| Agoseris heterophylla var. cryptopleura | | B |
| Agoseris heterophylla var. heterophylla | | C |
| Agoseris retrorsa | spear-leaved agoseris | A2 |
| Ambrosia chamissonis | beach bur-sage, beach-bur | C |
| Ancistrocarphus filagineus | woolly fishhooks | C |
| Anisocarpus madioides | woodland tarweed, woodland madia | B |
| Arnica discoidea | rayless arnica | B |
| Artemisia dracunculus | tarragon | A2 |
| Artemisia pycnocephala | coastal sagewort | A1x |
| Balsamorhiza deltoidea | deltoid balsamroot | B-PV |
| Balsamorhiza macrolepis | big-scale balsamroot | *A1 |
| Bidens frondosa | sticktight | B |
| Bidens laevis | bur-marigold | A2 |
| Blennosperma nanum var. nanum | blennosperma | C |
| Blepharizonia laxa | big tarplant | B |
| Blepharizonia plumosa | big tarplant | *A2 |
| Brickellia californica | California brickellbush, California brickellia | C |
| Calycadenia multiglandulosa | sticky calycadenia | A2 |
| Centromadia parryi subsp. congdonii | Congdon's tarplant | *A2 |
| Chaenactis glabriuscula var. glabriuscula | yellow pincushion | A1 |
| Chaenactis glabriuscula var. heterocarpha | inner coast range pincushion, yellow pincushion | A1 |
| Chaenactis glabriuscula var. megacephala | yellow pincushion | A1 |
| Cirsium andrewsii | Franciscan thistle | *A1 |
| Cirsium brevistylum | indian thistle | B |
| Cirsium cymosum var. cymosum | peregrine thistle | B-PV |
| Cirsium douglasii var. douglasii | swamp thistle | A1 |
| Cirsium fontinale var. campylon | Mount Hamilton fountain thistle | *A1 |
| Cirsium occidentale var. californicum | California thistle | A2 |
| Cirsium occidentale var. coulteri | COULTER'S THISTLE | A1x |
| Cirsium occidentale var. occidentale | COBWEBBY THISTLE | A1x |
| Cirsium quercetorum | brownie thistle | A2 |
| Cirsium remotifolium var. odontolepis | remote-leaved thistle | A1 |
| Corethrogyne filaginifolia | California aster | C |
| Crocidium multicaule | spring gold | A1 |
| Deinandra bacigalupii | Livermore tarplant | *A1 |
| Deinandra corymbosa | coast tarweed | A2 |
| Deinandra kelloggii | Kellogg's tarweed | A2 |
| Deinandra lobbii | three-rayed tarweed | C |
| Eastwoodia elegans | yellow mock aster | A1? |
| Eclipta prostrata | false daisy | A1 |
| Ericameria arborescens | golden-fleece | B-PV |
| Ericameria nauseosa var. mohavensis | Mojave rabbitbrush, rubber rabbitbrush | A2 |
| Erigeron petrophilus var. petrophilus | rock daisy | B |
| Erigeron philadelphicus var. philadelphicus | fleabane | C |
| Erigeron reductus var. angustatus | California rayless daisy | A1 |
| Eriophyllum jepsonii | Jepson's woolly sunflower | *A2 |
| Eriophyllum lanatum var. achilleoides | woolly sunflower | C |
| Eriophyllum staechadifolium | seaside woolly sunflower, lizard-tail | A2 |
| Gutierrezia californica | California matchweed | B-PV |
| Helenium bigelovii | Bigelow's sneezeweed | A2 |
| Helianthella californica var. californica | California helianthella | A2 |
| Helianthella castanea | Diablo helianthella | *A2 |
| Helianthus californicus | California sunflower | B |
| Helianthus gracilentus | slender sunflower | B |
| Hemizonia congesta subsp. lutescens | hayfield tarweed | B |
| Hesperevax acaulis var. ambusticola | fire evax | A1x |
| Hesperevax caulescens | hogwallow starfish | *A2 |
| Heterotheca oregona var. rudis | Oregon goldenaster | A1 |
| Heterotheca oregona var. scaberrima | Oregon goldenaster | A1 |
| Heterotheca sessiliflora subsp. bolanderi | Bolander goldenaster | C |
| Hieracium albiflorum | white hawkweed | C |
| Holocarpha macradenia | Santa Cruz tarplant | *A1 |
| Holocarpha obconica | San Joaquin tarplant | B |
| Holozonia filipes | whitecrown, holozonia | A2 |
| Isocoma arguta | Carquinez goldenbush | *A1x |
| Laennecia coulteri | Coulter's horseweed, Coulter's conyza | A2 |
| Lasthenia conjugens | Contra Costa goldfields | *A2 |
| Lasthenia ferrisiae | Ferris' goldfields | *A1 |
| Lasthenia fremontii | Fremont's goldfields | A1 |
| Lasthenia glaberrima | smooth goldfields | B |
| Lasthenia glabrata subsp. glabrata | yellow-ray goldfields | A2 |
| Lasthenia maritima | maritime goldfields, seaside goldfields, Farallon weed | A1x |
| Lasthenia microglossa | small-ray goldfields | A2 |
| Lasthenia minor | coastal goldfields, woolly goldfields | A1 |
| Lasthenia platycarpha | alkali goldfields | A1 |
| Layia chrysanthemoides | smooth layia | A2 |
| Layia gaillardioides | woodland layia | A2 |
| Layia glandulosa | white layia | A1x |
| Layia hieracioides | tall layia | B-PV |
| Layia platyglossa | tidy-tips | B-PV |
| Lepidospartum squamatum | California broom-shrub | A1x |
| Leptosyne calliopsidea | leafy-stemmed coreopsis | A1 |
| Leptosyne hamiltonii | Mount Hamilton coreopsis | *A1 |
| Leptosyne stillmanii | Stillman's coreopsis | A1x |
| Lessingia hololeuca | woolly-headed lessingia | *A1x |
| Lessingia nana | dwarf lessingia | A1x |
| Lessingia nemaclada | slender-stemmed lessignia | A2 |
| Lessingia pectinata var. tenuipes | valley lessingia | A2 |
| Lessingia ramulosa | | A1 |
| Lessingia tenuis | spring lessingia | *A2 |
| Madia anomala | plump-seeded madia | A1x |
| Madia exigua | | C |
| Madia radiata | showy golden madia, showy madia | *A1x |
| Malacothrix californica | California malacothrix | A1x |
| Malacothrix clevelandii | Cleveland's malacothrix | A2 |
| Malacothrix coulteri | snake's-head | A1 |
| Malacothrix floccifera | woolly malacothrix | C |
| Matricaria occidentalis | valley mayweed, valley pineapple weed | A1x |
| Micropus amphibolus | Mount Diablo cottonseed, Mt. Diablo cottonweed | *A1x |
| Micropus californicus var. subvestitus | slender cottonweed | A2 |
| Microseris acuminata | Sierra Foothills microseris | A1 |
| Microseris bigelovii | coast microseris | A1x |
| Microseris campestris | San Joaquin microseris | A1 |
| Microseris douglasii subsp. tenella | silver puffs | A2 |
| Microseris elegans | elegant microseris | A1 |
| Microseris sylvatica | sylvan microseris | *A2 |
| Monolopia gracilens | woodland woollythreads, woodland monolopia | *A2 |
| Monolopia lanceolata | common hillside daisy, common monolopia | A1 |
| Monolopia major | cupped monolopia | B |
| Packera breweri | Brewer's ragwort, Brewer's butterweed | B-PV |
| Pentachaeta alsinoides | tiny pentachaeta | B-PV |
| Pentachaeta exilis subsp. exilis | meager pentachaeta | A1 |
| Petasites frigidus var. palmatus | western sweet coltsfoot, coltsfoot | A1 |
| Pluchea odorata var. odorata | saltmarsh fleabane | B-PV |
| Pseudognaphalium beneolens | fragrant everlasting | C |
| Pseudognaphalium biolettii | Bioletti's cudweed | A1 |
| Pseudognaphalium microcephalum | white everlasting | A1 |
| Psilocarphus brevissimus var. brevissimus | dwarf woollyheads, dwarf woolly-marbles | B |
| Psilocarphus brevissimus var. multiflorus | delta woolly-marbles | *A1? |
| Psilocarphus chilensis | round woolly marbles, round woolly-marbles | A1 |
| Psilocarphus oregonus | Oregon woollyheads, Oregon woolly-marbles | A2 |
| Pyrrocoma racemosa var. racemosa | racemose pyrrocoma | A1 |
| Rigiopappus leptocladus | rigiopappus | C |
| Senecio aphanactis | chaparral ragwort, rayless ragwort | *A1x |
| Senecio aronicoides | rayless ragwort, California butterweed | B-PV |
| Senecio flaccidus var. douglasii | Douglas' threadleaf ragwort, shrubby butterweed | A2 |
| Senecio hydrophilus | water ragwort, alkali-marsh ragwort, alkali-marsh butterweed | A2 |
| Stebbinsoseris heterocarpa | grassland silverpuffs, derived microseris | C |
| Stephanomeria elata | stephanomeria | A1 |
| Stylocline gnaphaloides | everlasting neststraw, nest-straw | B |
| Symphyotrichum frondosum | short-rayed alkali aster | A1x |
| Symphyotrichum lanceolatum var. hesperium | marsh aster | A2 |
| Symphyotrichum lentum | Suisun marsh aster | *A2 |
| Symphyotrichum subulatum var. parviflorum | slim aster | B |
| Wyethia glabra | mule ears | C |
| Heterotheca sessiliflora var. bolanderioides | golden aster | A1x |
| Agoseris heterophylla var. unknown | annual agoseris | B? |