Non-Native Plants of Southern California Sorted By Commonness See The Most Common Non-Native Plants of Southern California for an introduction to this page, and important caveats about this list.
This table presents all the 608 non-native taxa found in at least one plant trail guide or digitized flora. The taxa are sorted in declining order of the number of guides and floras that contain each taxa.
Keep in mind that this list simply counts the number of lists in which at least one specimen of each taxa occurs. The abundance of these taxa may be quite different from that count.
#all #trails #floras Latin Name Common Name 96 55 41 Erodium cicutarium redstem filaree 90 51 39 Bromus diandrus ripgut brome 89 52 37 Bromus madritensis ssp. rubens red brome 88 51 37 Hirschfeldia incana shortpod mustard 81 45 36 Centaurea melitensis tocalote 77 39 38 Avena barbata slender wild oats 75 42 33 Lactuca serriola prickly lettuce 75 41 34 Sonchus oleraceus sow thistle 75 40 35 Medicago polymorpha California burclover 71 45 26 Filago gallica narrowleaf filago 70 36 34 Hordeum murinum foxtail barley 70 32 38 Marrubium vulgare horehound 69 43 26 Vulpia myuros rattail fescue 69 40 29 Bromus hordeaceus soft chess 69 35 34 Hypochaeris glabra smooth cat's ear 69 33 36 Silene gallica windmill pink 67 32 35 Anagallis arvensis scarlet pimpernel 60 26 34 Avena fatua wild oats 60 25 35 Salsola tragus Russian thistle 59 24 35 Melilotus indicus sourclover 58 30 28 Cynodon dactylon Bermuda grass 58 25 33 Stellaria media common chickweed 56 19 37 Nicotiana glauca tree tobacco 55 23 32 Rumex crispus curly dock 54 30 24 Sonchus asper ssp. asper prickly sow thistle 54 21 33 Lamarckia aurea goldentop 52 20 32 Erodium moschatum white-stemmed filaree 52 19 33 Malva parviflora cheeseweed 50 22 28 Polypogon monspeliensis rabbits-foot grass 50 18 32 Polygonum arenastrum knotweed 49 18 31 Senecio vulgaris common groundsel 48 22 26 Schismus barbatus Mediterranean schismus 47 19 28 Cerastium glomeratum mouse-ear chickweed 47 19 28 Piptatherum miliaceum smilo grass 46 20 26 Sisymbrium officinale hedge mustard 46 19 27 Plantago lanceolata English plantain 45 17 28 Cotula australis Australian brass-buttons 44 19 25 Chamomilla suaveolens pineapple weed 44 11 33 Raphanus sativus purple wild radish 43 15 28 Ricinus communis castor bean 43 12 31 Sisymbrium orientale Oriental mustard 42 21 21 Carduus pycnocephalus Italian thistle 42 16 26 Conyza bonariensis little horseweed 42 11 31 Chenopodium album white goosefoot 41 21 20 Bromus tectorum downy brome 41 17 24 Cirsium vulgare bull thistle 40 13 27 Foeniculum vulgare fennel 40 11 29 Erodium botrys long-beaked filaree 39 12 27 Amaranthus albus tumble pigweed 37 24 13 Gastridium ventricosum nit grass 37 19 18 Hedypnois cretica Crete weed 36 16 20 Gnaphalium luteo-album common cudweed 35 11 24 Poa annua annual blue grass 35 9 26 Capsella bursa-pastoris shepherd's purse 35 9 26 Silybum marianum milk thistle 34 17 17 Lolium multiflorum Italian rye-grass 34 11 23 Pennisetum setaceum fountain grass 33 19 14 Vicia villosa ssp. varia winter vetch 33 7 26 Plantago major common plantain 32 10 22 Atriplex semibaccata creeping Australian saltbush 31 9 22 Sisymbrium irio London rocket 31 8 23 Arundo donax giant reed 31 8 23 Melilotus albus white sweetclover 30 10 20 Euphorbia peplus petty spurge 30 8 22 Spartium junceum Spanish broom 30 5 25 Chenopodium ambrosioides Mexican tea 29 6 23 Lobularia maritima sweet alyssum 28 5 23 Brassica nigra black mustard 28 5 23 Conium maculatum poison hemlock 27 13 14 Spergularia bocconei sand spurrey 27 11 16 Picris echioides bristly ox-tongue 27 3 24 Chenopodium murale nettle-leaved goosefoot 26 14 12 Erodium brachycarpum short-fruited filaree 26 9 17 Rumex conglomeratus whorled dock 26 7 19 Lamium amplexicaule henbit 26 7 19 Oxalis pes-caprae Bermuda buttercup 25 10 15 Sisymbrium altissimum tumble-mustard 25 8 17 Anthriscus caucalis bur chervil 25 8 17 Vinca major greater periwinkle 24 14 10 Lythrum hyssopifolia grass poly 24 10 14 Olea europaea olive 24 8 16 Polycarpon tetraphyllum four-leaf polycarp 24 5 19 Schinus molle Peruvian pepper tree 24 2 22 Brassica rapa field mustard 23 3 20 Apium graveolens celery 22 12 10 Trifolium hirtum rose clover 22 3 19 Veronica anagallis-aquatica water speedwell 21 3 18 Convolvulus arvensis field bindweed 21 2 19 Tribulus terrestris puncture-vine 21 2 19 Urtica urens dwarf nettle 20 14 6 Torilis nodosa hedge parsley 20 5 15 Taraxacum officinale common dandelion 20 4 16 Eucalyptus globulus blue gum 20 1 19 Bromus catharticus rescue grass 18 12 6 Tragopogon dubius yellow salsify 18 6 12 Ageratina adenophora eupatory 18 4 14 Agrostis viridis green bentgrass 18 4 14 Cotula coronopifolia brass-buttons 17 6 11 Opuntia ficus-indica mission cactus 17 2 15 Anthemis cotula dog-fennel 16 13 3 Geranium dissectum cut-leaved geranium 16 9 7 Paspalum dilatatum dallis grass 16 4 12 Bidens pilosa var. pilosa common beggar-ticks 16 4 12 Chrysanthemum coronarium crown daisy 16 4 12 Cynara cardunculus artichoke thistle 16 4 12 Tropaeolum majus nasturtium 16 2 14 Hordeum vulgare var. trifurcatum cultivated barley 16 2 14 Medicago sativa alfalfa 15 7 8 Robinia pseudoacacia black locust 15 4 11 Chenopodium botrys Jerusalem oak 15 0 15 Echinochloa crus-galli barnyard grass 14 7 7 Galium parisiense wall bedstraw 14 6 8 Vicia sativa ssp. sativa spring vetch 14 5 9 Mesembryanthemum crystallinum crystalline ice plant 14 3 11 Rubus discolor Himalaya blackberry 14 3 11 Tamarix ramosissima saltcedar 14 3 11 Triticum aestivum common wheat 14 2 12 Chamaesyce maculata spotted spurge 14 2 12 Phalaris aquatica Harding grass 14 1 13 Avena sativa common oats 13 6 7 Brachypodium distachyon purple false-brome 13 4 9 Mentha spicata var. spicata spearmint 13 3 10 Festuca arundinacea tall fescue 13 2 11 Lolium perenne English rye-grass 12 7 5 Crassula tillaea Mediterranean pygmy-weed 12 6 6 Torilis arvensis field hedge-parsley 12 3 9 Cyperus involucratus umbrella plant 12 3 9 Verbascum thapsus common mullein 12 2 10 Spergula arvensis ssp. arvensis starwort 12 1 11 Cnicus benedictus blessed thistle 12 1 11 Pennisetum clandestinum kikuyu grass 12 0 12 Ailanthus altissima tree-of-heaven 12 0 12 Digitaria sanguinalis crabgrass 12 0 12 Portulaca oleracea common purslane 12 0 12 Vulpia sp. 11 4 7 Lolium temulentum darnel 11 4 7 Vulpia bromoides brome fescue 11 3 8 Ficus carica common fig 11 2 9 Cakile maritima European sea rocket 11 2 9 Coronopus didymus lesser swine cress 11 2 9 Myoporum laetum campground shrub 11 1 10 Carpobrotus edulis yellow ice plant 11 1 10 Phalaris minor little-seed canarygrass 11 1 10 Verbascum blattaria moth mullein 11 0 11 Amaranthus retroflexus red-rooted amaranth 11 0 11 Bassia hyssopifolia five-hook bassia 11 0 11 Lotus corniculatus bird's-foot lotus 11 0 11 Schinus terebinthifolius Brazilian pepper tree 11 0 11 Sorghum halepense johnsongrass 10 4 6 Dimorphotheca sinuata African daisy 10 4 6 Nerium oleander oleander 10 2 8 Cortaderia jubata pampas grass 10 2 8 Dactylis glomerata orchard-grass 10 2 8 Phoenix canariensis Canary Island date palm 10 1 9 Cortaderia selloana pampas grass 10 1 9 Eucalyptus camaldulensis Red River gum 10 0 10 Spergularia villosa hairy sand-spurrey 9 6 3 Gazania X (mounding hybrid) gazania 9 5 4 Hordeum marinum ssp. gussoneanum Mediterranean barley 9 4 5 Agropyron desertorum desert crested wheatgrass 9 4 5 Brassica tournefortii Asian mustard 9 3 6 Acacia longifolia golden wattle 9 3 6 Rhynchelytrum repens Natal grass 9 3 6 Verbascum virgatum wand mullein 9 2 7 Poa bulbosa bulbous blue grass 9 1 8 Agrostis stolonifera creeping bentgrass 9 1 8 Centaurea solstitialis yellow star-thistle 9 1 8 Limonium perezii marsh rosemary 9 1 8 Mesembryanthemum nodiflorum slender-leaved ice plant 9 1 8 Oxalis corniculata creeping woodsorrel 9 1 8 Polypogon interruptus ditch beard grass 9 1 8 Tragopogon porrifolius salsify 8 3 5 Elytrigia intermedia ssp. intermedia intermediate wheatgrass 8 2 6 Bromus arenarius Australian brome 8 2 6 Carpobrotus chilensis sea fig 8 2 6 Matthiola incana stock 8 1 7 Ehrharta calycina perennial veldt grass 8 1 7 Geranium molle dove's-foot geranium 8 1 7 Lepidium latifolium broad-leaved pepper-grass 8 1 7 Parapholis incurva sickle grass 8 1 7 Tetragonia tetragonioides New Zealand spinach 8 0 8 Bromus hordeaceus ssp. hordaceus soft chess 8 0 8 Herniaria hirsuta ssp. cinerea grey herniaria 8 0 8 Lolium sp. 8 0 8 Rumex acetosella common sheep sorrel 8 0 8 Solanum elaeagnifolium horse-nettle 7 6 1 Poa infirma weak blue grass 7 4 3 Pinus halapensis Aleppo pine 7 3 4 Malva sylvestris high mallow 7 3 4 Sinapis arvensis charlock 7 2 5 Agave americana American agave 7 2 5 Washingtonia robusta Mexican Fan Palm 7 1 6 Asparagus officinalis ssp. officinalis asparagus 7 1 6 Hedera helix English ivy 7 1 6 Lathyrus latifolius perennial sweet pea 7 1 6 Sanguisorba minor ssp. muricata garden burnet 7 0 7 Atriplex rosea tumbling oracle 7 0 7 Centranthus ruber Jupiter's beard 7 0 7 Chenopodium pumilio clammy goosefoot 7 0 7 Medicago lupulina black medick 7 0 7 Secale cereale rye 7 0 7 Trifolium repens white clover 7 0 7 Veronica persica bird's-eye speedwell 7 0 7 Vicia villosa purple vetch 6 4 2 Aegilops cylindrica jointed goatgrass 6 2 4 Cistus ladanifer crimson-spot rockrose 6 1 5 Asphodelus fistulosus onionweed 6 1 5 Euphorbia lathyris gopher plant 6 0 6 Bromus sp. 6 0 6 Chenopodium macrospermum var. halophilum coast goosefoot 6 0 6 Crypsis vaginiflora African prickle grass 6 0 6 Genista monspessulana French broom 6 0 6 Phalaris paradoxa hood canarygrass 6 0 6 Prunus persica peach 6 0 6 Schismus arabicus Mediterranean grass 6 0 6 Trifolium pratense red clover 5 3 2 Ehrharta longiflora annual veldt grass 5 2 3 Cerastium fontanum ssp. vulgare perennial mouse-ear chickweed 5 1 4 Chloris virgata feather finger grass 5 1 4 Echinochloa colona jungle rice 5 1 4 Limonium sinuatum statice 5 1 4 Pteris vittata ladder brake 5 1 4 Senecio mikanioides German ivy 5 0 5 Cannabis sativa marijuana 5 0 5 Cichorium intybus chicory 5 0 5 Crypsis schoenoides swamp grass 5 0 5 Descurainia sophia herb sophia 5 0 5 Eucalyptus sp. Eucalyptus 5 0 5 Hordeum sp. wild barley 5 0 5 Lepidium perfoliatum Klamath pepper-grass 5 0 5 Lycopersicon esculentum tomato 5 0 5 Malephora crocea orange/red ice plant 5 0 5 Malva nicaeensis bull mallow 5 0 5 Poa palustris fowl blue grass 5 0 5 Poa pratensis Kentucky blue grass 5 0 5 Poa pratensis ssp. pratensis Kentucky blue grass 5 0 5 Polygonum argyrocoleon silver-sheath knotweed 5 0 5 Raphanus raphanistrum yellow wild radish 5 0 5 Tamarix parviflora tamarisk 5 0 5 Vicia sativa common vetch 5 0 5 Vicia villosa ssp. villosa hairy vetch 4 3 1 Crassula ovata jade plant 4 2 2 Colutea arborescens bladder senna 4 2 2 Phalaris caroliniana Carolina canarygrass 4 2 2 Punica granatum pomegranate 4 2 2 Rosmarinus officinalis rosemary 4 1 3 Aloe saponaria soap aloe 4 1 3 Brassica fruticulosa Mediterranean cabbage 4 1 3 Chamaesyce prostrata prostrate spurge 4 1 3 Ehrharta erecta upright veldt grass 4 1 3 Elytrigia pontica ssp. pontica tall wheatgrass 4 1 3 Lunaria annua annual moonwort 4 1 3 Osteospermum fruticosum freeway daisy 4 1 3 Passiflora caerulea passion flower 4 1 3 Tamarix sp. tamarisk 4 1 3 Veronica arvensis corn speedwell 4 0 4 Aira caryophyllea silver hairgrass 4 0 4 Alcea rosea hollyhock 4 0 4 Amaranthus hybridus slim amaranth 4 0 4 Beta vulgaris sea beet 4 0 4 Bromus inermis ssp. inermis smooth brome 4 0 4 Bromus trinii Chilean chess 4 0 4 Callistemon sp. bottlebrush 4 0 4 Centaurea maculosa spotted knapweed 4 0 4 Chenopodium multifidum cut-leaved goosefoot 4 0 4 Commelina benghalensis dayflower 4 0 4 Cynosurus echinatus hedgehog dogtail-grass 4 0 4 Elytrigia elongata tall wheatgrass 4 0 4 Emex spinosa devil's thorn 4 0 4 Eragrostis cilianensis stinkgrass 4 0 4 Euphorbia terracina Geraldton carnation spurge 4 0 4 Gaura sinuata Red-River gaura 4 0 4 Hypochaeris radicata rough cat's ear 4 0 4 Linum usitatissimum common flax 4 0 4 Malus sylvestris domestic apple 4 0 4 Plantago indica Indian plantain 4 0 4 Setaria viridis green foxtail 4 0 4 Spergularia rubra red sandspurry 4 0 4 Tanacetum parthenium feverfew 3 3 0 Cupressus arizonica ssp. glabra Arizona cypress 3 2 1 Carya illinoensis pecan 3 2 1 Chasmanthe floribunda chasmanthe 3 2 1 Cistus Xpurpureus orchid rockrose 3 2 1 Galium murale tiny bedstraw 3 2 1 Kickxia spuria roundleaf fluellin 3 1 2 Acroptilon repens Russian knapweed 3 1 2 Centaurea cyanus bachelor's button 3 1 2 Lantana montevidensis trailing lantana 3 1 2 Linaria maroccana Moroccan toad-flax 3 1 2 Pinus canariensis Canary Island pine 3 1 2 Polypogon maritimus Mediterranean beard grass 3 1 2 Ulmus parvifolia Chinese elm 3 1 2 Vicia sativa ssp. nigra common vetch 3 0 3 Acacia farnesiana var. farnesiana sweet acacia 3 0 3 Amaranthus deflexus large-fruited amaranth 3 0 3 Artemisia biennis biennial sagewort 3 0 3 Asparagus asparagoides smilax 3 0 3 Atriplex sp. new saltbush 3 0 3 Briza minor little quaking grass 3 0 3 Bromus madritensis foxtail chess 3 0 3 Camelina microcarpa little-podded falseflax 3 0 3 Cytisus striatus Portuguese broom 3 0 3 Datura stramonium Jimson weed 3 0 3 Eragrostis curvula var. curvula weeping lovegrass 3 0 3 Eucalyptus tereticornis forest red gum 3 0 3 Festuca pratensis meadow fescue 3 0 3 Galinsoga parviflora var. parviflora few-flowered galinsoga 3 0 3 Gazania linearis gazania 3 0 3 Iris Xgermanica iris 3 0 3 Linaria genistifolia ssp. dalmatica Dalmatian toad-flax 3 0 3 Melia azedarach Persian lilac 3 0 3 Morus alba mulberry 3 0 3 Oenothera laciniata southern evening-primrose 3 0 3 Phalaris canariensis canarygrass 3 0 3 Phleum pratense timothy 3 0 3 Physalis philadelphica tomatillo 3 0 3 Plantago coronopus cut-leaf plantain 3 0 3 Poa compressa Canada blue grass 3 0 3 Potamogeton crispus crispate-leaved pondweed 3 0 3 Prunus mahaleb 3 0 3 Pulicaria paludosa Spanish false-fleabane 3 0 3 Rubus laciniatus cut-leaved blackberry 3 0 3 Salsola paulsenii Paulsen's Russian thistle 3 0 3 Sherardia arvensis field madder 3 0 3 Stenotaphrum secundatum Saint Augustine grass 3 0 3 Vicia benghalensis purple vetch 3 0 3 Washingtonia sp. fan palm 2 1 1 Acacia baileyana Cootamundra wattle 2 1 1 Acacia cyclops coastal wattle 2 1 1 Bromus madritensis ssp. madritensis foxtail chess 2 1 1 Cardamine hirsuta hairy toothwort 2 1 1 Cenchrus echinatus southern sandbur 2 1 1 Digitalis purpurea purple foxglove 2 1 1 Elytrigia repens quackgrass 2 1 1 Hainardia cylindrica barbgrass 2 1 1 Myoporum parvifolium prostrate myoporum 2 1 1 Petrorhagia dubia wild carnation 2 1 1 Phytolacca americana pokeweed 2 1 1 Pistacia chinensis Chinese pistachio 2 1 1 Syringa vulgaris cultivated lilac 2 1 1 Tamarix aphylla athel 2 0 2 Acacia decurrens green wattle 2 0 2 Albizia julibrissin silk tree 2 0 2 Araujia sericifera cruel plant 2 0 2 Buddleja saligna squarestem butterfly bush 2 0 2 Callicore rosea amaryllis belladonna? 2 0 2 Carpobrotus chilensis X C. edulis sea fig 2 0 2 Catalpa bignonioides catalpa 2 0 2 Cenchrus longispinus mat sandbur 2 0 2 Chenopodium strictum var. glaucophyllum white-leaved goosefoot 2 0 2 Chrysanthemum sp. Chrysanthemum 2 0 2 Ciclospermum leptophyllum marsh-parsley 2 0 2 Cirsium ochrocentrum yellow-spined thistle 2 0 2 Cistus creticus pink rockrose 2 0 2 Citrullus colocynthis var. lanatus watermelon 2 0 2 Cotoneaster sp. cotoneaster 2 0 2 Cyperus rotundus nutgrass 2 0 2 Daucus carota carrot 2 0 2 Echium candicans pride of Madeira 2 0 2 Elaeagnus angustifolia 2 0 2 Eragrostis barrelieri Mediterranean lovegrass 2 0 2 Eragrostis curvula var. conferta weeping lovegrass 2 0 2 Eragrostis minor little lovegrass 2 0 2 Gazania sp. gazania 2 0 2 Geranium rotundifolium round-leaved geranium 2 0 2 Grindelia squarrosa var. serrulata curlycup gumweed 2 0 2 Heliotropium amplexicaule clasping heliotrope 2 0 2 Holcus lanatus common velvetgrass 2 0 2 Hypericum perforatum Klamath weed 2 0 2 Juglans californica var. californica X J. regia hybrid walnut 2 0 2 Juglans regia English walnut 2 0 2 Kochia scoparia common red sage 2 0 2 Lathyrus odoratus sweet pea 2 0 2 Lepidium pinnatifidum wayside pepper-grass 2 0 2 Lepidium virginicum var. virginicum wild pepper-grass 2 0 2 Leptospermum laevigatum Australian tea tree 2 0 2 Linum grandiflorum flowering flax 2 0 2 Lonicera japonica Japanese honeysuckle 2 0 2 Melilotus officinalis yellow sweetclover 2 0 2 Mentha citrata orange bergamot mint 2 0 2 Mentha suaveolens apple mint 2 0 2 Modiola caroliniana Carolina bristle mallow 2 0 2 Mollugo cerviana carpet-weed 2 0 2 Mollugo verticillata green carpetweed 2 0 2 Narcissus tazetta narcissus 2 0 2 Nepeta cataria catnip 2 0 2 Osteospermum ecklonis African daisy 2 0 2 Panicum miliaceum broom-corn millet 2 0 2 Paspalum urvillei Vasey's grass 2 0 2 Pastinaca sativa wild parsnip 2 0 2 Pelargonium sp. geranium 2 0 2 Pennisetum villosum feathertop 2 0 2 Petroselinum crispum Italian flat-leaf parsley 2 0 2 Petunia violacea 2 0 2 Pisum sativum garden pea 2 0 2 Polygonum convolvulus black bindweed 2 0 2 Polygonum persicaria lady's thumb 2 0 2 Proboscidea louisianica ssp. louisianica common devil's claw 2 0 2 Ranunculus testiculatus tubercled crowfoot 2 0 2 Robinia sp. black locust 2 0 2 Ruta chalepensis fringed rue 2 0 2 Salix discolor pussy willow 2 0 2 Salpichroa origanifolia lily of the valley vine 2 0 2 Saponaria officinalis bouncing bet 2 0 2 Scandix pecten-veneris Venus' needle 2 0 2 Schismus sp. 2 0 2 Senna artemisioides 2 0 2 Setaria pumila yellow bristlegrass 2 0 2 Silene armeria 2 0 2 Solanum nigrum black nightshade 2 0 2 Solanum rostratum buffalo berry 2 0 2 Solanum sarrachoides nightshade 2 0 2 Sorghum bicolor sorghum 2 0 2 Spergularia platensis La Plata sandspurry 2 0 2 Spergularia sp. 2 0 2 Stellaria pallida pale starwort 2 0 2 Tamarix chinensis Chinese tamarisk 2 0 2 Thlaspi arvense fan-weed 2 0 2 Verbena tenuisecta South American mock vervain 2 0 2 Verbesina encelioides ssp. exauriculata golden viguiera 1 1 0 Agrostemma githago common corncockle 1 1 0 Arctostaphylos densiflora Vine Hill manzanita 1 1 0 Bromus sterilis poverty brome 1 1 0 Carissa macrocarpa natal plum 1 1 0 Casuarina equisetifolia Australian pine 1 1 0 Cinnamomum camphora camphor tree 1 1 0 Cosmos bipinnatus garden cosmos 1 1 0 Dianthus barbatus ssp. barbatus sweet william 1 1 0 Euphorbia characias bush spurge 1 1 0 Monarda citriodora Lemon Mint 1 1 0 Myosotis discolor forget-me-not 1 1 0 Nigella damascena love-in-a mist 1 1 0 Parkinsonia aculeata Mexican palo verde 1 1 0 Populus alba white poplar 1 1 0 Rhus lancea African Sumac 1 1 0 Salvia leucantha Mexican bush sage 1 1 0 Vaccaria hispanica Spanish cockle 1 1 0 Veronica catenata chain speedwell 1 0 1 Acacia dealbata silver wattle 1 0 1 Acacia koa acacia 1 0 1 Acacia retinodes ever-blooming acacia 1 0 1 Achillea filipendulina fern-leaf yarrow 1 0 1 Aeonium sp. hybrid aeonium 1 0 1 Agave elephantipes elephant-foot yucca 1 0 1 Agave sisalana sisal 1 0 1 Agrostis capillaris colonial bentgrass 1 0 1 Agrostis gigantea giant bentgrass 1 0 1 Albizia lophantha plume acacia 1 0 1 Allium ampeloprasum 1 0 1 Allium triquetrum three-cornered leek 1 0 1 Allium vineale vineyard onion 1 0 1 Aloe arborescens aloe 1 0 1 Aloe chabaudii aloe 1 0 1 Amaranthus arenicola sandhill amaranth 1 0 1 Amaranthus caudatus quilete 1 0 1 Amaranthus rudis 1 0 1 Ammophila arenaria European beach grass 1 0 1 Anagallis linifolia blue pimpernel 1 0 1 Anchusa arvensis field alkanet 1 0 1 Anethum graveolens dill 1 0 1 Aptenia cordifolia baby sun rose 1 0 1 Arenaria serpyllifolia ssp. serpyllifolia thyme-leaf sandwort 1 0 1 Armoracia rusticana horseradish 1 0 1 Atriplex suberecta peregrine saltbush 1 0 1 Brassica juncea India mustard 1 0 1 Brassica oleraceae cabbage 1 0 1 Bromus japonicus Japanese chess 1 0 1 Bromus secalinus rye brome 1 0 1 Bromus stamineus roadside brome 1 0 1 Buddleja davidii butterfly bush 1 0 1 Caesalpinia gilliesii bird-of-paradise 1 0 1 Cakile edentula sea rocket 1 0 1 Calendula officinalis pot-marigold 1 0 1 Callistemon citrinus 1 0 1 Cardaria draba heart-podded hoary-cress 1 0 1 Cardaria pubescens white-top 1 0 1 Carduus tenuiflorus winged thistle 1 0 1 Castanea dentata American Chestnut 1 0 1 Celtis sinensis Japanese hackberry 1 0 1 Cenchrus incertus coast sandbur 1 0 1 Ceratonia siliqua 1 0 1 Chamaesyce nutans eyebane 1 0 1 Chamelaucium uncinatum Geraldton wax flower 1 0 1 Chenopodium chenopodioides goosefoot 1 0 1 Chenopodium glaucum oak-leaved goosefoot 1 0 1 Chloris gayana Rhodes grass 1 0 1 Chloris verticillata tumble finger grass 1 0 1 Cistus salvifolius sage-leaf rockrose 1 0 1 Cistus sp. rockrose 1 0 1 Coreopsis tinctoria calliopsis 1 0 1 Coronilla valentina ssp. glauca crown vetch 1 0 1 Cortaderia sp. pampas grass 1 0 1 Cotoneaster pannosa woolly cotoneaster 1 0 1 Crassula multicava 1 0 1 Crepis capillaris smooth hawksbeard 1 0 1 Crepis tectorum 1 0 1 Cucumis melo var. dudaim Dudaim melon 1 0 1 Cucurbita pepo 1 0 1 Cycloloma atriplicifolium winged pigweed 1 0 1 Cyperus difformis variable flatsedge 1 0 1 Cypselea humifusa panal 1 0 1 Cyrtomium falcatum Japanese netvein hollyfern 1 0 1 Cytisus scoparius scotch broom 1 0 1 Dactyloctenium aegyptium crows-foot grass 1 0 1 Dianthus armeria ssp. armeria grass pink 1 0 1 Digitaria ischaemum smooth crabgrass 1 0 1 Diplotaxis tenuifolia perennial wall rocket 1 0 1 Dipsacus sativus Fuller's teasel 1 0 1 Disphyma crassifolium ice plant 1 0 1 Draba reptans Carolina draba 1 0 1 Echium plantagineum salvation echium 1 0 1 Eichhornia crassipes water hyacinth 1 0 1 Eragrostis lehmanniana Lehmann lovegrass 1 0 1 Erechtites minima little erechtites 1 0 1 Erigeron karvinskianus Latin American fleabane 1 0 1 Eruca vesicaria ssp. sativa garden rocket 1 0 1 Eucalyptus sideroxylon red iron bark 1 0 1 Euphorbia dendroides tree spurge 1 0 1 Festuca trachyphylla rough-leaved fescue 1 0 1 Ficus palmata wild fig 1 0 1 Fraxinus uhdei shamel ash 1 0 1 Freesia refracta freesia 1 0 1 Fumaria parviflora fine-leaved fumitory 1 0 1 Galenia pubescens coastal galenia 1 0 1 Genista aetnensis 1 0 1 Genista linifolia Mediterranean broom 1 0 1 Glechoma hederacea 1 0 1 Gleditsia triacanthos 1 0 1 Glinus lotoides lotus sweetjuice 1 0 1 Harpephyllum caffrum Kaffir Plum 1 0 1 Hoya carnosa wax flower 1 0 1 Humulus lupulus common hop 1 0 1 Hydrocotyle moschata musk hydrocotyle 1 0 1 Impatiens balfourii Balfour's touch-me-not 1 0 1 Ipomoea purpurea common morning-glory 1 0 1 Iris pseudacorus water iris 1 0 1 Kallstroemia parviflora few-flowered caltrop 1 0 1 Kickxia elatine fluellin 1 0 1 Lampranthus coccineus scarlet ice plant 1 0 1 Lavatera cretica Cornish mallow 1 0 1 Lepidium campestre field pepper-grass 1 0 1 Leucanthemum vulgare oxe-eye daisy 1 0 1 Ligustrum ovalifolium privet 1 0 1 Linaria pinifolia pine-needle toad-flax 1 0 1 Lolium perenne ssp. multiflorum English rye-grass 1 0 1 Lychnis coronaria rose campion 1 0 1 Malva neglecta common mallow 1 0 1 Medicago minima burclover 1 0 1 Melia azedarach var. umbraculiformis Persian lilac 1 0 1 Melissa officinalis lemon balm 1 0 1 Mentha pulegium pennyroyal 1 0 1 Mentha Xpiperita peppermint 1 0 1 Nelumbo lutea American water-lily 1 0 1 Nicotiana acuminata var. multiflora many-flowered tobacco 1 0 1 Nierembergia hippomanica cup flower 1 0 1 Nymphaea odorata water-lily 1 0 1 Opuntia lindheimeriana 1 0 1 Opuntia robusta 1 0 1 Oxalis rubra red oxalis 1 0 1 Pelargonium hortorum 1 0 1 Pelargonium panduriforme oak-leafed geranium 1 0 1 Persea americana var. drymifolia avocado 1 0 1 Phoenix dactylifera date palm 1 0 1 Phyla sp. mat-grass 1 0 1 Physalis pubescens var. integrifolia husk tomato 1 0 1 Pistacia atlantica pistachio 1 0 1 Plantago aristata bristly plantain 1 0 1 Plantago virginica Virginia plantain 1 0 1 Poa trivialis rough blue grass 1 0 1 Polygonum capitatum Himalayan smartweed 1 0 1 Polygonum prolificum bushy knotweed 1 0 1 Polygonum ramosissimum yellow knotweed 1 0 1 Polypogon australis Chilean beard grass 1 0 1 Polypogon viridis 1 0 1 Potentilla norvegica Norwegian cinquefoil 1 0 1 Prosopis velutina velvet mesquite 1 0 1 Prunella vulgaris var. vulgaris self-heal 1 0 1 Prunus dulcis almond 1 0 1 Pteris tremula brake 1 0 1 Pyrancantha angustifolia pyrancantha 1 0 1 Pyrus communis pear 1 0 1 Pyrus sp. pear 1 0 1 Reseda alba white mignonette 1 0 1 Rosa x hybrida ex hort. hybrid tea rose 1 0 1 Rudbeckia hirta var. pulcherrima black-eyed susan 1 0 1 Rumex kerneri Kerner's dock 1 0 1 Rumex obtusifolius bitter dock 1 0 1 Scabiosa atropurpurea pincushion flower 1 0 1 Scirpus tuberosus tubered bulrush 1 0 1 Scleranthus annuus ssp. annuus knawel 1 0 1 Sedum sp. 1 0 1 Senecio serpens 1 0 1 Setaria sp. bristlegrass 1 0 1 Solanum marginatum white-margined nightshade 1 0 1 Soleirolia soleirolii baby's tears 1 0 1 Soliva sessilis common soliva 1 0 1 Sorbus aucuparia European mountain rowan 1 0 1 Sporobolus indicus smutgrass 1 0 1 Sutherlandia frutescens 1 0 1 Tamarix gallica French tamarisk 1 0 1 Trifolium arvense rabbitfoot clover 1 0 1 Trifolium fragiferum strawberry clover 1 0 1 Trifolium hybridum alsike clover 1 0 1 Trifolium incarnatum crimson clover 1 0 1 Ulmus minor smooth-leaved elm, English elm 1 0 1 Ulmus pumila Siberian elm 1 0 1 Vitis vinifera cultivated grape
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Last update: 28 August 2005 (typo corrected 14 February 2006)