Flora of Laguna Meadow Area, Laguna Mountains, San Diego County



This checklist was made solely from vouchers, except for the addition of one species incidentally noted on a field trip on 10 October 2017.

On that field trip I was looking forward to seeing some of the species at the edge of the water of Big Laguna Lake, or in areas that had been previously covered by water. However, when we got to the Lake, we discovered that the entire area had been trashed by the large number of cows there. The wet area plants had been eaten down to stubs, and the entire area had been churned by zillions of hoofprints of the cattle. See, for example, this picture from just above the dam, showing some of the culprits at upper left. Most of the cows were in the water of the Lake, or at the margins of the Lake, not visible in the linked picture. The linked picture only shows the trampling in this area, since it is not right at the lake margin. Unfortunately, I failed to take a picture of the depressing scene at the lake margin, due to my disappointment at the time.

Although grazing has its place, particularly in controlling the growth of non-native annual grasses, in this case the grazing is totally out of place, with no beneficial effects. The cattle are mostly eating the lush riparian area plants, and ignoring the vast fields of non-native annual grasses in the dry margins of the lake. It would seem a good use of money for conservation organizations to buy out the grazing rights here, and get the cattle out of the lake area.

With such heavy pressure from extreme cattle grazing, along with the large fields of non-native weeds we observed in the meadow, one wonders how long the native plants and animals can survive. A butterfly, the Laguna Mountains Skipper, dependent on its rare host plant Horkelia clevelandii found here, has apparently been extirpated from this area, its type locality, due to the heavy grazing:

Habitat destruction and degradation from overgrazing and trampling by cattle are considered to be the reasons for the decline of H. clevelandii (62 FR 2314); however, this plant has not been federally or state listed. Grazing by cattle in the Laguna Mountains and near Mount Palomar has been shown to cause direct mortality of larvae and eggs by trampling and consumption of H. clevelandii (62 FR 2314, Black and Vaughan 2005). Related changes in hydrology, invasion of exotic species, and forest encroachment caused by cattle grazing also affect the host plant.


Lack of recent (1999 to present day) sightings on Laguna Mountain at areas with former known sighting concentrations and with the highest density of Horkelia clevelandii and Laguna Mountains skipper suggest that the entire Laguna Mountain range may have become depopulated since the time of listing (Anderson, pers. comm. Dec. 2006). Individual Laguna Mountains skippers have not been detected on Laguna Mountain since 1999 (Pratt 2006), and any remaining populations may not be resilient enough to survive into the foreseeable future under current conditions. Laguna Mountain constituted over half of the Laguna Mountains skipper’s former range (Figure 1). Loss of occupancy in this area may reflect a significant loss of genetic diversity for the skipper, and alter its long-term ability to adapt to changing environmental conditions and stochastic eventsevents. However, not all suitable habitat has been surveyed, and low populations are difficult to detect (Anderson, pers. comm. Dec. 2006). At this time, insufficient evidence exists to conclude that suitable habitat in the Laguna Mountains no longer supports an extant population, and presumption of complete extirpation would be premature at this time.

Laguna Mountains Skipper (Pyrgus ruralis lagunae)
5-Year Review: Summary and Evaluation
U.S. Fish and Wildlife Service
Carlsbad Fish and Wildlife Office
Carlsbad, California
September 2007


Vouchers were searched on 8 October 2017 at Consortium of California Herbaria. A geographic coordinate search, for vouchers with coordinates, was made for the region of 32.86 to 32.91° north latitude and -116.48 to -116.44° east longitude. No separate search was made for non-georeferenced vouchers.

The search yielded a total of 1653 vouchers. Fig. 1 shows the locations of the retrieved vouchers.

Fig. 1. Locations of all 1653 retrieved vouchers (black dots). Laguna Meadow is outlined in blue. The "Laguna Meadow Area" is here defined by the locations of the black dots.

The vast majority of vouchers are outside Laguna Meadow itself. Since a checklist based just on Laguna Meadow vouchers would be very incomplete, I've compiled the checklist here using vouchers from the entire area shown in Fig. 1, which I hereby take as the "Laguna Meadow Area". Since this is a much bigger area than just Laguna Meadow itself, this checklist should not be construed as a checklist for just Laguna Meadow.

Vouchers with a locality of Oasis Spring were tossed, since that is a very different habitat than most of the rest of this area. If it had been easy to do so, I would have tried to toss other vouchers taken from the escarpment to the east of the flattish area. But unfortunately the vagueness of the localities for many vouchers made that a nearly impossible task, so I was only able to toss the Oasis Spring vouchers since that is a definitive location.

A checklist was then made from the remaining vouchers. 15 taxa were rejected from that checklist, since I judged them to be either misdetermined, or incorrectly georeferenced; see Table 1. Five of these taxa are Baja California species, collected by Marcus Jones from “The Laguna, Laguna Mountains”, undoubtedly from the Sierra de la Laguna mountain range in Baja, not from the Laguna Mountains in San Diego County.

The final list contains 436 unique taxa from the vouchers, augmented by one species (Erigeron canadensis) we incidentally noted on a field trip on 10 October 2017.

Table 1. Taxa Rejected from the Checklist

TaxonReason for rejection
Allium bisceptrum Probable misdetermination since it is way out of range. The Jepson Manual (JM) regions are: CaRH, SNH, GB
Arracacia brandegei var. sylvatica Error in georeferencing; this is a Baja California taxon (a collection from “The Laguna, Laguna Mountains” with no collector info; probably from Marcus Jones)
Astragalus pomonensis Probable misdetermination of the very similar A. douglasii. A. pomonensis is mostly a low elevation taxon
Borreria lagunensis Error in georeferencing; this is a Baja California taxon (Marcus Jones collection from “The Laguna, Laguna Mountains”)
Encelia californica Error in georeferencing; this is probably from “Laguna Hills” in Orange County
Horkelia bolanderi Probable misdetermination of H. clevelandii, which is also known as H. bolanderi ssp. clevelandii. The JM region for H. bolanderi is only NcoRI.
Lechea tripetala Error in georeferencing; this is a Baja California taxon (Marcus Jones collection from “The Laguna, Laguna Mountains”)
Lithophragma heterophyllum Probable misdetermination: JM regions: NCoRO, s NCoRI (Solano, Napa cos.), n SNH (Calaveras Co.), SnFrB, ScoR
Plectritis macrocera Probable misdetermination; the dupe of the voucher is the expected P. ciliosa
Ptelea aptera Error in georeferencing; this is a Baja California taxon
Quercus Xmacdonaldii Typo in determination, since the voucher annotation says Q. Xacutidens
Symphoricarpos mollis A historical misdetermination: the Laguna plants are all S. albus
Trifolium depauperatum var. amplectens Probable misdetermination: JM regions GV, SnFrB, ScoR
Verbena carolina Error in georeferencing; this is a Baja California taxon (Marcus Jones collection from “The Laguna, Laguna Mountains”)
Verbesina pustulata Error in georeferencing; this is a Baja California taxon (Marcus Jones collection from “The Laguna, Laguna Mountains”)



An asterisk before the common name indicates a non-native species.

The family name is abbreviated to the first three characters in order to save space in the table rows.

The column #V gives the number of vouchers for this area. The single species no voucher, Erigeron canadensis, was incidentally noted on a field trip on 10 October 2017 where we did not record the species we saw.

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#FamScientific Name(*)Common Name#V
1IsoIsoetes howelliiHowell's quillwort4
2BleWoodwardia fimbriatagiant chain fern2
3DenPteridium aquilinum var. pubescensbracken1
4DryDryopteris argutaCalifornia wood fern1
5DryPolystichum imbricans ssp. curtumcliff sword fern8
6MarMarsilea vestita ssp. vestitaclover fern8
7PteCheilanthes covilleibeady lipfern7
8PtePellaea mucronata var. mucronatabird's-foot fern1
9PtePentagramma triangularis ssp. triangularisgoldback fern3
10WooCystopteris fragilisbrittle bladder fern3
11CupCalocedrus decurrensincense-cedar3
12CupJuniperus californicaCalifornia juniper1
13PinPinus coulteriCoulter pine4
14PinPinus jeffreyiJeffrey pine6
15LauUmbellularia californicaCalifornia bay6
16AdoSambucus nigra ssp. caeruleablue elderberry5
17AmaAmaranthus albus*tumble pigweed1
18AmaAmaranthus californicusCalifornia amaranth1
19AnaRhus aromaticabasketbush5
20AnaRhus ovatasugar bush1
21ApiLomatium dasycarpum ssp. dasycarpumwoolly-fruited lomatium2
22ApiOenanthe sarmentosawater-parsley2
23ApiOsmorhiza berteroimountain sweet-cicely1
24ApiOsmorhiza brachypodaCalifornia sweet-cicely3
25ApiPerideridia parishii ssp. latifoliawide-leaved Parish's yampah1
26ApiSanicula graveolensSierra sanicle5
27ApiTauschia argutasouthern tauschia2
28ApiYabea microcarpaCalifornia hedge-parsley3
29ApoAsclepias eriocarpaIndian milkweed5
30ApoAsclepias fascicularisnarrow-leaf milkweed1
31AraHydrocotyle ranunculoidesfloating marsh-pennywort1
32AstAchillea millefoliumyarrow10
33AstAgoseris grandiflora var. grandifloragrand mountain dandelion4
34AstAgoseris retrorsaspear-leaved mountain dandelion2
35AstAmbrosia psilostachyawestern ragweed1
36AstArtemisia douglasianamugwort1
37AstArtemisia ludoviciana ssp. incomptamountain mugwort2
38AstArtemisia ludoviciana ssp. ludovicianasilver wormwood1
39AstArtemisia tridentatabig sagebrush3
40AstBaccharis pilularis ssp. consanguineacoyote bush1
41AstChaenactis artemisiifoliameally white pincushion1
42AstChaenactis glabriuscula var. glabriusculayellow pincushion2
43AstCirsium occidentale var. californicumCalifornia thistle4
44AstCirsium scariosumelk thistle6
45AstCirsium scariosum var. americanumdinnerplate thistle1
46AstCirsium scariosum var. congdoniirosette thistle1
47AstCorethrogyne filaginifoliaCalifornia-aster6
48AstCotula coronopifolia*brass-buttons1
49AstEricameria cuneata var. macrocephalaLaguna Mtns. goldenbush1
50AstEricameria linearifolianarrowleaf goldenbush2
51AstErigeron canadensishorseweed
52AstErigeron divergensspreading fleabane7
53AstErigeron foliosus var. foliosusleafy daisy9
54AstEriophyllum confertiflorum var. confertiflorumgolden yarrow6
55AstEriophyllum wallaceiWallace's woolly daisy4
56AstEriophyllum wallacei var. rubellumWallace's woolly daisy1
57AstGnaphalium palustrewestern marsh cudweed4
58AstGrindelia halliiSan Diego gumplant4
59AstGutierrezia sarothraematchweed3
60AstHelianthus gracilentusslender sunflower1
61AstHelminthotheca echioides*bristly ox-tongue1
62AstHemizonella minimadwarf madia1
63AstHymenothrix wrightiiWright's thimblehead2
64AstLactuca serriola*prickly lettuce1
65AstLagophylla ramosissimacommon hareleaf1
66AstLasthenia gracilisgoldfields3
67AstLayia platyglossacommon tidy-tips4
68AstMadia exiguapygmy madia1
69AstMadia gracilisslender madia4
70AstOsmadenia tenellathree spot1
71AstPentachaeta aureagolden daisy17
72AstPseudognaphalium californicumCalifornia everlasting1
73AstPseudognaphalium microcephalumwhite everlasting1
74AstPseudognaphalium stramineumcotton-batting plant3
75AstPsilocarphus brevissimus var. brevissimuswoolly marbles1
76AstPsilocarphus tenellusslender woolly marbles1
77AstSenecio californicusCalifornia groundsel1
78AstSolidago velutina ssp. californicagoldenrod5
79AstSonchus asper ssp. asper*prickly sow thistle1
80AstStephanomeria exigua ssp. deaneislender wreathplant1
81AstStephanomeria virgata ssp. pleurocarpatwiggy wreath plant2
82AstSymphyotrichum defoliatumSan Bernardino aster3
83AstTaraxacum erythrospermumred-seeded dandelion1
84AstTaraxacum officinale*common dandelion2
85AstTragopogon dubius*yellow salsify5
86AstUropappus lindleyisilver puffs2
87AstWyethia ovatasouthern mule's ears5
88BorCryptantha intermedia var. intermediapopcorn flower7
89BorCryptantha micrantha var. lepidamountain red-root cryptantha2
90BorCryptantha muricata var. denticulataprickly-nut cryptantha1
91BorCryptantha muricata var. jonesiiJones' prickly-nut cryptantha1
92BorEriodictyon parryipoodle-dog bush8
93BorNemophila menziesii var. integrifoliababy blue eyes6
94BorPhacelia brachylobashort-lobed phacelia1
95BorPhacelia curvipescurve-stem phacelia2
96BorPhacelia davidsoniiDavidson's phacelia6
97BorPhacelia distanscommon phacelia6
98BorPhacelia imbricata var. patulaimbricate phacelia7
99BorPhacelia ramosissimabranching phacelia5
100BorPlagiobothrys bracteatusbracted popcorn flower1
101BorPlagiobothrys collinus var. fulvescensCalifornia popcorn flower1
102BorPlagiobothrys hispidulusharsh allocarya1
103BorPlagiobothrys nothofulvusrusty-haired popcorn flower1
104BorPlagiobothrys tenellusslender popcorn flower6
105BraAthysanus pusillusdwarf athysanus6
106BraBarbarea orthoceraswinter cress5
107BraBoechera californicaCalifornia elegant rock-cress2
108BraBoechera perennansperennial rock-cress5
109BraBoechera retrofracta Xmountain rock-cress7
110BraDescurainia pinnatawestern tansy-mustard3
111BraErysimum capitatum var. capitatumwestern wallflower5
112BraLepidium virginicum ssp. menziesiiwild pepper-grass5
113BraRorippa curvisiliquacurvepod yellow-cress1
114BraRorippa tenerrimaModoc yellow-cress2
115BraSisymbrium altissimum*tumble-mustard4
116BraStreptanthus bernardinusLaguna Mtns. jewel-flower4
117BraStreptanthus campestrissouthern jewel-flower3
118BraThysanocarpus curvipes ssp. curvipesfringe-pod1
119BraThysanocarpus curvipes ssp. elegansfringe-pod1
120BraThysanocarpus curvipes ssp. eradiatusfringe-pod2
121BraThysanocarpus rigiduslace-pod1
122CacOpuntia phaeacanthadesert prickly-pear2
123CanCeltis reticulatanet-leaf hackberry2
124CapLonicera subspicata var. denudatasouthern honeysuckle11
125CapSymphoricarpos albus var. laevigatussnowberry2
126CapSymphoricarpos rotundifolius var. parishiiParish's snowberry2
127CarArenaria lanuginosa var. saxosaspreading sandwort1
128CarMinuartia pusillaannual sandwort3
129CarSilene verecundawhite catch-fly7
130CarStellaria nitensshining chickweed5
131CheChenopodium atrovirensforest goosefoot1
132CheChenopodium berlandieripit-seed goosefoot2
133CheChenopodium fremontiiFremont's goosefoot1
134CheChenopodium hiansgaping goosefoot1
135CheSalsola tragus*Russian thistle1
136ConCalystegia occidentalis ssp. fulcratawestern morning-glory9
137ConCuscuta californica var. californicaCalifornia dodder2
138ConCuscuta subinclusacanyon dodder2
139CraDudleya abramsii ssp. abramsiiAbrams' dudleya3
140DatDatisca glomerataDurango root3
141ElaElatine californicaCalifornia waterwort4
142EriArctostaphylos glandulosa ssp. adamsiiLaguna manzanita3
143EriArctostaphylos pringlei ssp. drupaceapink-bracted manzanita1
144EupChamaesyce serpyllifolia ssp. hirtulahairy thyme-leafed spurge1
145EupEuphorbia luridawoodland spurge5
146FabAcmispon americanus var. americanusSpanish clover6
147FabAcmispon argophyllus var. argophyllussouthern California silver-lotus2
148FabAcmispon nevadensis var. davidsoniiDavidson's lotus2
149FabAcmispon nevadensis var. nevadensisSierra Nevada lotus11
150FabAcmispon strigosusstrigose lotus4
151FabAstragalus douglasii var. parishiiParish' Jacumba milk-vetch14
152FabAstragalus douglasii var. perstrictusJacumba milk-vetch2
153FabCercis occidentaliswestern redbud7
154FabHoita macrostachyaleather root1
155FabHoita orbiculariscreeping leather root1
156FabHosackia oblongifolia var. oblongifoliastreambank lotus4
157FabLathyrus vestitus var. alefeldiiSan Diego pea3
158FabLupinus albifrons var. albifronssilver bush lupine1
159FabLupinus andersoniiAnderson's lupine1
160FabLupinus bicolordwarf lupine10
161FabLupinus concinnus ssp. optatusshowy bajada lupine2
162FabLupinus excubitus var. austromontanusmountain grape-soda lupine1
163FabLupinus excubitus var. halliibush lupine1
164FabLupinus excubitus var. mediusMountain Springs bush lupine2
165FabLupinus formosus var. bridgesiiwestern lupine1
166FabLupinus formosus var. formosuswestern lupine2
167FabLupinus latifolius var. parishiiParish's lupine2
168FabRupertia rigidaParish's rupertia8
169FabSenegalia greggiicatclaw1
170FabThermopsis californica var. semotavelvety false lupine8
171FabTrifolium albopurpureumIndian clover2
172FabTrifolium ciliolatumtree clover1
173FabTrifolium gracilentumpin-point clover1
174FabTrifolium microcephalumsmall-head field clover3
175FabTrifolium pratense*red clover1
176FabTrifolium variegatumvariegated clover2
177FabTrifolium willdenoviitomcat clover2
178FabTrifolium wormskioldiicows clover4
179FabVicia americana ssp. americanaAmerican vetch8
180FagQuercus agrifolia var. oxyadeniasouthern coast live oak1
181FagQuercus chrysolepiscanyon live oak9
182FagQuercus cornelius-mulleridesert scrub oak2
183FagQuercus kelloggiiCalifornia black oak3
184FagQuercus wislizeni var. frutescensinterior live oak3
185FagQuercus Xmorehusoracle oak1
186GarGarrya flavescensashy silk tassel6
187GerErodium cicutarium*redstem filaree4
188GerGeranium californicumCalifornia geranium2
189GroRibes indecorumwhite-flowering currant1
190GroRibes roezlii var. roezliiSierra gooseberry2
191HalMyriophyllum sibiricumSiberian milfoil2
192HypHypericum scouleriScouler's St. Johnswort2
193LamMentha canadensiswild mint1
194LamMonardella linoides ssp. linoidesnarrowleaf monardella3
195LamMonardella macrantha ssp. macranthahummingbird monardella7
196LamMonardella nanalittle monardella14
197LamSalvia apianawhite sage1
198LamSalvia sonomensisSonoma sage2
199LamStachys rigida var. rigidarigid hedge-nettle2
200LamTrichostema parishiiParish's bluecurls3
201LimLimnanthes alba ssp. parishiiParish's meadowfoam20
202LinLinum lewisii var. lewisiiLewis' flax6
203LoaMentzelia dispersascattered blazing star1
204LoaMentzelia veatchianaVeatch's blazing star1
205MalAbutilon palmeriPalmer's abutilon1
206MalFremontodendron californicumflannelbush1
207MalMalacothamnus aboriginumIndian Valley bush mallow2
208MalSidalcea sparsifoliacheckerbloom18
209MonCalyptridium monandrumsand cress1
210MonClaytonia parviflora ssp. parvifloranarrow-leaved miner's lettuce5
211MonClaytonia parviflora ssp. viridisgreen miner's lettuce7
212MonClaytonia perfoliata ssp. intermontanaminer's lettuce1
213MonClaytonia perfoliata ssp. perfoliataminer's lettuce1
214MonClaytonia rubra ssp. rubrared-stemmed miner's lettuce2
215MonMontia chamissoitoad lily1
216MonMontia linearisnarrow-leaved water chickweed4
217MyrAnagallis minimachaffweed4
218NycMirabilis multiflora var. pubescensgiant four o'clock4
219OnaCamissonia strigulosastrigose suncup3
220OnaCamissoniopsis hirtellafield suncup2
221OnaClarkia purpurea ssp. quadrivulnerapurple clarkia2
222OnaClarkia rhomboideadiamond-petaled clarkia7
223OnaEpilobium brachycarpumautumn willowweed1
224OnaEpilobium canum ssp. latifoliummountain California-fuchsia3
225OnaEpilobium ciliatum ssp. ciliatumwillowherb2
226OnaEpilobium densiflorumspike primrose1
227OnaGayophytum diffusum ssp. parviflorumgroundsmoke6
228OroCastilleja applegatei ssp. martiniiMartin's paintbrush10
229OroCastilleja applegatei ssp. pinetorumpine wavy-leaf paintbrush1
230OroCastilleja foliolosawoolly Indian paintbrush1
231OroCastilleja miniata ssp. miniatagiant red paintbrush9
232OroCastilleja minor ssp. spiralislesser paintbrush1
233OroCordylanthus rigidus ssp. setigerbristly bird's beak3
234OroOrobanche bulbosachaparral broomrape3
235OroOrobanche fasciculataclustered broomrape2
236PapArgemone munitaprickly poppy3
237PapDendromecon rigidabush poppy2
238PapEhrendorferia chrysanthagolden ear drops1
239PapPlatystemon californicuscream cups9
240PhrMimulus androsaceusandrosace monkeyflower1
241PhrMimulus aurantiacus var. ariduslow bush monkeyflower1
242PhrMimulus aurantiacus var. puniceusred bush monkeyflower1
243PhrMimulus brevipeswide-throated yellow monkeyflower2
244PhrMimulus diffususPalomar monkeyflower7
245PhrMimulus floribundusfloriferous monkeyflower4
246PhrMimulus guttatuscommon monkeyflower6
247PhrMimulus palmeriPalmer's monkeyflower5
248PhrMimulus pilosusfalse monkeyflower3
249PlaCallitriche marginatawinged water-starwort1
250PlaCollinsia concolorsouthern Chinese houses6
251PlaCollinsia parviflorablue-eyed Mary 9
252PlaKeckiella ternata var. ternatawhorledleaf penstemon5
253PlaPenstemon centranthifoliusscarlet bugler7
254PlaPenstemon clevelandii var. clevelandiiCleveland's beardtongue1
255PlaPenstemon clevelandii var. connatusSan Jacinto beardtongue2
256PlaPenstemon labrosusSan Gabriel beardtongue6
257PlaPenstemon rostriflorusbeaked penstemon7
258PlaPenstemon spectabilis var. spectabilisshowy penstemon4
259PlaPlantago lanceolata*English plantain2
260PlaPlantago major*common plantain1
261PlaVeronica peregrina ssp. xalapensispurslane speedwell3
262PlaPlatanus racemosawestern sycamore1
263PolAllophyllum gilioides ssp. gilioidesdense false-gilia4
264PolAllophyllum gilioides ssp. violaceumdense false-gilia4
265PolAllophyllum glutinosumsticky false-gilia4
266PolCollomia grandifloralarge-flowered collomia10
267PolEriastrum densifolium ssp. austromontanumsouthern mountain woolly-star3
268PolEriastrum sapphirinumsapphire woolly-star1
269PolGilia capitata ssp. abrotanifoliaglobe gilia6
270PolGilia diegensiscoastal gilia4
271PolLeptosiphon ciliatuswhisker-brush2
272PolLeptosiphon floribundus ssp. floribundussummer snow4
273PolLeptosiphon floribundus ssp. glabersummer snow8
274PolLeptosiphon parvifloruscommon linanthus7
275PolLeptosiphon pygmaeuspygmy linanthus3
276PolLinanthus dianthiflorusground pink1
277PolLinanthus orcuttiiOrcutt's linanthus1
278PolMicrosteris gracilisannual phlox7
279PolNavarretia intertextaneedleleaf navarretia7
280PolSaltugilia caruifoliacaraway-leaved gilia5
281PolChorizanthe polygonoides var. longispinalong-spined spineflower1
282PolEriogonum davidsoniiDavidson's buckwheat3
283PolEriogonum fasciculatum var. polifoliumCalifornia buckwheat6
284PolEriogonum nudum var. pauciflorumnaked buckwheat1
285PolEriogonum wrightii var. membranaceumWright's buckwheat5
286PolPersicaria amphibiawater smartweed6
287PolPolygonum aviculare ssp. depressum*knotweed3
288PolPolygonum sawatchense ssp. sawatchenseJohnston's knotweed4
289PolPterostegia drymarioidesfairy bowties, threadstem1
290PolRumex californicuswillow-leaved dock5
291PolRumex crispus*curly dock1
292RanAquilegia formosawestern columbine1
293RanDelphinium parishii ssp. subglobosumintermediate larkspur1
294RanDelphinium parryi ssp. parryiblue larkspur1
295RanDelphinium patens ssp. hepaticoideumspreading larkspur4
296RanDelphinium patens ssp. montanumspreading larkspur2
297RanRanunculus aquatilis var. diffususwater crowfoot8
298RanRanunculus californicusCalifornia buttercup14
299RanRanunculus cymbalariaRocky Mountain buttercup1
300RanRanunculus testiculatus*tubercled crowfoot1
301RanThalictrum fendleri var. fendleriFendler's meadow-rue5
302RanThalictrum fendleri var. polycarpummeadow-rue2
303RhaCeanothus leucodermischaparral whitethorn4
304RhaCeanothus palmeriPalmer's ceanothus13
305RhaCeanothus perplexanscupped-leaf ceanothus2
306RhaFrangula californicaCalifornia coffeeberry2
307RhaFrangula californica ssp. tomentellahoary coffeeberry3
308RhaRhamnus ilicifoliahollyleaf redberry4
309RhaRhamnus pilosahairyleaf redberry1
310RosAdenostoma fasciculatumchamise1
311RosAmelanchier utahensisUtah service-berry4
312RosCercocarpus betuloides var. betuloidesbirch-leaf mountain-mahogany9
313RosDrymocallis glandulosa var. reflexasticky cinquefoil5
314RosFragaria vescawoodland strawberry1
315RosHeteromeles arbutifoliatoyon1
316RosHolodiscus discolor var. microphyllusmountain spray3
317RosHorkelia clevelandii var. clevelandiiCleveland's horkelia13
318RosPotentilla gracilis var. fastigiataslender cinquefoil5
319RosPrunus ilicifolia ssp. ilicifoliahollyleaf cherry3
320RosPrunus virginiana var. demissawestern choke-cherry5
321RosRosa californicaCalifornia wild rose3
322RosRosa woodsii ssp. gratissimainterior rose1
323RubGalium andrewsii ssp. andrewsiiphlox-leaved bedstraw8
324RubGalium angustifolium ssp. angustifoliumnarrowleaf bedstraw3
325RubGalium angustifolium ssp. jacinticumSan Jacinto Mtns. bedstraw1
326RubGalium aparinecommon bedstraw3
327RubGalium johnstoniiJohnston's bedstraw1
328SalSalix laevigatared willow2
329SalSalix lasiolepisarroyo willow1
330SaxHeuchera brevistamineaMt. Laguna alumroot1
331SaxLithophragma affinewoodland star4
332ScrLimosella acaulisstemless mudwort11
333ScrScrophularia californicaCalifornia bee plant1
334SolNicotiana attenuatacoyote tobacco2
335SolNicotiana obtusifoliadesert tobacco1
336SolPetunia parviflorawild petunia3
337SolSolanum rostratum*buffalo berry1
338SolSolanum umbelliferumblue-witch nightshade4
339UrtUrtica dioica ssp. holosericeastinging nettle2
340ValPlectritis ciliosalong-spurred plectritis4
341VioViola douglasiiDouglas' violet7
342VioViola pinetorum ssp. pinetorumpine violet2
343VioViola purpurea ssp. purpureagoosefoot violet2
344VioViola purpurea ssp. quercetorumgoosefoot yellow violet5
345VisArceuthobium campylopodumpine dwarf-mistletoe11
346VisPhoradendron serotinum ssp. tomentosumoak mistletoe1
347AgaHesperoyucca whippleichaparral yucca1
348AllAllium campanulatumdusky onion1
349AllAllium parryiParry's fringed onion7
350AspAsparagus asparagoides*smilax1
351CypCarex praegracilisclustered field sedge2
352CypCarex sentaswamp sedge1
353CypCarex subfuscabrown sedge10
354CypCyperus parishiiParish's flatsedge1
355CypCyperus squarrosusbearded flatsedge3
356CypEleocharis bellaneedle spikerush2
357CypEleocharis montevidensissand spikerush1
358CypSchoenoplectus americanusAmerican tule1
359CypScirpus microcarpuspanicled bulrush1
360IriIris missouriensiswestern blue flag3
361JunJuncus bryoidesmoss rush2
362JunJuncus bufonius var. bufoniustoad rush2
363JunJuncus bufonius var. occidentaliswestern toad rush5
364JunJuncus effusus ssp. austrocalifornicusSonoran rush1
365JunJuncus macrophylluslong-leaved rush8
366JunJuncus mexicanusMexican rush5
367JunJuncus rugulosuswrinkled rush3
368JunJuncus xiphioidesiris-leaved rush3
369JunTriglochin scilloidesflowering quillwort6
370LilCalochortus albuswhite fairy lantern3
371LilCalochortus concolorgolden-bowl mariposa5
372LilCalochortus invenustusplain mariposa lily3
373LilCalochortus splendenssplendid mariposa lily4
374LilCalochortus weedii var. weediiyellow mariposa lily1
375OrcEpipactis giganteastream orchid1
376PoaAgrostis exarataspike bentgrass5
377PoaAgrostis pallensseashore bentgrass6
378PoaAlopecurus aequalis var. aequalisshort-awn foxtail5
379PoaAlopecurus carolinianusCarolina foxtail1
380PoaAristida divaricatapoverty three-awn2
381PoaAvena barbata*slender wild oats1
382PoaAvena fatua*wild oats1
383PoaBromus arenarius*Australian brome1
384PoaBromus carinatus var. carinatusCalifornia brome9
385PoaBromus carinatus var. marginatusMountain brome3
386PoaBromus diandrus*ripgut brome1
387PoaBromus grandistall brome3
388PoaBromus hordeaceus*soft chess1
389PoaBromus japonicus*Japanese chess1
390PoaBromus madritensis ssp. rubens*red brome1
391PoaBromus sitchensisSitka brome1
392PoaBromus tectorum*downy brome6
393PoaDeschampsia danthonioidesannual hairgrass2
394PoaDeschampsia elongataslender hairgrass2
395PoaElymus ×gouldiihybrid wild-rye3
396PoaElymus elymoidessquirreltail10
397PoaElymus glaucus ssp. glaucusblue wildrye9
398PoaElymus multisetusbig squirreltail1
399PoaElymus stebbinsiiStebbins' wildrye1
400PoaElymus trachycaulus ssp. trachycaulusslender wheatgrass6
401PoaElymus triticoidescreeping wild rye8
402PoaFestuca arundinacea*tall fescue1
403PoaFestuca microstachyssmall fescue3
404PoaFestuca myuros*rattail fescue6
405PoaFestuca perennis*Italian rye-grass1
406PoaFestuca rubrared fescue2
407PoaHordeum brachyantherum ssp. californicumCalifornia meadow barley8
408PoaHordeum murinum ssp. glaucum*foxtail barley1
409PoaKoeleria macranthaJune grass15
410PoaMelica imperfectacoast-range melic2
411PoaMuhlenbergia asperifoliascratchgrass4
412PoaMuhlenbergia richardsonismat muhly5
413PoaMuhlenbergia rigensdeergrass3
414PoaPhalaris arundinaceareed canarygrass7
415PoaPhleum pratense*timothy1
416PoaPoa atropurpureaSan Bernardino blue grass17
417PoaPoa bulbosa ssp. vivipara*bulbous blue grass2
418PoaPoa howelliiHowell's blue grass6
419PoaPoa pratensis ssp. pratensis*Kentucky blue grass9
420PoaPoa secunda ssp. secundaone-sided bluegrass5
421PoaPolypogon monspeliensis*rabbits-foot grass3
422PoaPolypogon viridis*green bentgrass1
423PoaSporobolus cryptandrussand dropseed1
424PoaStipa coronatagiant needlegrass4
425PoaStipa lemmonii var. lemmoniiLemmon's needlegrass7
426PoaStipa occidentalis var. pubescensElmer's needlegrass1
427PoaStipa speciosadesert needlegrass2
428PoaTriticum aestivum*common wheat1
429PotPotamogeton berchtoldiismall pondweed1
430PotPotamogeton nodosuslong-leaved pondweed3
431PotStuckenia pectinatafennel-leaved pondweed4
432TheBloomeria crocea var. croceagoldenstar6
433TheBrodiaea terrestris ssp. kernensisearth brodiaea6
434TheDichelostemma capitatum ssp. capitatumblue dicks1
435TheDichelostemma capitatum ssp. pauciflorumfew-flowered blue dicks2
436TypTypha latifoliabroadleaf cattail2
437ZanZannichellia palustrishorned pondweed3

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Copyright © 2017 by Tom Chester
Permission is freely granted to reproduce any or all of this page as long as credit is given to me at this source:
Comments and feedback: Tom Chester
Last update: 14 October 2017 (error in links for Elymus corrected 18 June 2020, thanks to Carla Hoegen reporting that error)