylon |
| Orchard grass | Dactylis glomerata |
| Durban crowfoot | Dactyloctenium aegyptium |
| Desmazeria rigida | |
| Hairy crab grass | Digitaria sanguinalis |
| Barnyard grass | Echinochloa crus-galli |
| Perennial veldt grass | Ehrharta calycina |
| Panic veldt grass | Ehrharta erecta |
| Tall fescue | Festuca arundinacea |
| Brome fescue | Festuca bromoides |
| Rattail sixweeks grass | Vulpia myuros |
| English ryegrass, Perennial ryegrass | Festuca perennis |
| Darnel | Festuca temulenta |
| Nit grass | Gastridium phleoides |
| Barb grass | Hainardia cylindrica |
| Mediterranean barley | Hordeum marinum ssp. gussoneanum |
| Smooth barley | Hordeum murinum ssp. glaucum |
| Hare barley | Hordeum murinum ssp. leporinum |
| Wall barley | Hordeum murinum ssp. murinum |
| Common or cultivated barley (not in Jepson) | Hordeum vulgare |
| Goldentop | Lamarckia aurea |
| Panicum capillare | |
| Sickle grass | Parapholis incurva |
| Dallis grass | Paspalum dilatatum |
| Kikuyu grass | Pennisetum clandestinum |
| Harding grass | Phalaris aquatica |
| Canary grass | Phalaris canariensis |
| Carolina canary grass | Phalaris caroliniana |
| Little-seeded canary grass | Phalaris minor |
| Hood canary grass | Phalaris paradoxa |
| Canary Island palm | Phoenix canariensis |
| Annual blue grass | Poa annua |
| Fowl blue grass | Poa palustris |
| Ditch beard grass | Polypogon interruptus |
| Rabbitfoot grass | Polypogon monspeliensis |
| Water beard grass | Polypogon viridis |
| Crisp-leaved pondweed | Potamogeton crispus |
| Arabian grass | Schismus arabicus |
| Mediterranean grass | Schismus barbatus |
| Rye | Secale cereale |
| Sorghum | Sorghum bicolor |
| Johnson grass | Sorghum halepense |
| Smilo grass | Stipa miliacea var. miliacea |
| Mexican feathergrass | Stipa tenuissima |
| Wheat | Triticum aestivum |
| California fan palm | Washingtonia filifera |
| Mexican fan palm | Washingtonia robusta |