| alkaliweed |
Cressa truxillensis |
2 |
| annual bursage |
Ambrosia acanthicarpa |
1 |
| annual pearlwort |
Sagina apetala |
2 |
| Asian ponysfoot |
Dichondra micrantha |
1 |
| Australian burnweed |
Erechtites minimus |
1 |
| Australian saltbush |
Atriplex semibaccata |
1 |
| babysbreath |
Gypsophila paniculata |
1 |
| barbwire Russian-thistle |
Salsola paulsenii |
1 |
| biennial wormwood |
Artemisia biennis |
1 |
| big sagebrush |
Artemisia tridentata |
2 |
| birdseye pearlwort |
Sagina procumbens |
1 |
| birdsrape mustard |
Brassica rapa |
1 |
| bitter lettuce |
Lactuca virosa |
1 |
| black mustard |
Brassica nigra |
1 |
| bladder campion |
Silene latifolia ssp. alba |
1 |
| blessed milkthistle |
Silybum marianum |
2 |
| blue morningglory |
Ipomoea indica |
1 |
| blue mustard |
Chorispora tenella |
1 |
| Boccone's sandspurry |
Spergularia bocconii |
1 |
| bouncingbet |
Saponaria officinalis |
1 |
| brassbuttons |
Cotula coronopifolia |
2 |
| bristly oxtongue |
Helminthotheca echioides |
1 |
| broadleaf forget-me-not |
Myosotis latifolia |
1 |
| buffalo gourd |
Cucurbita foetidissima |
1 |
| California mugwort |
Artemisia douglasiana |
1 |
| Canada thistle |
Cirsium arvense |
1 |
| capeweed |
Arctotheca calendula |
2 |
| citronmelon |
Citrullus lanatus var. citroides |
1 |
| clammy goosefoot |
Dysphania pumilio |
1 |
| clasping heliotrope |
Heliotropium amplexicaule |
1 |
| clasping pepperweed |
Lepidium perfoliatum |
1 |
| common beet |
Beta vulgaris |
1 |
| common borage |
Borago officinalis |
1 |
| common chickweed |
Stellaria pallida |
1 |
| common cocklebur |
Xanthium strumarium |
1 |
| common mouse-ear chickweed |
Cerastium fontanum |
1 |
| common St. Johnswort |
Hypericum perforatum |
1 |
| common tarweed |
Centromadia pungens ssp. pungens |
1 |
| coppery mesemb |
Malephora crocea |
1 |
| corn spurry |
Spergula arvensis |
1 |
| crystalline iceplant |
Mesembryanthemum crystallinum |
1 |
| Cucamonga manroot |
Marah macrocarpus |
1 |
| curlycup gumweed |
Grindelia squarrosa var. serrulata |
2 |
| cutleaf burnweed |
Erechtites glomeratus |
1 |
| cutleaf goosefoot |
Chenopodium multifidum |
1 |
| dandelion |
Taraxacum officinale |
1 |
| diffuse knapweed |
Centaurea diffusa |
1 |
| dwarf St. Johnswort |
Hypericum mutilum |
1 |
| Dyer's woad |
Isatis tinctoria |
1 |
| early wintercress |
Barbarea verna |
1 |
| English daisy |
Bellis perennis |
1 |
| European heliotrope |
Heliotropium europaeum |
1 |
| feverfew |
Tanacetum parthenium |
1 |
| field dodder |
Cuscuta pentagona |
1 |
| field marigold |
Calendula arvensis |
1 |
| Fitch's tarweed |
Hemizonia fitchii |
1 |
| fivehook bassia |
Bassia hyssopifolia |
1 |
| floating pennywort |
Hydrocotyle ranunculoides |
1 |
| glandular Cape marigold |
Dimorphotheca sinuata |
1 |
| greater swinecress |
Coronopus squamatus |
1 |
| hairy bittercress |
Cardamine hirsuta |
2 |
| hairy galinsoga |
Galinsoga quadriradiata |
1 |
| hairy whitetop |
Cardaria pubescens |
1 |
| halogeton |
Halogeton glomeratus |
2 |
| hoary cress |
Lepidium draba |
1 |
| Japanese morningglory |
Ipomoea nil |
1 |
| lawn burweed |
Soliva sessilis |
1 |
| lesser hawkbit |
Leontodon taraxacoides |
1 |
| London rocket |
Sisymbrium irio |
1 |
| mat chaff-flower |
Alternanthera caracasana |
1 |
| Mediterranean saltwort |
Salsola vermiculata |
1 |
| Mexican brassbuttons |
Cotula mexicana |
1 |
| Mexican fireweed |
Kochia scoparia |
1 |
| mexicantea |
Dysphania ambrosioides |
1 |
| narrow-leaved iceplant |
Conicosia pugioniformis |
1 |
| Nuttall povertyweed |
Monolepis nuttalliana |
1 |
| oppositeleaf Russian thistle |
Salsola soda |
1 |
| oxeye daisy |
Leucanthemum vulgare |
1 |
| Pacific poison-oak |
Toxicodendron diversilobum |
1 |
| pappose tarweed |
Centromadia parryi ssp. rudis |
1 |
| perennial pepperweed |
Lepidium latifolium |
1 |
| poverty sumpweed |
Iva axillaris |
3 |
| pride of Madeira |
Echium candicans |
1 |
| prostrate pigweed |
Amaranthus blitoides |
1 |
| purple starthistle |
Centaurea calcitrapa |
1 |
| Queen Anne's lace, wild carrot |
Daucus carota |
1 |
| red orach |
Atriplex rosea |
1 |
| rush skeletonweed |
Chondrilla juncea |
1 |
| Russian knapweed |
Rhaponticum repens |
2 |
| Russian-olive |
Elaeagnus angustifolia |
1 |
| Russian-thistle |
Salsola tragus |
2 |
| saltmarsh sandspurry |
Spergularia salina |
1 |
| salvation jane |
Echium plantagineum |
1 |
| sea fig |
Carpobrotus chilensis |
2 |
| seaside heliotrope |
Heliotropium curassavicum |
1 |
| shortpod mustard |
Hirschfeldia incana |
1 |
| showy milkweed |
Asclepias speciosa |
1 |
| sibara |
Sibara virginica |
1 |
| slenderleaf iceplant |
Mesembryanthemum nodiflorum |
1 |
| smooth cat's ear |
Hypochaeris glabra |
1 |
| smooth hawksbeard |
Crepis capillaris |
1 |
| southern brassbuttons |
Cotula australis |
1 |
| southwestern carrot |
Daucus pusillus |
1 |
| spiny amaranth |
Amaranthus spinosus |
1 |
| spiny sowthistle |
Sonchus asper |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
1 |
| squarrose knapweed |
Centaurea virgata |
1 |
| sticky chickweed |
Cerastium glomeratum |
1 |
| stinking chamomile |
Anthemis cotula |
1 |
| stinkwort |
Dittrichia graveolens |
2 |
| strawflower |
Helichrysum petiolare |
1 |
| triangle orach |
Atriplex prostrata |
1 |
| true forget-me-not |
Myosotis scorpioides |
1 |
| tumble pigweed |
Amaranthus albus |
1 |
| veiny pepperweed |
Lepidium oblongum var. oblongum |
1 |
| venus-comb |
Scandix pecten-veneris |
1 |
| virgate tarweed |
Holocarpha virgata |
1 |
| Virginia pepperweed |
Lepidium virginicum |
1 |
| western marsh cudweed |
Gnaphalium palustre |
1 |
| western ragweed |
Ambrosia psilostachya |
1 |
| white mustard |
Sinapis alba |
1 |
| wild celery |
Cyclospermum leptophyllum |
1 |
| wild parsnip |
Pastinaca sativa |
1 |
| wild radish |
Raphanus raphanistrum |
1 |
| woodland groundsel |
Senecio sylvaticus |
1 |
| woolly distaff thistle |
Carthamus lanatus |
1 |
| yellow starthistle |
Centaurea solstitialis |
1 |
