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April 2018
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PLANT SPECIES
 
Catalina Island is home to more than 400 native plants, and 200 non-native plants. This is a guide to the most commonly seen plant species. This is not a list of all plant species on the island.

While many of Catalina Island's native plants are also found on mainland California, there are a number of unique species that either occur only on Catalina Island (seven endemic species) or occur on two or more of Southern and Baja California's offshore islands but not on the mainland (twenty six Island endemic species).

Thanks to past and present staff for the photos used. 

Acknowledgements and Disclaimer 
Sort by: Common Name Scientific Name Color
A
Red sand-verbena   Abronia maritima   Pink
Yarrow   Achillea millefolium   White
Silver clover   Acmispon argophyllus var. argenteus   Yellow/orange
Island broom   Acmispon dendroideus var. dendroideus   Yellow
Large-flowered lotus   Acmispon grandiflorus var. grandiflorus   Yellow/orange
Coastal lotus   Acmispon maritimus var. maritimus   Yellow
Perezia   Acourtia microcephala   Purple
Chamise   Adenostoma fasciculatum   White
California maidenhair   Adiantum jordanii   Fern
Dune bent grass   Agrostis pallens   No visible color, very small flower
Wild onion   Allium praecox   Purple/white
Beach bur-sage   Ambrosia chamissonis   No visible color, very small flower
Common fiddleneck   Amsinckia intermedia   Yellow
Mayweed   Anthemis cotula   White
Nuttall???_??s snapdragon   Antirrhinum nuttallianum subsp. subsessile   Purple
Aphanisma   Aphanisma blitoides   Red
Wild celery   Apiastrum angustifolium   White
Santa Catalina Island manzanita   Arctostaphylos catalinae   White
California sagebrush   Artemisia californica   No visible color, very small flower
Mugwort   Artemisia douglasiana   No visible color, very small flower
Pickleweed   Arthrocnemum subterminale   No visible color, very small flower
Narrow-leaf milkweed   Asclepias fascicularis   Pink/white
Bridal creeper   Asparagus asparagoides   White
Rattleweed   Astragalus trichopodus var. lonchus   Yellow
Coulter???_??s saltbush   Atriplex coulteri   No visible color, very small flower
Beach saltbush   Atriplex leucophylla   No visible color, very small flower
Australian saltbush   Atriplex semibaccata   No visible color, very small flower
Slender wild oat   Avena barbata   No visible color, very small flower
B
Coyote brush   Baccharis pilularis subsp. consanguinea   White
Mule fat   Baccharis salicifolia subsp. salicifolia   White
Velvet cactus   Bergerocactus emoryi   Yellow
Sea beet   Beta vulgaris subsp. maritima   No visible color, very small flower
Common goldenstar   Bloomeria crocea   Yellow
Saltmarsh bulrush   Bolboschoenus maritimus subsp. paludosus   No visible color, very small flower
Bowlesia   Bowlesia incana   White
Black mustard   Brassica nigra   Yellow
California brickellbush   Brickellia californica   Yellow
Chaparral cluster-lily   Brodiaea jolonensis   Purple
Ripgut brome   Bromus diandrus   No visible color, very small flower
Red brome   Bromus madritensis subsp. rubens   No visible color, very small flower
C
Sea rocket   Cakile maritima   White/purple
Red maids   Calandrinia menziesii   Pink
Catalina mariposa lily   Calochortus catalinae   White
Morning-glory   Calystegia macrostegia subsp. macrostegia   White
Shepherd???_??s purse   Capsella bursa-pastoris   No visible color, very small flower
Milk maids   Cardamine californica   White
Trigonous sedge   Carex triquetra   No visible color, very small flower
Sea fig   Carpobrotus chilensis   Pink
Indian paintbrush   Castilleja affinis subsp. affinis   Red
Purple owl's-clover   Castilleja exserta   Purple
Woolly paintbrush   Castilleja foliolosa   Red
Feltleaf ceanothus   Ceanothus arboreus   White
Island ceanothus   Ceanothus megacarpus var. insularis   White
Big-pod ceanothus   Ceanothus megacarpus var. megacarpus   White
Tocalote   Centaurea melitensis   Yellow
Red valerian   Centranthus ruber   Red/pink
Island mountain-mahogany   Cercocarpus betuloides var. blancheae   No visible color, very small flower
Catalina Island mountain-mahogany   Cercocarpus traskiae   1
California goosefoot   Chenopodium californicum   No visible color, very small flower
Nettle-leaf goosefoot   Chenopodium murale   No visible color, very small flower
Soap plant   Chlorogalum pomeridianum   White
Turkish rugging   Chorizanthe staticoides   Pink
Cobwebby thistle   Cirsium occidentale var. occidentale   Purple
Bull thistle   Cirsium vulgare   Purple
Seaside cistanthe   Cistanthe maritima   Purple
Willow-herb clarkia   Clarkia epilobioides   White
Wine cup clarkia   Clarkia purpurea subsp. quadrivulnera   Purple
Miner???_??s lettuce   Claytonia perfoliata subsp. mexicana   No visible color, very small flower
Western virgin's bower   Clematis ligusticifolia   White
Summer holly   Comarostaphylis diversifolia subsp. planifolia   White
Nevin's woolly sunflower   Constancea nevinii   Yellow
Small-flowered morning-glory   Convolvulus simulans   White/pink
Cud-weed aster   Corethrogyne filaginifolia   Purple/white
Pampas grass   Cortaderia selloana   White
Brass-buttons   Cotula coronopifolia   Yellow
Alkali weed   Cressa truxillensis   White
Island rush-rose   Crocanthemum greenei   1
Peak rush-rose   Crocanthemum scoparium   Yellow
Catalina crossosoma   Crossosoma californicum   White
Turkey-mullein   Croton setiger   No visible color, very small flower
White forgive-me-not   Cryptantha intermedia   White
Wiggins' cryptantha   Cryptantha wigginsii   White
Coast cholla   Cylindropuntia prolifera   Red
Bermuda grass   Cynodon dactylon   No visible color, very small flower
D
Jimson weed   Datura wrightii   White
Rattlesnake weed   Daucus pusillus   White
Island tarplant   Deinandra clementina   Yellow
Common tarplant   Deinandra fasciculata   Yellow
Maritime larkspur   Delphinium parryi subsp. maritimum   Blue
Channel island tree poppy   Dendromecon harfordii   Yellow
Blue dicks   Dichelostemma capitatum   Blue
Western dichondra   Dichondra occidentalis   No visible color, very small flower
Salt grass   Distichlis spicata   No visible color, very small flower
Wood fern   Dryopteris arguta   Fern
Catalina liveforever   Dudleya virens subsp. hassei   Yellow
Island green dudleya   Dudleya virens subsp. insularis   Yellow
E
Giant wild-rye   Elymus condensatus   No visible color, very small flower
Bush sunflower   Encelia californica   Yellow
California fuchsia   Epilobium canum subsp. canum   Red
Smooth scouring rush   Equisetum laevigatum   No visible color, very small flower
Giant horsetail   Equisetum telmateia subsp. braunii   No visible color, very small flower
Palmer???_??s goldenbush   Ericameria palmeri var. pachylepis   Yellow
Flax-leaved fleabane   Erigeron bonariensis   White
Trask???_??s yerba santa   Eriodictyon traskiae subsp. traskiae   Purple
St. Catherine's lace   Eriogonum giganteum var. giganteum   White
Island buckwheat   Eriogonum grande var. grande   Red
Golden-yarrow   Eriophyllum confertiflorum var. confertiflorum   Yellow
Redstem filaree   Erodium cicutarium   Pink
Greenstem filaree   Erodium moschatum   Pink
California poppy   Eschscholzia californica   Orange
Island poppy   Eschscholzia ramosa   Yellow
Gum trees   Eucalyptus spp.   Brown
Cliff spurge   Euphorbia misera   White/red
Petty spurge   Euphorbia peplus   No visible color, very small flower
California orach   Extriplex californica   No visible color, very small flower
F
Rattail sixweeks grass   Festuca myuros   No visible color, very small flower
Edible fig   Ficus carica   No visible color, very small flower
Fennel   Foeniculum vulgare   Yellow
Alkali heath   Frankenia salina   Pink
G
Narrowly leaved bedstraw   Galium angustifolium subsp. angustifolium   No visible color, very small flower
Goose grass   Galium aparine   No visible color, very small flower
Santa Catalina Island bedstraw   Galium catalinense subsp. catalinense   No visible color, very small flower
Nuttall???_??s island bedstraw   Galium nuttallii subsp. insulare   No visible color, very small flower
Showy island snapdragon   Gambelia speciosa   Red
Dyer???_??s greenwold   Genista linifolia   Yellow
Chaparral gilia   Gilia angelensis   White
Nevin's gilia   Gilia nevinii   Purple
H
Palmer's grapplinghook   Harpagonella palmeri   White
Saw-toothed goldenbush   Hazardia squarrosa var. grindelioides   Yellow
Alkali heliotrope   Heliotropium curassavicum var. oculatum   White
Toyon   Heteromeles arbutifolia   White
Telegraph weed   Heterotheca grandiflora   Yellow
Shortpod mustard   Hirschfeldia incana   Yellow
Oceanspray   Holodiscus discolor var. discolor   White
Bobtail barley   Hordeum intercedens   No visible color, very small flower
Smooth barley   Hordeum murinum subsp. glaucum   No visible color, very small flower
Smooth cat???_??s-ear   Hypochaeris glabra   Yellow
I
Menzies coast goldenbush   Isocoma menziesii var. menziesii   Yellow
J
Island jepsonia   Jepsonia malvifolia   White
Southwestern spiny rush   Juncus acutus subsp. leopoldii   No visible color, very small flower
K
Heart-leaved penstemon   Keckiella cordifolia   Red
L
Goldentop   Lamarckia aurea   No visible color, very small flower
Common goldfields   Lasthenia gracilis   Yellow
Wine red wild sweetpea   Lathyrus vestitus var. alefeldii   Red/purple
Tidy-tips   Layia platyglossa   Yellow
Fragrant pitcher sage   Lepechinia fragrans   Purple
Shining peppergrass   Lepidium nitidum   No visible color, very small flower
True baby stars   Leptosiphon bicolor   Pink
Giant coreopsis   Leptosyne gigantea   Yellow
Ground pink   Linanthus dianthiflorus   Purple
Dunn's lobelia   Lobelia dunnii var. serrata   Blue
California cottonrose   Logfia filaginoides   No visible color, very small flower
Hairy honeysuckle   Lonicera hispidula   Pink
Silver bush lupine   Lupinus albifrons var. albifrons   Purple
Miniature lupine   Lupinus bicolor   Purple
Bajada lupine   Lupinus concinnus   Purple
Stinging lupine   Lupinus hirsutissimus   Purple
Arroyo lupine   Lupinus succulentus   Purple
Truncate lupine   Lupinus truncatus   Purple
Santa Catalina Island desert-thorn   Lycium brevipes var. hassei   Purple
California box-thorn   Lycium californicum   White
Santa Catalina Island ironwood   Lyonothamnus floribundus subsp. floribundus   White
Scarlet pimpernel   Lysimachia arvensis   Orange/blue
M
Threadstem tarweed   Madia exigua   Yellow
Gumweed   Madia gracilis   Yellow
Santa Catalina Island bush-mallow   Malacothamnus fasciculatus var. catalinensis   Pink
Cliff aster   Malacothrix saxatilis var. tenuifolia   White
Laurel sumac   Malosma laurina   White
Malva rosa   Malva assurgentiflora subsp. glabra   Pink
Cheeseweed   Malva parviflora   White/purple
Wild cucumber   Marah macrocarpa   White
Horehound   Marrubium vulgare   White
Pineapple weed   Matricaria discoidea   Yellow
California burclover   Medicago polymorpha   Yellow
Little California melica   Melica imperfecta   No visible color, very small flower
Sourclover   Melilotus indicus   Yellow
Crystalline iceplant   Mesembryanthemum crystallinum   White
Slender-leaved iceplant   Mesembryanthemum nodiflorum   White
Red bush monkeyflower   Mimulus aurantiacus   Red/orange
Scarlet monkeyflower   Mimulus cardinalis   Red
Creek monkeyflower   Mimulus guttatus   Yellow
Santa Catalina Island monkeyflower   Mimulus traskiae   White
Wishbone bush   Mirabilis laevis var. crassifolia   Purple
N
Water cress   Nasturtium officinale   White
Tree tobacco   Nicotiana glauca   Yellow
Blue toadflax   Nuttallanthus texanus   Purple
O
California adder???_??s-tongue   Ophioglossum californicum   No visible color, very small flower
Mission prickly-pear   Opuntia ficus-indica   Yellow
Coastal prickly pear   Opuntia littoralis   Yellow/orange
Short-lobed broomrape   Orobanche bulbosa   Yellow
Bermuda buttercup   Oxalis pes-caprae   Yellow
P
Fire poppy   Papaver californicum   Orange
Pellitory   Parietaria hespera var. hespera   No visible color, very small flower
Narrow-toothed pectocarya   Pectocarya linearis subsp. ferocula   White
Coffee fern   Pellaea andromedifolia   No visible color, very small flower
Lyon???_??s pentachaeta   Pentachaeta lyonii   1
Goldback fern   Pentagramma triangularis subsp. triangularis   No visible color, very small flower
Silverback fern   Pentagramma triangularis subsp. viscosa   No visible color, very small flower
Bladderpod   Peritoma arborea var. globosa   Yellow
Emory???_??s rock daisy   Perityle emoryi   White
Caterpillar phacelia   Phacelia cicutaria var. hispida   Purple
Lyon???_??s phacelia   Phacelia lyonii   Blue
Harding grass   Phalaris aquatica   No visible color, very small flower
Canary Island palm   Phoenix canariensis   No visible color, very small flower
White fiesta flower   Pholistoma racemosum   Purple
Canary Island pine   Pinus canariensis   No visible color, very small flower
Aleppo pine   Pinus halepensis   No visible color, very small flower
Chaparral rein-orchid   Piperia cooperi   No visible color, very small flower
Mock orange   Pittosporum undulatum   White
Popcorn flower   Plagiobothrys canescens   White
Rattail plantain   Plantago coronopus   No visible color, very small flower
California plantain   Plantago erecta   No visible color, very small flower
Saltmarsh fleabane   Pluchea odorata var. odorata   Pink
One-sided blue grass   Poa secunda subsp. secunda   No visible color, very small flower
California dissanthelium   Poa thomasii   No visible color, very small flower
Common knotweed   Polygonum aviculare subsp. depressum   No visible color, very small flower
California polypody   Polypodium californicum   No visible color, very small flower
Ditch beard grass   Polypogon interruptus   No visible color, very small flower
Black cottonwood   Populus trichocarpa   No visible color, very small flower
Island shooting star   Primula clevelandii var. insularis   Purple/white
Catalina cherry   Prunus ilicifolia subsp. lyonii   White
Two-tone everlasting   Pseudognaphalium biolettii   White
California everlasting   Pseudognaphalium californicum   White
Weedy cudweed   Pseudognaphalium luteoalbum   White/yellow
Woodland threadstem   Pterostegia drymarioides   No visible color, very small flower
Q
Island scrub oak   Quercus pacifica   No visible color, very small flower
Island oak   Quercus tomentella   No visible color, very small flower
Macdonald oak   Quercus _macdonaldii   No visible color, very small flower
R
California chicory   Rafinesquia californica   White
Radish   Raphanus sativus   Purple/white/yellow/pink
Island redberry   Rhamnus pirifolia   No visible color, very small flower
Lemonade berry   Rhus integrifolia   White
Sugar bush   Rhus ovata   Pink
Santa Catalina Island currant   Ribes viburnifolium   Red
Castor bean   Ricinus communis   Red
Coulter's matilija poppy   Romneya coulteri   White
California rose   Rosa californica   Pink
California blackberry   Rubus ursinus   White
Curly dock   Rumex crispus   No visible color, very small flower
S
Arroyo willow   Salix lasiolepis   White
Russian thistle   Salsola australis   White
White sage   Salvia apiana   White
Black sage   Salvia mellifera   White
Blue elderberry   Sambucus nigra subsp. caerulea   Yellow
Sanicle   Sanicula arguta   Yellow
Pacific sanicle   Sanicula crassicaulis   Yellow
Peruvian pepper tree   Schinus molle   White
Santa Catalina figwort   Scrophularia villosa   No visible color, very small flower
Bigelow's spike-moss   Selaginella bigelovii   No visible color, very small flower
Santa Cruz Island rockcress   Sibara filifolia   1
Sleepy catchfly   Silene antirrhina   Pink
Windmill pink   Silene gallica   Pink
Milk thistle   Silybum marianum   Purple
Western blue-eyed-grass   Sisyrinchium bellum   Blue
White Douglas???_?? nightshade   Solanum douglasii   White
Wallace???_??s nightshade   Solanum wallacei   Purple
California goldenrod   Solidago velutina subsp. californica   Yellow
Prickly sow thistle   Sonchus asper subsp. asper   Yellow
Common sow thistle   Sonchus oleraceus   Yellow
Spanish broom   Spartium junceum   Yellow
Boccone's sand-spurrey   Spergularia bocconi   Pink
Sticky sand-spurrey   Spergularia macrotheca var. macrotheca   Pink
Scaly tree fern   Sphaeropteris cooperi   No visible color, very small flower
Common chickweed   Stellaria media   White
Wand chicory   Stephanomeria virgata subsp. virgata   White/purple
Nodding needle grass   Stipa cernua   No visible color, very small flower
Foothill needle grass   Stipa lepida   No visible color, very small flower
Smilo grass   Stipa miliacea var. miliacea   No visible color, very small flower
Purple needle grass   Stipa pulchra   No visible color, very small flower
Everlasting neststraw   Stylocline gnaphaloides   No visible color, very small flower
Woolly seablite   Suaeda taxifolia   No visible color, very small flower
Creeping snowberry   Symphoricarpos mollis   Pink
T
Saltcedar   Tamarix ramosissima   Pink
Fringepod   Thysanocarpus laciniatus   White
Knotted hedge-parsley   Torilis arvensis   White
Poison oak   Toxicodendron diversilobum   White
Salsify   Tragopogon porrifolius   Pink
Vinegar weed   Trichostema lanceolatum   Purple
Pinpoint clover   Trifolium gracilentum   Pink
Small-head clover   Trifolium microcephalum   Pink
Tomcat clover   Trifolium willdenovii   Pink
Venus looking-glass   Triodanis biflora   Purple
Southern cattail   Typha domingensis   No visible color, very small flower
Broad-leaved cattail   Typha latifolia   No visible color, very small flower
U
Silverpuffs   Uropappus lindleyi   Yellow
Hoary nettle   Urtica gracilis subsp. holosericea   No visible color, very small flower
V
Slender vetch   Vicia hassei   Purple
Deerpea vetch   Vicia ludoviciana subsp. ludoviciana   Purple
Greater periwinkle   Vinca major   Purple
Johnny-jump-up   Viola pedunculata   Yellow
W
California fan palm   Washingtonia robusta   No visible color, very small flower
X
Spiny cocklebur   Xanthium spinosum   No visible color, very small flower
Cocklebur   Xanthium strumarium   No visible color, very small flower
Mission manzanita   Xylococcus bicolor   White
Z
California centaury   Zeltnera venusta   Pink
 

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