Partial Flora of the Eastern San Gabriel Mountains
by Dick Swinney
Even though the San Gabriel Mountains are immediately next to one of the most populous areas in California, no one has yet produced a flora for that range. Hence in 1989 I began a long-term project to document its flora.
Vouchers were collected every year from 1989 to 2001, typically from field days during the three month summer vacation from my regular job as a schoolteacher. No vouchers were collected in 2003-2004, when I turned my attention to documenting the insects of Glendora. I plan to resume this project in Spring 2005, and estimate that I have another two years of collection before I will have covered the range fairly thoroughly.
Because a number of people are interested in the flora, I present here a preliminary checklist from those vouchers processed so far. This is a partial list, and will be augmented in the course of further work. In particular, the following list of taxa has been compiled from only ~70% of the voucher specimens collected, the ones vouchered through 1997. Vouchers from 1998 - 2001 have not yet been processed by UCR, and are not included here.
This list will be useful in alerting people to what I have found and documented. This list cannot be used to infer what I did not observe since ~30% of the collected vouchers have yet to be processed, and there are areas of the San Gabriel Mountains that I have not yet covered. For example, laurel sumac, Malosma laurina, does not yet appear on this list, although it will when the list is complete.
The plant species for my Plants of the Glendora Foothills are not included here in this partial checklist; that checklist will soon be posted as a separate work.
Two copies of each voucher number have been deposited in the UCR Herbarium. All labels are made at UCR. UCR forwards one copy of each label to the RSA Herbarium and one to myself. If three specimens of each voucher number can be collected, the third copy is eventually sent to RSA.
Andy Sanders reviewed most of the vouchers, with help primarily from G.K. Helmkamp. Other reviewers of more than one voucher include Mark Hershkovitz, Mark S. Brunell, Mitch Provance, S.D. White, and Steve Boyd. Single vouchers were occasionally sent to experts for review; I thank James C. Hickman, James L. Reveal, Gillian Schultz, J.L. Strother, and T.B. Salvato for their help.
The checklist presented here was compiled by Tom Chester from the UCR digital database. This compilation was made possible by the foresight of Andy Sanders to digitize the UCR herbarium collection. I thank both of them for their assistance in producing this list.
Geographic Coverage
My collection area was delineated:
- on the east by Cajon Pass; specifically, both side of Cajon Wash.
- on the north by the base of the mountain slope, extending just a ways into that slope. Baldy Mesa was included; the ridge through Phelan Peak was one boundary.
- on the west, I include the upper portion of Little Rock Creek; Twin Peaks; and Fish Canyon in Duarte.
- on the south, by the base of the mountain slope, avoiding urban areas but including areas such as the South Hills in Glendora.
To give an idea of the areas covered, the following plot shows the locations of the 58 vouchers with geographic coordinates. This is only a small fraction of the 1,675 vouchers used as the basis of this checklist.
Summary of the Checklist
The checklist was made by searching the UCR database for all vouchers in Los Angeles and San Bernardino Counties collected by myself. Of those 1,890 vouchers, 16 were not in the San Gabriel Mountains, so were not considered further. Of the remaining vouchers, 41 vouchers, from 25 genera, could only be identified to the genus level. They were not considered further, except to note that two genera were among them for which there were no vouchers identified to species. Those two genera were Aster and Lemna.
Of the remaining vouchers, 158, from 53 species, were identified only to the species level, and also had vouchers further identified to the subspecies or variety level. These vouchers were not included in the table below.
This process left 1,675 vouchers, from 758 taxa.
The following table summarizes the above information:
| Category | # Vouchers | # Taxa |
|---|---|---|
| Not in SnGb | 16 | |
| Genus only | 41 | 25 |
| Species only, with vouchers identified to ssp or var | 158 | 53 |
| Fully-identified taxa | 1,675 | 758 |
| Total Swinney L.A. / S.B. vouchers | 1,890 | 760 |
Preliminary Checklist of Vascular Flora of the Eastern San Gabriel Mountains
The Latin Names in this list conform to those given in the Jepson Manual. For a small number of taxa, Tom Chester converted the names used at UCR to those used in the Jepson Manual. See the list of changes.
The common names here were taken from the Chester and Strong database in order to place this online as rapidly as possible.
Version for printing, compressed, without lines and other text on this page (24 pages)
| # | Latin Name | *(Introduced), Common Name | # of Vouchers |
|---|---|---|---|
Ferns and Fern Allies | |||
| Blechnaceae | Fern Family | ||
| 1 | Woodwardia fimbriata | giant chain fern | 3 |
| Dennstaedtiaceae | Bracken Family | ||
| 2 | Pteridium aquilinum var. pubescens | bracken | 2 |
| Dryopteridaceae | Woodfern Family | ||
| 3 | Cystopteris fragilis | brittle bladder fern | 4 |
| 4 | Dryopteris arguta | California wood fern | 6 |
| 5 | Polystichum imbricans ssp. curtum | cliff sword fern | 1 |
| 6 | Polystichum imbricans ssp. imbricans | rock sword fern | 1 |
| Equisetaceae | Horsetail Family | ||
| 7 | Equisetum arvense | field horsetail | 1 |
| 8 | Equisetum hyemale ssp. affine | horsetail | 2 |
| 9 | Equisetum laevigatum | smooth scouring rush | 2 |
| Polypodiaceae | Polypody Family | ||
| 10 | Polypodium californicum | California polypody | 2 |
| Pteridaceae | Fern Family | ||
| 11 | Adiantum capillus-veneris | Venus-hair fern | 3 |
| 12 | Adiantum jordanii | California maidenhair fern | 1 |
| 13 | Cheilanthes covillei | beady lipfern | 2 |
| 14 | Pellaea andromedifolia | coffee fern | 1 |
| 15 | Pellaea mucronata | bird's-foot fern | 5 |
| 16 | Pentagramma triangularis ssp. triangularis | goldback fern | 2 |
| Selaginellaceae | Spike Moss Family | ||
| 17 | Selaginella bigelovii | Bigelow's spike-moss | 2 |
Conifers | |||
| Cupressaceae | Cypress Family | ||
| 18 | Calocedrus decurrens | incense-cedar | 2 |
| 19 | Juniperus californica | California juniper | 3 |
| 20 | Juniperus occidentalis | western juniper | 3 |
| Ephedraceae | Ephredra Family | ||
| 21 | Ephedra nevadensis | Nevada ephedra | 1 |
| 22 | Ephedra viridis | green ephedra | 2 |
| Pinaceae | Pine Family | ||
| 23 | Abies concolor | white fir | 2 |
| 24 | Pinus contorta ssp. murrayana | lodgepole pine | 4 |
| 25 | Pinus jeffreyi | Jeffrey pine | 2 |
| 26 | Pinus lambertiana | sugar pine | 2 |
| 27 | Pinus monophylla | pinyon pine | 2 |
| 28 | Pinus ponderosa | ponderosa pine | 2 |
| Taxodiaceae | Bald Cypress Family | ||
| 29 | Sequoiadendron giganteum | giant sequoia | 1 |
Dicots | |||
| Aceraceae | Maple Family | ||
| 30 | Acer macrophyllum | bigleaf maple | 1 |
| Amaranthaceae | Amaranth Family | ||
| 31 | Amaranthus albus | *tumble pigweed | 1 |
| 32 | Amaranthus blitoides | mat amaranth | 1 |
| 33 | Amaranthus retroflexus | *red-rooted amaranth | 1 |
| Anacardiaceae | Sumac Family | ||
| 34 | Rhus ovata | sugar bush | 2 |
| 35 | Rhus trilobata | basketbush | 5 |
| 36 | Toxicodendron diversilobum | poison oak | 2 |
| Apiaceae | Carrot Family | ||
| 37 | Angelica tomentosa | woolly angelica | 2 |
| 38 | Anthriscus caucalis | *bur chervil | 2 |
| 39 | Apiastrum angustifolium | wild celery | 1 |
| 40 | Berula erecta | cutleaf water-parsnip | 1 |
| 41 | Bowlesia incana | hoary bowlesia | 1 |
| 42 | Conium maculatum | *poison hemlock | 1 |
| 43 | Daucus pusillus | rattlesnake weed | 1 |
| 44 | Foeniculum vulgare | *fennel | 2 |
| 45 | Hydrocotyle umbellata | marsh-pennywort | 1 |
| 46 | Lomatium dasycarpum | woolly-fruited lomatium | 1 |
| 47 | Lomatium dissectum | fern-leaved lomatium | 1 |
| 48 | Lomatium lucidum | shiny lomatium | 4 |
| 49 | Lomatium nevadense | Nevada lomatium | 3 |
| 50 | Oreonana vestita | woolly mountain-parsley | 4 |
| 51 | Osmorhiza brachypoda | California sweet-cicely | 2 |
| 52 | Osmorhiza chilensis | mountain sweet-cicely | 3 |
| 53 | Sanicula bipinnatifida | purple sanicle | 1 |
| 54 | Sanicula crassicaulis | Pacific sanicle | 1 |
| 55 | Sanicula tuberosa | tuberous sanicle | 1 |
| 56 | Tauschia arguta | southern tauschia | 3 |
| 57 | Tauschia parishii | Parish's tauschia | 4 |
| Apocynaceae | Dogbane Family | ||
| 58 | Apocynum cannabinum | Indian hemp | 2 |
| 59 | Cycladenia humilis var. venusta | showy cycladenia | 1 |
| 60 | Nerium oleander | *oleander | 1 |
| 61 | Vinca major | *greater periwinkle | 1 |
| Araliaceae | Ginseng Family | ||
| 62 | Aralia californica | elk's clover | 4 |
| 63 | Hedera helix | *English ivy | 2 |
| Asclepiadaceae | Milkweed Family | ||
| 64 | Asclepias californica | California milkweed | 1 |
| 65 | Asclepias eriocarpa | Indian milkweed | 2 |
| 66 | Asclepias fascicularis | narrow-leaf milkweed | 1 |
| 67 | Asclepias vestita | woolly milkweed | 1 |
| 68 | Sarcostemma cynanchoides ssp. hartwegii | climbing milkweed | 1 |
| Asteraceae | Sunflower Family | ||
| 69 | Acamptopappus sphaerocephalus | goldenhead | 1 |
| 70 | Achillea millefolium | yarrow | 3 |
| 71 | Acourtia microcephala | acourtia | 3 |
| 72 | Ageratina adenophora | *eupatory | 1 |
| 73 | Agoseris grandiflora | grand mountain dandelion | 5 |
| 74 | Agoseris retrorsa | spear-leaved mountain dandelion | 5 |
| 75 | Ambrosia acanthicarpa | bur-ragweed | 1 |
| 76 | Anisocoma acaulis | scale-bud | 3 |
| 77 | Antennaria dimorpha | low pussytoes | 1 |
| 78 | Anthemis cotula | *dog-fennel | 2 |
| 79 | Artemisia douglasiana | mugwort | 3 |
| 80 | Artemisia dracunculus | wild tarragon | 1 |
| 81 | Artemisia ludoviciana ssp. incompta | mountain mugwort | 3 |
| 82 | Artemisia tridentata | big sagebrush | 2 |
| 83 | Baccharis emoryi | Emory's baccharis | 1 |
| 84 | Baccharis salicifolia | mule fat | 1 |
| 85 | Bidens pilosa var. pilosa | *common beggar-ticks | 2 |
| 86 | Brickellia californica | California brickellbush | 4 |
| 87 | Brickellia nevinii | Nevin's brickellia | 1 |
| 88 | Calendula officinalis | *pot-marigold | 1 |
| 89 | Carduus pycnocephalus | *Italian thistle | 1 |
| 90 | Centaurea cyanus | *bachelor's button | 1 |
| 91 | Centaurea maculosa | *spotted knapweed | 1 |
| 92 | Chaenactis glabriuscula | yellow pincushion | 5 |
| 93 | Chaenactis santolinoides | santolina pincushion | 4 |
| 94 | Chaenactis stevioides | desert pincushion | 1 |
| 95 | Chaenactis xantiana | Xantus' chaenactis | 1 |
| 96 | Chrysothamnus nauseosus | common rabbitbrush | 6 |
| 97 | Cirsium occidentale var. californicum | California thistle | 3 |
| 98 | Cirsium vulgare | *bull thistle | 2 |
| 99 | Conyza bonariensis | *little horseweed | 1 |
| 100 | Conyza canadensis | horseweed | 1 |
| 101 | Coreopsis bigelovii | Bigelow's coreopsis | 3 |
| 102 | Coreopsis tinctoria | *calliopsis | 1 |
| 103 | Cotula australis | *Australian brass-buttons | 1 |
| 104 | Crepis acuminata | long-leaved hawksbeard | 2 |
| 105 | Crepis nana | dwarf hawksbeard | 1 |
| 106 | Cynara cardunculus | *artichoke thistle | 1 |
| 107 | Dimorphotheca sinuata | *African daisy | 1 |
| 108 | Eclipta prostrata | false daisy | 1 |
| 109 | Encelia actoni | Acton's encelia | 2 |
| 110 | Encelia farinosa | brittlebush | 1 |
| 111 | Ericameria cooperi var. cooperi | Cooper's goldenbush | 2 |
| 112 | Ericameria cooperi var. cooperi X E. linearifolia | goldenbush hybrid | 1 |
| 113 | Ericameria cuneata var. cuneata | rock goldenbush | 1 |
| 114 | Ericameria linearifolia | narrowleaf goldenbush | 2 |
| 115 | Ericameria parishii var. parishii | Parish's goldenbush | 3 |
| 116 | Ericameria pinifolia | pine goldenbush | 3 |
| 117 | Erigeron breweri var. bisanctus | pious daisy | 2 |
| 118 | Erigeron foliosus var. foliosus | leafy daisy | 2 |
| 119 | Eriophyllum confertiflorum | golden yarrow | 10 |
| 120 | Eriophyllum pringlei | Pringle's woolly sunflower | 1 |
| 121 | Eriophyllum wallacei | Wallace's woolly daisy | 2 |
| 122 | Euthamia occidentalis | western goldenrod | 3 |
| 123 | Filago californica | California filago | 2 |
| 124 | Glyptopleura marginata | carved-seed | 1 |
| 125 | Gnaphalium californicum | California everlasting | 4 |
| 126 | Gnaphalium canescens ssp. beneolens | fragrant everlasting | 1 |
| 127 | Gnaphalium canescens ssp. microcephalum | white everlasting | 2 |
| 128 | Gnaphalium luteo-album | *common cudweed | 2 |
| 129 | Gnaphalium palustre | western marsh cudweed | 4 |
| 130 | Gnaphalium stramineum | cotton-batting plant | 4 |
| 131 | Gutierrezia californica | California matchweed | 1 |
| 132 | Gutierrezia microcephala | sticky snakeweed | 1 |
| 133 | Hazardia squarrosa var. grindelioides | saw-toothed goldenbush | 1 |
| 134 | Helenium bigelovii | Bigelow's sneezeweed | 4 |
| 135 | Helenium puberulum | sneezeweed | 1 |
| 136 | Helianthus annuus | annual sunflower | 1 |
| 137 | Helianthus gracilentus | slender sunflower | 2 |
| 138 | Heterotheca sessiliflora ssp. fastigiata | erect goldenaster | 1 |
| 139 | Hieracium albiflorum | white hawkweed | 2 |
| 140 | Hieracium argutum | southern hawkweed | 2 |
| 141 | Hieracium horridum | prickly hawkweed | 1 |
| 142 | Hulsea heterochroma | red-rayed hulsea | 5 |
| 143 | Hymenoclea salsola | burrobrush | 1 |
| 144 | Hypochaeris glabra | *smooth cat's ear | 1 |
| 145 | Iva axillaris ssp. robustior | poverty weed | 1 |
| 146 | Lasthenia californica | goldfields | 1 |
| 147 | Lasthenia coronaria | southern goldfields | 1 |
| 148 | Layia glandulosa | white tidy-tips | 4 |
| 149 | Lepidospartum latisquamum | Nevada broomsage | 2 |
| 150 | Lepidospartum squamatum | scale-broom | 2 |
| 151 | Lessingia filaginifolia | California-aster | 1 |
| 152 | Lessingia glandulifera var. glandulifera | sticky lessingia | 1 |
| 153 | Madia elegans ssp. densifolia | leafy common madia | 1 |
| 154 | Madia gracilis | slender madia | 2 |
| 155 | Malacothrix glabrata | desert dandelion | 3 |
| 156 | Picris echioides | *bristly ox-tongue | 1 |
| 157 | Rafinesquia californica | California chicory | 2 |
| 158 | Rudbeckia hirta var. pulcherrima | *black-eyed susan | 1 |
| 159 | Senecio astephanus | San Gabriel ragwort | 1 |
| 160 | Senecio flaccidus var. douglasii | bush senecio | 2 |
| 161 | Senecio ionophyllus | Tehachapi ragwort | 3 |
| 162 | Senecio mikanioides | *German ivy | 2 |
| 163 | Senecio vulgaris | *common groundsel | 2 |
| 164 | Solidago californica | goldenrod | 6 |
| 165 | Solidago confinis | southern goldenrod | 3 |
| 166 | Sonchus asper ssp. asper | *prickly sow thistle | 3 |
| 167 | Stephanomeria cichoriacea | chicory-leaved stephanomeria | 3 |
| 168 | Stephanomeria diegensis | San Diego wreathplant | 1 |
| 169 | Stephanomeria exigua ssp. carotifera | white-plume stephanomeria | 1 |
| 170 | Stephanomeria pauciflora | wire-lettuce | 2 |
| 171 | Stephanomeria virgata ssp. pleurocarpa | twiggy wreath plant | 1 |
| 172 | Tanacetum parthenium | *feverfew | 1 |
| 173 | Tetradymia canescens | spineless horsebrush | 2 |
| 174 | Tetradymia comosa | cotton-thorn | 5 |
| 175 | Tragopogon dubius | *yellow salsify | 1 |
| 176 | Uropappus lindleyi | silver puffs | 2 |
| 177 | Venegasia carpesioides | canyon sunflower | 1 |
| 178 | Xanthium strumarium | cocklebur | 1 |
| Berberidaceae | Barberry Family | ||
| 179 | Berberis aquifolium var. dictyota | California barberry | 6 |
| Betulaceae | Birch Family | ||
| 180 | Alnus rhombifolia | white alder | 4 |
| Boraginaceae | Borage Family | ||
| 181 | Amsinckia menziesii var. intermedia | common fiddleneck | 1 |
| 182 | Amsinckia tessellata | devil's lettuce | 1 |
| 183 | Cryptantha affinis | common cryptantha | 2 |
| 184 | Cryptantha echinella | prickly cryptantha | 2 |
| 185 | Cryptantha intermedia | popcorn flower | 2 |
| 186 | Cryptantha microstachys | Tejon cryptantha | 2 |
| 187 | Cryptantha mohavensis | Mojave cryptantha | 1 |
| 188 | Cryptantha muricata | prickly cryptantha | 16 |
| 189 | Cryptantha oxygona | sharp-nut cryptantha | 1 |
| 190 | Cryptantha pterocarya | wing-nut cryptantha | 1 |
| 191 | Cryptantha racemosa | bushy cryptantha | 1 |
| 192 | Cryptantha similis | cushion cryptantha | 1 |
| 193 | Cryptantha simulans | pine cryptantha | 1 |
| 194 | Heliotropium curassavicum | seaside heliotrope | 2 |
| 195 | Pectocarya linearis ssp. ferocula | slender combseed | 1 |
| 196 | Pectocarya penicillata | combseed | 1 |
| 197 | Pectocarya setosa | moth combseed | 1 |
| 198 | Plagiobothrys canescens | grey popcorn flower | 2 |
| Brassicaceae | Mustard Family | ||
| 199 | Arabis glabra | tower mustard | 4 |
| 200 | Arabis hirsuta var. pycnocarpa | hairy-fruit rock-cress | 1 |
| 201 | Arabis platysperma | broad-seeded rock-cress | 2 |
| 202 | Arabis repanda | repand rock-cress | 3 |
| 203 | Arabis sparsiflora | elegant rock-cress | 6 |
| 204 | Brassica fruticulosa | *Mediterranean cabbage | 2 |
| 205 | Caulanthus amplexicaulis var. amplexicaulis | clasping-leaved caulanthus | 1 |
| 206 | Caulanthus major | slender wild cabbage | 2 |
| 207 | Descurainia pinnata | western tansy-mustard | 1 |
| 208 | Draba corrugata | Southern California draba | 2 |
| 209 | Erysimum capitatum | western wallflower | 4 |
| 210 | Hirschfeldia incana | *shortpod mustard | 2 |
| 211 | Lobularia maritima | *sweet alyssum | 2 |
| 212 | Rorippa nasturtium-aquaticum | water cress | 1 |
| 213 | Sisymbrium altissimum | *tumble-mustard | 5 |
| 214 | Sisymbrium irio | *London rocket | 2 |
| 215 | Sisymbrium orientale | *Oriental mustard | 1 |
| 216 | Stanleya pinnata | prince's plume | 2 |
| 217 | Streptanthus bernardinus | Laguna Mtns. jewel-flower | 1 |
| 218 | Thysanocarpus curvipes | fringe-pod | 2 |
| Cactaceae | Cactus Family | ||
| 219 | Opuntia acanthocarpa var. coloradensis | buckhorn cholla | 1 |
| 220 | Opuntia basilaris var. brachyclada | short-joint beavertail | 1 |
| 221 | Opuntia littoralis | coast prickly-pear | 1 |
| 222 | Opuntia parryi | snake cholla | 1 |
| Campanulaceae | Bellflower Family | ||
| 223 | Githopsis diffusa ssp. diffusa | San Gabriel bluecup | 1 |
| 224 | Lobelia dunnii var. serrata | Dunn's lobelia | 3 |
| 225 | Nemacladus longiflorus var. breviflorus | thread plant | 1 |
| 226 | Nemacladus sigmoideus | small-flowered nemacladus | 1 |
| Cannabaceae | Hemp Family | ||
| 227 | Cannabis sativa | *marijuana | 1 |
| Capparaceae | Caper Family | ||
| 228 | Isomeris arborea | bladderpod | 1 |
| Caprifoliaceae | Honeysuckle Family | ||
| 229 | Lonicera interrupta | chaparral honeysuckle | 2 |
| 230 | Lonicera japonica | *Japanese honeysuckle | 1 |
| 231 | Lonicera subspicata var. denudata | southern honeysuckle | 2 |
| 232 | Sambucus mexicana | blue elderberry | 9 |
| 233 | Symphoricarpos mollis | creeping snowberry | 1 |
| Caryophyllaceae | Pink Family | ||
| 234 | Arenaria macradenia | desert sandwort | 2 |
| 235 | Minuartia douglasii | Douglas' sandwort | 1 |
| 236 | Silene antirrhina | snapdragon campion | 1 |
| 237 | Silene gallica | *windmill pink | 1 |
| 238 | Silene laciniata ssp. major | southern Indian pink | 3 |
| 239 | Silene lemmonii | Lemmon's catchfly | 1 |
| 240 | Silene menziesii | Menzies' campion | 1 |
| 241 | Silene parishii | Parish's campion | 2 |
| 242 | Silene verecunda ssp. platyota | white catch-fly | 8 |
| 243 | Stellaria media | *common chickweed | 1 |
| Chenopodiaceae | Goosefoot Family | ||
| 244 | Atriplex canescens | fourwing saltbush | 3 |
| 245 | Atriplex lentiformis | big saltbush | 1 |
| 246 | Atriplex rosea | *tumbling oracle | 1 |
| 247 | Atriplex semibaccata | *creeping Australian saltbush | 1 |
| 248 | Chenopodium ambrosioides | *Mexican tea | 2 |
| 249 | Chenopodium berlandieri | pit-seed goosefoot | 2 |
| 250 | Chenopodium botrys | *Jerusalem oak | 1 |
| 251 | Chenopodium californicum | California goosefoot | 1 |
| 252 | Chenopodium fremontii | Fremont's goosefoot | 3 |
| 253 | Chenopodium pratericola | meadow goosefoot | 1 |
| 254 | Salsola tragus | *Russian thistle | 1 |
| Cistaceae | Rock-Rose Family | ||
| 255 | Helianthemum scoparium | rush-rose | 3 |
| Convolvulaceae | Morning Glory Family | ||
| 256 | Calystegia macrostegia | southern California morning-glory | 4 |
| 257 | Calystegia occidentalis ssp. fulcrata | western morning-glory | 2 |
| 258 | Convolvulus arvensis | *field bindweed | 1 |
| Cornaceae | Dogwood Family | ||
| 259 | Cornus sericea | American dogwood | 1 |
| 260 | Cornus sericea ssp. occidentalis | western dogwood | 1 |
| Crassulaceae | Stonecrop Family | ||
| 261 | Crassula connata | pygmy-weed | 1 |
| 262 | Dudleya cymosa ssp. crebrifolia | San Gabriel River dudleya | 1 |
| 263 | Dudleya cymosa ssp. pumila | canyon dudleya | 1 |
| 264 | Dudleya lanceolata | lanceleaf dudleya | 4 |
| 265 | Dudleya multicaulis | many-stemmed dudleya | 1 |
| 266 | Dudleya pulverulenta | chalk lettuce | 1 |
| 267 | Sedum spathulifolium | yellow stonecrop | 4 |
| Cucurbitaceae | Gourd Family | ||
| 268 | Cucurbita foetidissima | stinking gourd | 1 |
| 269 | Marah macrocarpus var. macrocarpus | wild-cucumber | 3 |
| Cuscutaceae | Dodder Family | ||
| 270 | Cuscuta californica var. californica | California dodder | 6 |
| Datiscaceae | Datisca Family | ||
| 271 | Datisca glomerata | Durango root | 4 |
| Ericaceae | Heath Family | ||
| 272 | Arctostaphylos gabrielensis | San Gabriel manzanita | 1 |
| 273 | Arctostaphylos glandulosa ssp. glaucomollis | San Gabriel Mts. manzanita | 1 |
| 274 | Arctostaphylos glauca | bigberry manzanita | 5 |
| 275 | Arctostaphylos parryana | Parry manzanita | 3 |
| 276 | Arctostaphylos patula | green-leaf manzanita | 4 |
| 277 | Arctostaphylos pungens | Mexican manzanita | 1 |
| 278 | Chimaphila menziesii | little prince's pine | 1 |
| 279 | Pyrola asarifolia ssp. asarifolia | bog wintergreen | 1 |
| 280 | Sarcodes sanguinea | snow-plant | 3 |
| Euphorbiaceae | Spurge Family | ||
| 281 | Chamaesyce albomarginata | rattlesnake weed | 1 |
| 282 | Chamaesyce serpens | creeping spurge | 1 |
| 283 | Chamaesyce serpyllifolia ssp. serpyllifolia | thyme-leafed spurge | 3 |
| 284 | Croton californicus | California croton | 2 |
| 285 | Eremocarpus setigerus | dove weed | 3 |
| 286 | Euphorbia lathyris | *gopher plant | 2 |
| 287 | Euphorbia palmeri | woodland spurge | 1 |
| Fabaceae | Pea Family | ||
| 288 | Amorpha californica | California false-indigo | 1 |
| 289 | Astragalus bicristatus | crested milk-vetch | 2 |
| 290 | Astragalus douglasii | Jacumba milk-vetch | 3 |
| 291 | Astragalus lentiginosus | freckled milk-vetch | 1 |
| 292 | Astragalus purshii var. lectulus | Pursh's milk-vetch | 1 |
| 293 | Glycyrrhiza lepidota | wild licorice | 2 |
| 294 | Hoita macrostachya | leather root | 2 |
| 295 | Lathyrus latifolius | *perennial sweet pea | 1 |
| 296 | Lathyrus vestitus | common Pacific pea | 2 |
| 297 | Lotus corniculatus | *bird's-foot lotus | 1 |
| 298 | Lotus crassifolius | broad-leaved lotus | 4 |
| 299 | Lotus grandiflorus | chaparral lotus | 4 |
| 300 | Lotus heermannii | silky lotus | 3 |
| 301 | Lotus nevadensis var. davidsonii | Davidson's lotus | 2 |
| 302 | Lotus oblongifolius | streambank lotus | 3 |
| 303 | Lotus procumbens | silky California broom | 3 |
| 304 | Lotus purshianus var. purshianus | Spanish clover | 2 |
| 305 | Lotus salsuginosus var. salsuginosus | coastal lotus | 1 |
| 306 | Lotus strigosus | strigose lotus | 4 |
| 307 | Lupinus albifrons var. albifrons | silver bush lupine | 1 |
| 308 | Lupinus andersonii | Anderson's lupine | 3 |
| 309 | Lupinus bicolor | dwarf lupine | 5 |
| 310 | Lupinus concinnus | bajada lupine | 3 |
| 311 | Lupinus elatus | silky lupine | 5 |
| 312 | Lupinus excubitus | grape-soda lupine | 2 |
| 313 | Lupinus formosus var. formosus | western lupine | 3 |
| 314 | Lupinus hirsutissimus | stinging lupine | 3 |
| 315 | Lupinus hyacinthinus | San Jacinto lupine | 5 |
| 316 | Lupinus latifolius | broad-leaf lupine | 2 |
| 317 | Lupinus sparsiflorus | Coulter's lupine | 2 |
| 318 | Lupinus truncatus | collar lupine | 1 |
| 319 | Medicago polymorpha | *California burclover | 1 |
| 320 | Melilotus albus | *white sweetclover | 1 |
| 321 | Robinia pseudoacacia | *black locust | 1 |
| 322 | Spartium junceum | *Spanish broom | 1 |
| 323 | Trifolium hirtum | *rose clover | 1 |
| 324 | Trifolium hybridum | *alsike clover | 1 |
| 325 | Trifolium microcephalum | small-head field clover | 2 |
| 326 | Trifolium monanthum var. grantianum | few-flowered clover | 1 |
| 327 | Trifolium willdenovii | tomcat clover | 1 |
| 328 | Trifolium wormskioldii | cows clover | 1 |
| 329 | Vicia americana var. americana | American vetch | 1 |
| 330 | Vicia villosa | *purple vetch | 2 |
| Fagaceae | Oak Family | ||
| 331 | Chrysolepis sempervirens | bush chinquapin | 5 |
| 332 | Quercus agrifolia | coast live oak | 1 |
| 333 | Quercus chrysolepis | canyon live oak | 4 |
| 334 | Quercus durata var. gabrielensis | San Gabriel Mtns. leather oak | 5 |
| 335 | Quercus durata var. gabrielensis X Q. engelmannii | Engelmann - leather oak hybrid | 1 |
| 336 | Quercus engelmannii | Engelmann oak | 1 |
| 337 | Quercus john-tuckeri | Tucker's oak | 2 |
| 338 | Quercus kelloggii | California black oak | 1 |
| 339 | Quercus wislizeni var. frutescens | interior live oak | 2 |
| Garryaceae | Silk-Tassel Family | ||
| 340 | Garrya fremontii | Fremont silk tassel | 1 |
| 341 | Garrya veatchii | canyon silktassel | 5 |
| Gentianaceae | Gentian Family | ||
| 342 | Centaurium venustum | canchalagua | 3 |
| Geraniaceae | Geranium Family | ||
| 343 | Erodium botrys | *long-beaked filaree | 2 |
| 344 | Erodium brachycarpum | *short-fruited filaree | 3 |
| 345 | Erodium cicutarium | *redstem filaree | 4 |
| 346 | Erodium moschatum | *white-stemmed filaree | 1 |
| Grossulariaceae | Gooseberry Family | ||
| 347 | Ribes amarum | bitter gooseberry | 2 |
| 348 | Ribes aureum | golden currant | 3 |
| 349 | Ribes cereum var. cereum | wax currant | 1 |
| 350 | Ribes indecorum X R. malvaceum | hybrid currant | 1 |
| 351 | Ribes malvaceum var. viridifolium | chaparral currant | 1 |
| 352 | Ribes montigenum | mountain gooseberry | 1 |
| 353 | Ribes nevadense | mountain pink currant | 1 |
| 354 | Ribes roezlii var. roezlii | Sierra gooseberry | 1 |
| Haloragaceae | Water-Milfoil Family | ||
| 355 | Myriophyllum sibiricum | Siberian milfoil | 1 |
| Hydrophyllaceae | Phacelia Family | ||
| 356 | Emmenanthe penduliflora | whispering bells | 1 |
| 357 | Eriodictyon trichocalyx | smoothleaf yerba santa | 7 |
| 358 | Eucrypta chrysanthemifolia var. chrysanthemifolia | eucrypta | 1 |
| 359 | Nemophila menziesii var. integrifolia | baby blue eyes | 1 |
| 360 | Nemophila menziesii var. menziesii | baby blue eyes | 2 |
| 361 | Phacelia affinis | limestone phacelia | 1 |
| 362 | Phacelia austromontana | southern Sierra phacelia | 1 |
| 363 | Phacelia cicutaria | caterpillar phacelia | 4 |
| 364 | Phacelia curvipes | curve-stem phacelia | 11 |
| 365 | Phacelia distans | common phacelia | 2 |
| 366 | Phacelia fremontii | Fremont's phacelia | 5 |
| 367 | Phacelia grandiflora | giant-flowered phacelia | 1 |
| 368 | Phacelia hastata | mountain phacelia | 1 |
| 369 | Phacelia imbricata | imbricate phacelia | 4 |
| 370 | Phacelia longipes | long-stalk phacelia | 2 |
| 371 | Phacelia minor | wild canterbury bells | 2 |
| 372 | Phacelia mohavensis | Mojave phacelia | 3 |
| 373 | Phacelia ramosissima | branching phacelia | 7 |
| 374 | Pholistoma auritum var. auritum | fiesta flower | 1 |
| 375 | Turricula parryi | poodle-dog bush | 4 |
| Lamiaceae | Mint Family | ||
| 376 | Lamium amplexicaule | *henbit | 1 |
| 377 | Lepechinia fragrans | fragrant pitcher sage | 2 |
| 378 | Marrubium vulgare | *horehound | 1 |
| 379 | Monardella australis | southern mountain-monardella | 1 |
| 380 | Monardella cinerea | gray monardella | 5 |
| 381 | Monardella hypoleuca | white-leaf monardella | 2 |
| 382 | Monardella lanceolata | mustang mint | 4 |
| 383 | Monardella viridis ssp. saxicola | rock monardella | 1 |
| 384 | Nepeta cataria | *catnip | 1 |
| 385 | Pycnanthemum californicum | Sierra mint | 1 |
| 386 | Salazaria mexicana | Mexican bladder sage | 1 |
| 387 | Salvia apiana | white sage | 1 |
| 388 | Salvia columbariae | chia | 2 |
| 389 | Salvia dorrii | blue sage | 1 |
| 390 | Salvia mellifera | black sage | 2 |
| 391 | Scutellaria tuberosa | common skullcap | 1 |
| 392 | Stachys ajugoides var. ajugoides | Ajuga hedge nettle | 1 |
| 393 | Stachys albens | cobwebby hedge-nettle | 8 |
| 394 | Trichostema austromontanum | southern bluecurls | 1 |
| 395 | Trichostema parishii | Parish's bluecurls | 3 |
| Lauraceae | Laurel Family | ||
| 396 | Umbellularia californica | California bay | 1 |
| Loasaceae | Stick-Leaf Family | ||
| 397 | Mentzelia congesta | clustered blazing star | 3 |
| 398 | Mentzelia dispersa | scattered blazing star | 2 |
| 399 | Mentzelia laevicaulis | giant blazing star | 1 |
| 400 | Mentzelia micrantha | chaparral blazing star | 2 |
| 401 | Mentzelia veatchiana | Veatch's blazing star | 2 |
| Lythraceae | Loosestrife Family | ||
| 402 | Ammannia coccinea | red ammannia | 2 |
| 403 | Lythrum californicum | California loosestrife | 5 |
| Malvaceae | Mallow Family | ||
| 404 | Alcea rosea | *hollyhock | 1 |
| 405 | Malacothamnus fasciculatus | chaparral bush mallow | 2 |
| 406 | Malacothamnus fremontii | Fremont's bush mallow | 2 |
| Moraceae | Mulberry Family | ||
| 407 | Ficus palmata | *wild fig | 1 |
| Myrtaceae | Myrtle Family | ||
| 408 | Eucalyptus camaldulensis | *Red River gum | 1 |
| 409 | Eucalyptus globulus | *blue gum | 2 |
| 410 | Eucalyptus tereticornis | *forest red gum | 1 |
| Nyctaginaceae | Four-O'Clock Family | ||
| 411 | Abronia pogonantha | Mojave sand verbena | 2 |
| 412 | Mirabilis bigelovii var. bigelovii | Bigelow's desert four-o'clock | 1 |
| Oleaceae | Olive Family | ||
| 413 | Fraxinus velutina | velvet ash | 3 |
| Onagraceae | Evening Primrose Family | ||
| 414 | Camissonia bistorta | southern suncup | 3 |
| 415 | Camissonia boothii | Booth's sun cup | 2 |
| 416 | Camissonia californica | California suncup | 2 |
| 417 | Camissonia campestris | field sun-cup | 1 |
| 418 | Camissonia confusa | San Bernardino sun-cup | 3 |
| 419 | Camissonia confusa X C. hirtella | hybrid sun-cup | 1 |
| 420 | Camissonia hirtella | field sun-cup | 7 |
| 421 | Clarkia dudleyana | Dudley's clarkia | 3 |
| 422 | Clarkia epilobioides | canyon clarkia | 1 |
| 423 | Clarkia purpurea ssp. quadrivulnera | purple clarkia | 1 |
| 424 | Clarkia rhomboidea | diamond-petaled clarkia | 2 |
| 425 | Clarkia similis | Ramona clarkia | 1 |
| 426 | Epilobium angustifolium ssp. circumvagum | fireweed | 1 |
| 427 | Epilobium brachycarpum | autumn willowweed | 2 |
| 428 | Epilobium canum ssp. canum | California fuchsia | 2 |
| 429 | Epilobium canum ssp. latifolium | mountain California-fuchsia | 2 |
| 430 | Epilobium ciliatum | willowherb | 2 |
| 431 | Epilobium densiflorum | spike primrose | 1 |
| 432 | Epilobium glaberrimum ssp. glaberrimum | glaucus willowherb | 1 |
| 433 | Gayophytum diffusum ssp. parviflorum | groundsmoke | 4 |
| 434 | Gayophytum heterozygum | zig-zag gayophytum | 5 |
| 435 | Gayophytum humile | low gayophytum | 1 |
| 436 | Ludwigia repens | creeping water-primrose | 1 |
| 437 | Oenothera californica | California evening-primrose | 3 |
| Orobanchaceae | Broom-Rape Family | ||
| 438 | Boschniakia strobilacea | California groundcone | 1 |
| 439 | Orobanche bulbosa | chaparral broomrape | 1 |
| 440 | Orobanche californica ssp. feudgei | California broomrape | 5 |
| 441 | Orobanche fasciculata | clustered broom-rape | 6 |
| Paeoniaceae | Peony Family | ||
| 442 | Paeonia californica | California peony | 1 |
| Papaveraceae | Poppy Family | ||
| 443 | Argemone munita | prickly poppy | 2 |
| 444 | Dendromecon rigida | bush poppy | 1 |
| 445 | Dicentra chrysantha | golden ear drops | 1 |
| 446 | Eschscholzia californica | California poppy | 1 |
| 447 | Eschscholzia minutiflora | small-flowered poppy | 1 |
| 448 | Romneya coulteri | matilija poppy | 1 |
| Plantaginaceae | Plantain Family | ||
| 449 | Plantago lanceolata | *English plantain | 2 |
| 450 | Plantago major | *common plantain | 2 |
| 451 | Plantago patagonica | Patagonia plantain | 1 |
| Platanaceae | Sycamore Family | ||
| 452 | Platanus racemosa | western sycamore | 2 |
| Polemoniaceae | Phlox Family | ||
| 453 | Allophyllum gilioides ssp. gilioides | dense false-gilia | 1 |
| 454 | Allophyllum glutinosum | sticky false-gilia | 1 |
| 455 | Eriastrum densifolium ssp. austromontanum | southern mountain woolly-star | 4 |
| 456 | Eriastrum diffusum | miniature woolly-star | 2 |
| 457 | Eriastrum sapphirinum | sapphire woolly-star | 10 |
| 458 | Gilia angelensis | angel's gilia | 3 |
| 459 | Gilia brecciarum | Nevada gilia | 1 |
| 460 | Gilia cana | showy gilia | 3 |
| 461 | Gilia capitata | globe gilia | 2 |
| 462 | Gilia modocensis | Modoc gilia | 2 |
| 463 | Gilia ochroleuca ssp. bizonata | volcanic gilia | 1 |
| 464 | Gilia ochroleuca ssp. vivida | volcanic gilia | 2 |
| 465 | Gilia splendens ssp. grantii | Grant's gilia | 1 |
| 466 | Leptodactylon californicum | prickly phlox | 3 |
| 467 | Leptodactylon pungens | granite prickly phlox | 3 |
| 468 | Linanthus breviculus | Mojave linanthus | 10 |
| 469 | Linanthus ciliatus | whisker-brush | 1 |
| 470 | Linanthus liniflorus | flax-flowered linanthus | 2 |
| 471 | Loeseliastrum matthewsii | desert calico | 2 |
| 472 | Navarretia atractyloides | holly-leaf navarretia | 1 |
| Polygonaceae | Buckwheat Family | ||
| 473 | Centrostegia thurberi | Thurber's spineflower | 1 |
| 474 | Chorizanthe staticoides | Turkish rugging | 1 |
| 475 | Eriogonum cithariforme | Cithara buckwheat | 2 |
| 476 | Eriogonum davidsonii | Davidson's buckwheat | 17 |
| 477 | Eriogonum elongatum var. elongatum | long-stemmed buckwheat | 1 |
| 478 | Eriogonum fasciculatum var. foliolosum | California buckwheat | 1 |
| 479 | Eriogonum fasciculatum var. polifolium | California buckwheat | 1 |
| 480 | Eriogonum gracile var. gracile | slender buckwheat | 2 |
| 481 | Eriogonum maculatum | spotted buckwheat | 2 |
| 482 | Eriogonum microthecum | slender buckwheat | 1 |
| 483 | Eriogonum nudum | naked buckwheat | 4 |
| 484 | Eriogonum parishii | Parish's buckwheat | 3 |
| 485 | Eriogonum plumatella | yucca buckwheat | 1 |
| 486 | Eriogonum pusillum | yellow-turbans | 3 |
| 487 | Eriogonum saxatile | rock buckwheat | 8 |
| 488 | Eriogonum thurberi | Thurber's buckwheat | 2 |
| 489 | Eriogonum umbellatum | sulphur buckwheat | 14 |
| 490 | Eriogonum wrightii var. subscaposum | Wright's buckwheat | 1 |
| 491 | Oxytheca parishii | Parish's oxytheca | 4 |
| 492 | Polygonum arenastrum | *knotweed | 4 |
| 493 | Polygonum lapathifolium | willow weed | 3 |
| 494 | Pterostegia drymarioides | threadstem | 2 |
| 495 | Rumex crispus | *curly dock | 3 |
| 496 | Rumex salicifolius var. salicifolius | willow-leaved dock | 1 |
| Portulacaceae | Purslane Family | ||
| 497 | Calandrinia ciliata | red maids | 2 |
| 498 | Calyptridium monandrum | sand cress | 8 |
| 499 | Calyptridium monospermum | pussy paws | 5 |
| 500 | Calyptridium parryi | Parry's sand cress | 1 |
| 501 | Claytonia parviflora | narrow-leaved miner's lettuce | 1 |
| 502 | Claytonia perfoliata | miner's lettuce | 6 |
| 503 | Claytonia rubra ssp. rubra | red-stemmed miner's lettuce | 1 |
| 504 | Lewisia rediviva | bitter root | 2 |
| Primulaceae | Primrose Family | ||
| 505 | Anagallis arvensis | *scarlet pimpernel | 1 |
| 506 | Dodecatheon clevelandii | shooting star | 1 |
| 507 | Samolus parviflorus | water-pimpernel | 1 |
| Ranunculaceae | Buttercup Family | ||
| 508 | Aquilegia formosa | western columbine | 3 |
| 509 | Clematis lasiantha | virgin's bower | 3 |
| 510 | Clematis ligusticifolia | virgin's bower | 5 |
| 511 | Delphinium cardinale | scarlet larkspur | 1 |
| 512 | Delphinium parishii | Parish's larkspur | 2 |
| 513 | Delphinium parryi | blue larkspur | 3 |
| 514 | Ranunculus cymbalaria var. saximontanus | Rocky Mountain buttercup | 1 |
| 515 | Thalictrum fendleri | Fendler's meadow-rue | 2 |
| Rhamnaceae | Buckthorn Family | ||
| 516 | Ceanothus cordulatus | mountain whitethorn | 5 |
| 517 | Ceanothus crassifolius | hoaryleaf ceanothus | 7 |
| 518 | Ceanothus cuneatus | buck brush | 1 |
| 519 | Ceanothus greggii | desert ceanothus | 2 |
| 520 | Ceanothus integerrimus | deer brush | 1 |
| 521 | Ceanothus leucodermis | chaparral whitethorn | 10 |
| 522 | Rhamnus californica | California coffeeberry | 1 |
| 523 | Rhamnus crocea | redberry | 1 |
| 524 | Rhamnus ilicifolia | hollyleaf redberry | 1 |
| 525 | Rhamnus tomentella | hoary coffeeberry | 1 |
| Rosaceae | Rose Family | ||
| 526 | Adenostoma fasciculatum | chamise | 3 |
| 527 | Amelanchier pallida | pallid service-berry | 1 |
| 528 | Amelanchier utahensis | Utah service-berry | 3 |
| 529 | Aphanes occidentalis | western lady's mantle | 1 |
| 530 | Cercocarpus betuloides | birch-leaf mountain-mahogany | 5 |
| 531 | Cercocarpus ledifolius | curl-leaf mountain-mahogany | 4 |
| 532 | Heteromeles arbutifolia | toyon | 1 |
| 533 | Holodiscus microphyllus var. microphyllus | mountain spray | 2 |
| 534 | Horkelia rydbergii | Rydberg's horkelia | 1 |
| 535 | Potentilla glandulosa | sticky cinquefoil | 11 |
| 536 | Potentilla gracilis | northwest cinquefoil | 1 |
| 537 | Prunus emarginata | bitter cherry | 1 |
| 538 | Prunus fasciculata | desert almond | 1 |
| 539 | Prunus ilicifolia | holly-leaf cherry | 1 |
| 540 | Prunus mahaleb | * | 1 |
| 541 | Prunus virginiana var. demissa | western choke-cherry | 1 |
| 542 | Pyrus communis | *pear | 1 |
| 543 | Rosa californica | California wild rose | 2 |
| 544 | Rosa woodsii var. ultramontana | interior rose | 1 |
| 545 | Rubus discolor | *Himalaya blackberry | 1 |
| 546 | Rubus leucodermis | white-bark raspberry | 6 |
| 547 | Rubus parviflorus | thimbleberry | 1 |
| 548 | Sanguisorba minor ssp. muricata | *garden burnet | 1 |
| Rubiaceae | Bedstraw Family | ||
| 549 | Galium angustifolium ssp. gabrielense | San Antonio Canyon bedstraw | 3 |
| 550 | Galium aparine | common bedstraw | 4 |
| 551 | Galium hallii | nodding bedstraw | 1 |
| 552 | Galium parishii | Parish's bedstraw | 1 |
| Rutaceae | Rue Family | ||
| 553 | Ruta chalepensis | *fringed rue | 1 |
| Salicaceae | Willow Family | ||
| 554 | Populus balsamifera ssp. trichocarpa | black cottonwood | 1 |
| 555 | Populus fremontii ssp. fremontii | Fremont cottonwood | 3 |
| 556 | Salix exigua | narrowleaf willow | 5 |
| 557 | Salix gooddingii | black willow | 2 |
| 558 | Salix laevigata | red willow | 2 |
| 559 | Salix lasiolepis | arroyo willow | 9 |
| 560 | Salix scouleriana | Scouler's willow | 1 |
| Saxifragaceae | Saxifrage Family | ||
| 561 | Boykinia rotundifolia | round-leaved boykinia | 1 |
| 562 | Heuchera abramsii | Abrams's alumroot | 4 |
| 563 | Heuchera elegans | urn-flowered alumroot | 6 |
| 564 | Lithophragma tenellum | slender woodland star | 1 |
| Scrophulariaceae | Snapdragon Family | ||
| 565 | Antirrhinum coulterianum | Coulter's snapdragon | 1 |
| 566 | Antirrhinum multiflorum | chaparral snapdragon | 3 |
| 567 | Castilleja applegatei ssp. martinii | Martin's paintbrush | 8 |
| 568 | Castilleja exserta | purple owl's clover | 1 |
| 569 | Castilleja foliolosa | woolly Indian paintbrush | 3 |
| 570 | Castilleja miniata ssp. miniata | giant red paintbrush | 1 |
| 571 | Castilleja minor ssp. spiralis | lesser paintbrush | 2 |
| 572 | Castilleja plagiotoma | Mojave Indian paintbrush | 2 |
| 573 | Castilleja subinclusa ssp. subinclusa | long-leaf paintbrush | 1 |
| 574 | Collinsia bartsiifolia | white collinsia | 1 |
| 575 | Collinsia childii | Child's collinsia | 1 |
| 576 | Collinsia concolor | southern Chinese houses | 1 |
| 577 | Collinsia heterophylla | Chinese houses | 3 |
| 578 | Collinsia parryi | Parry's collinsia | 1 |
| 579 | Collinsia torreyi var. wrightii | Wright's collinsia | 1 |
| 580 | Cordylanthus nevinii | Nevin's bird's beak | 1 |
| 581 | Cordylanthus rigidus | rigid bird's beak | 4 |
| 582 | Keckiella breviflora | gaping keckiella | 1 |
| 583 | Keckiella cordifolia | heartleaf penstemon | 2 |
| 584 | Keckiella ternata | whorledleaf penstemon | 4 |
| 585 | Mimulus aurantiacus | bush monkeyflower | 7 |
| 586 | Mimulus brevipes | wide-throated yellow monkeyflower | 2 |
| 587 | Mimulus cardinalis | scarlet monkeyflower | 3 |
| 588 | Mimulus floribundus | floriferous monkeyflower | 4 |
| 589 | Mimulus fremontii | Fremont's monkeyflower | 2 |
| 590 | Mimulus guttatus | common monkeyflower | 1 |
| 591 | Mimulus johnstonii | Johnston's monkeyflower | 7 |
| 592 | Mimulus moschatus | musk monkeyflower | 1 |
| 593 | Mimulus parishii | Parish's monkeyflower | 2 |
| 594 | Mimulus rubellus | little redstem monkeyflower | 1 |
| 595 | Pedicularis semibarbata | pine lousewort | 1 |
| 596 | Penstemon centranthifolius | scarlet bugler | 3 |
| 597 | Penstemon centranthifolius X P. spectabilis var. spectabilis | hybrid penstemon | 1 |
| 598 | Penstemon grinnellii var. grinnellii | Grinnell's beardtongue | 1 |
| 599 | Penstemon rostriflorus | beaked penstemon | 4 |
| 600 | Penstemon speciosus | showy penstemon | 3 |
| 601 | Penstemon spectabilis | showy penstemon | 4 |
| 602 | Scrophularia californica | California bee plant | 2 |
| 603 | Verbascum virgatum | *wand mullein | 1 |
| 604 | Veronica arvensis | *corn speedwell | 1 |
| Solanaceae | Nightshade Family | ||
| 605 | Lycium cooperi | Cooper's box-thorn | 1 |
| 606 | Nicotiana attenuata | coyote tobacco | 1 |
| 607 | Physalis philadelphica | *tomatillo | 1 |
| 608 | Solanum douglasii | white nightshade | 1 |
| 609 | Solanum xanti | purple nightshade | 5 |
| Sterculiaceae | Cacao Family | ||
| 610 | Fremontodendron californicum | California fremontia | 1 |
| Styracaceae | Storax Family | ||
| 611 | Styrax officinalis var. redivivus | California snowdrop bush | 1 |
| Urticaceae | Nettle Family | ||
| 612 | Urtica dioica ssp. holosericea | stinging nettle | 1 |
| 613 | Urtica urens | *dwarf nettle | 1 |
| Valerianaceae | Valerian Family | ||
| 614 | Centranthus ruber | *Jupiter's beard | 1 |
| Verbenaceae | Vervain Family | ||
| 615 | Verbena lasiostachys | western vervain | 3 |
| 616 | Verbena tenuisecta | *South American mock vervain | 1 |
| Violaceae | Violet Family | ||
| 617 | Viola pedunculata | johnny jump-up | 1 |
| 618 | Viola purpurea | goosefoot violet | 8 |
| Viscaceae | Mistletoe Family | ||
| 619 | Arceuthobium campylopodum | pine dwarf-mistletoe | 1 |
| 620 | Arceuthobium divaricatum | western dwarf-mistletoe | 1 |
| 621 | Phoradendron densum | dense mistletoe | 1 |
| 622 | Phoradendron macrophyllum | big leaf mistletoe | 3 |
| 623 | Phoradendron pauciflorum | fir mistletoe | 1 |
| 624 | Phoradendron villosum | oak mistletoe | 3 |
| Vitaceae | Grape Family | ||
| 625 | Vitis girdiana | wild grape | 1 |
| Zygophyllaceae | Caltrop Family | ||
| 626 | Larrea tridentata | creosote bush | 2 |
Monocots | |||
| Cyperaceae | Sedge Family | ||
| 627 | Carex alma | sturdy sedge | 2 |
| 628 | Carex athrostachya | slender-beak sedge | 2 |
| 629 | Carex deweyana ssp. leptopoda | Dewey's taper-fruit sedge | 2 |
| 630 | Carex dudleyi | Dudley's sedge | 1 |
| 631 | Carex echinata | bristle-fruit sedge | 1 |
| 632 | Carex fracta | fragile sheath sedge | 3 |
| 633 | Carex lanuginosa | woolly sedge | 2 |
| 634 | Carex multicaulis | forest sedge | 2 |
| 635 | Carex praegracilis | clustered field sedge | 4 |
| 636 | Carex rossii | Ross' sedge | 2 |
| 637 | Cyperus difformis | *variable flatsedge | 1 |
| 638 | Cyperus eragrostis | umbrella sedge | 1 |
| 639 | Cyperus erythrorhizos | redroot flatsedge | 1 |
| 640 | Cyperus niger | black flatsedge | 1 |
| 641 | Eleocharis acicularis | needle spikerush | 1 |
| 642 | Eleocharis montevidensis | sand spikerush | 1 |
| 643 | Eleocharis parishii | Parish's spikerush | 9 |
| 644 | Eleocharis rostellata | beaked spikerush | 1 |
| 645 | Schoenus nigricans | black sedge | 1 |
| 646 | Scirpus acutus var. occidentalis | common tule | 2 |
| 647 | Scirpus americanus | American tule | 2 |
| 648 | Scirpus microcarpus | mountain bog bulrush | 4 |
| 649 | Scirpus pungens | three-square | 1 |
| 650 | Scirpus robustus | big bulrush | 1 |
| Iridaceae | Iris Family | ||
| 651 | Iris hartwegii ssp. australis | southern Hartweg's iris | 2 |
| 652 | Iris pseudacorus | *water iris | 1 |
| 653 | Sisyrinchium bellum | blue-eyed grass | 4 |
| 654 | Sisyrinchium idahoense | Idaho blue-eyed grass | 1 |
| Juncaceae | Rush Family | ||
| 655 | Juncus balticus | wire rush | 5 |
| 656 | Juncus bufonius var. bufonius | toad rush | 1 |
| 657 | Juncus duranii | Duran's rush | 2 |
| 658 | Juncus effusus var. pacificus | Pacific rush | 2 |
| 659 | Juncus ensifolius | three-stamened rush | 1 |
| 660 | Juncus longistylis | long-styled rush | 2 |
| 661 | Juncus macrophyllus | long-leaved rush | 2 |
| 662 | Juncus mexicanus | Mexican rush | 3 |
| 663 | Juncus rugulosus | wrinkled rush | 3 |
| 664 | Juncus textilis | basket rush | 1 |
| 665 | Juncus xiphioides | iris-leaved rush | 4 |
| Liliaceae | Lily Family | ||
| 666 | Allium burlewii | Burlew's onion | 5 |
| 667 | Allium haematochiton | red-skinned onion | 1 |
| 668 | Allium monticola | San Bernardino Mountain onion | 7 |
| 669 | Allium vineale | *vineyard onion | 1 |
| 670 | Calochortus invenustus | plain mariposa lily | 2 |
| 671 | Calochortus palmeri var. palmeri | Palmer's mariposa lily | 2 |
| 672 | Calochortus plummerae | Plummer's mariposa lily | 2 |
| 673 | Calochortus splendens | splendid mariposa lily | 1 |
| 674 | Chlorogalum pomeridianum | soaproot | 2 |
| 675 | Dichelostemma capitatum ssp. capitatum | blue dicks | 2 |
| 676 | Lilium humboldtii | Humboldt's lily | 1 |
| 677 | Lilium parryi | lemon lily | 2 |
| 678 | Muilla maritima | muilla | 7 |
| 679 | Smilacina stellata | little false-solomon's-seal | 1 |
| 680 | Yucca brevifolia | joshua tree | 1 |
| 681 | Yucca whipplei ssp. cespitosa | chaparral yucca | 1 |
| Orchidaceae | Orchid Family | ||
| 682 | Epipactis gigantea | stream orchid | 7 |
| 683 | Platanthera sparsiflora | sparse-flowered bog-orchid | 2 |
| Poaceae | Grass Family | ||
| 684 | Achnatherum coronatum | giant needlegrass | 4 |
| 685 | Achnatherum coronatum X A. speciosum | hybrid needlegrass | 1 |
| 686 | Achnatherum hymenoides | Indian ricegrass | 2 |
| 687 | Achnatherum occidentale ssp. californicum | California needlegrass | 1 |
| 688 | Achnatherum occidentale ssp. occidentale | western needlegrass | 1 |
| 689 | Achnatherum parishii | Parish's needlegrass | 7 |
| 690 | Achnatherum speciosum | desert needlegrass | 4 |
| 691 | Agrostis exarata | spike bentgrass | 8 |
| 692 | Agrostis gigantea | *giant bentgrass | 1 |
| 693 | Agrostis idahoensis | Idaho bentgrass | 2 |
| 694 | Agrostis scabra | rough bentgrass | 1 |
| 695 | Agrostis viridis | *green bentgrass | 2 |
| 696 | Andropogon glomeratus var. scabriglumis | southwestern bushy bluestem | 1 |
| 697 | Arundo donax | *giant reed | 1 |
| 698 | Avena barbata | *slender wild oats | 3 |
| 699 | Avena fatua | *wild oats | 1 |
| 700 | Bromus carinatus | California brome | 5 |
| 701 | Bromus diandrus | *ripgut brome | 4 |
| 702 | Bromus grandis | tall brome | 2 |
| 703 | Bromus hordeaceus | *soft chess | 1 |
| 704 | Bromus madritensis ssp. rubens | *red brome | 3 |
| 705 | Bromus orcuttianus | Orcutt's brome | 2 |
| 706 | Bromus tectorum | *downy brome | 10 |
| 707 | Chloris virgata | *feather finger grass | 1 |
| 708 | Cortaderia selloana | *pampas grass | 1 |
| 709 | Cynodon dactylon | *Bermuda grass | 1 |
| 710 | Dactylis glomerata | *orchard-grass | 5 |
| 711 | Echinochloa crus-galli | *barnyard grass | 1 |
| 712 | Ehrharta calycina | *perennial veldt grass | 1 |
| 713 | Elymus elymoides ssp. californicus | California squirreltail | 1 |
| 714 | Elymus glaucus ssp. glaucus | blue wildrye | 5 |
| 715 | Elymus glaucus ssp. jepsonii | Jepson's blue wildrye | 1 |
| 716 | Elymus trachycaulus | slender wheatgrass | 1 |
| 717 | Elytrigia elongata | *tall wheatgrass | 1 |
| 718 | Elytrigia intermedia ssp. intermedia | *intermediate wheatgrass | 1 |
| 719 | Festuca arundinacea | *tall fescue | 2 |
| 720 | Hordeum jubatum | squirreltail barley | 1 |
| 721 | Hordeum murinum | *foxtail barley | 1 |
| 722 | Koeleria macrantha | June grass | 1 |
| 723 | Lamarckia aurea | *goldentop | 1 |
| 724 | Leptochloa uninervia | Mexican sprangletop | 1 |
| 725 | Leymus condensatus | giant wild-rye | 1 |
| 726 | Melica californica | California melic | 1 |
| 727 | Melica imperfecta | coast-range melic | 5 |
| 728 | Melica stricta | rock melica | 2 |
| 729 | Muhlenbergia asperifolia | scratchgrass | 4 |
| 730 | Muhlenbergia californica | California muhly | 1 |
| 731 | Muhlenbergia microsperma | littleseed muhly | 1 |
| 732 | Muhlenbergia richardsonis | mat muhly | 1 |
| 733 | Muhlenbergia rigens | deergrass | 1 |
| 734 | Nassella cernua | nodding needlegrass | 1 |
| 735 | Panicum capillare | witchgrass | 1 |
| 736 | Paspalum distichum | knot grass | 1 |
| 737 | Paspalum urvillei | *Vasey's grass | 2 |
| 738 | Pennisetum clandestinum | *kikuyu grass | 1 |
| 739 | Phleum pratense | *timothy | 1 |
| 740 | Poa annua | *annual blue grass | 1 |
| 741 | Poa compressa | *Canada blue grass | 1 |
| 742 | Poa palustris | *fowl blue grass | 1 |
| 743 | Poa pratensis | *Kentucky blue grass | 2 |
| 744 | Poa secunda | one-sided blue grass | 4 |
| 745 | Polypogon monspeliensis | *rabbits-foot grass | 2 |
| 746 | Schismus barbatus | *Mediterranean schismus | 3 |
| 747 | Sorghum bicolor | *sorghum | 1 |
| 748 | Sorghum halepense | *johnsongrass | 1 |
| 749 | Triticum aestivum | *common wheat | 2 |
| 750 | Vulpia bromoides | *brome fescue | 1 |
| 751 | Vulpia microstachys var. microstachys | small fescue | 1 |
| 752 | Vulpia myuros var. hirsuta | *hairy rattail fescue | 2 |
| 753 | Vulpia octoflora | six-weeks fescue | 1 |
| Pontederiaceae | Pickerel-Weed Family | ||
| 754 | Eichhornia crassipes | *water hyacinth | 1 |
| Potamogetonaceae | Pondweed Family | ||
| 755 | Potamogeton illinoensis | shining pondweed | 1 |
| Typhaceae | Cat Tail Family | ||
| 756 | Typha angustifolia | narrow-leaf cattail | 1 |
| 757 | Typha domingensis | southern cattail | 2 |
| 758 | Typha latifolia | broadleaf cattail | 1 |