Plant Voucher Checklist for Whitewater River Canyon, San Bernardino Mountains

Procedure For Compiling The Checklist

Later Checklist Incorporating Further Survey Results


See Later Checklist Incorporating Further Survey Results for a better, more complete checklist which adds further survey results to the checklist presented below.

This is not to be confused with a flora of this area!!! This is only a compilation of voucher names, found in an online search in January 2010 for vouchers. It may have some obviously-wrong names in it!!

This was compiled solely in preparation for the BioBlitz scheduled in Whitewater River Canyon on 12-13 April 2010.

The goal of the organizers of the BioBlitz was to have as complete a checklist as possible, so this list errs on the side of completeness. Of course, the tradeoff for higher completeness is lower reliability, and thus this checklist undoubtedly includes taxa that are not actually found here.

Such voucher lists are usually very incomplete. However, I was astounded by the number of vouchers from the Banning Pass area; this voucher checklist is likely to be much more complete than the typical voucher checklist.

Caveat emptor!

Procedure For Compiling The Checklist

In January 2010, I searched the Consortium of California Herbaria in a number of different ways, in order to compile as complete a list of vouchers as I could for this area.

The initial voucher list was obtained by searching for vouchers with coordinates in the rectangle bounded by latitude 33.878 to 34.048°, and longitude -116.737 to -116.540°. That search returned a whopping 1,733 vouchers.

I then augmented that search by first gathering additional Riverside County vouchers. A search for Whitewater in the locality field returned 1,876 vouchers; a search for White water returned 148 vouchers.

I made further Riverside County searches for each of these localities individually: Bonnie Bell; trout farm; Stills Landing; Catclaw Flat; Red dome; Banning; Morongo Pass; wind; and Painted hill. The search for wind was motivated by the windmill farms at the mouth of the Whitewater River, as well as the location Windy pass.

Duplicate vouchers were removed and San Bernardino County vouchers were placed in a separate file for future work, leaving a total of 5,556 unique vouchers.

Those vouchers were sorted on the locality field, and then each voucher was tagged as being in one of the areas given in Table 1, which also gives the number of vouchers in each area.

Table 1: Number of Vouchers by Area

Area# vouchers
Whitewater River Canyon1,642
Whitewater River Wash below Whitewater Canyon273
Area to west of Whitewater Post Office, including Banning, Cottonwood Canyon, Millard Canyon, Morongo Indian Reservation, etc.1,802
Snow Creek area of Banning Pass338
Morongo Canyon, Morongo Valley, Big Morongo Preserve, etc.371
Mission Creek, Morongo Wash, etc.343
Unknown Area24
Palm Desert, Indio area146
San Jacinto Mountains area (mostly locations along the Idyllwild - Banner Road)617
Total Vouchers5,556

In this page, I explicitly use the location Whitewater Post Office to mean the location at the mouth of the Whitewater River Canyon, just north of I-10.

The tagging was done quickly, only taking ~2-4 hours in total (which is an average of 1-2 seconds per voucher), so it was surely not 100% reliable, but was not too much lower than 100%. What made this possible to do in this amount of time was that many vouchers had identical localities, such as Banning.

Many of the vouchers themselves had ambiguous positions, such as north of Whitewater. This could mean:

Due to the goal of completeness, I tagged all vouchers saying north of Whitewater as being in Whitewater Canyon, which is almost surely wrong for some of the vouchers.

The tagging was done without looking at the coordinates of vouchers.

A good check on the reliability of the tagging is to plot the vouchers with coordinates for each tagged area, as shown in Figure 1:

Voucher Locations by Tagged Area

Expanded map near Whitewater Canyon:

Figure 1 shows that by and large the tagging resulted in vouchers be placed in the appropriate geographic areas.

Anomalies in the first version of Figure 1 were checked, and a handful of vouchers were found to be incorrectly tagged. The apparent anomalies in the version shown above are either due to very imprecise voucher coordinates, a few erroneous voucher coordinates, or ambiguous positions.

The initial checklist presented below uses only the 1,642 vouchers tagged as being in the Whitewater River Canyon Area, as defined above. The vouchers were compared to my southern California database, and all names were converted to the 1993 Jepson Manual versions as much as possible.

Vouchers of just the species were assigned to the appropriate subspecies whenever the subspecies was unambiguous. If it was ambiguous, vouchers of just the species name were retained along with any vouchers of subspecies that also existed.

This resulted in a total of 401 separate taxa given in the checklist below.

In February 2010, I gathered the remaining San Bernardino County vouchers by searching for vouchers with coordinates in the rectangle bounded by latitude 34.033 to 34.115°, and longitude -116.825 to -116.675°. That search returned 277 vouchers, of which 148 vouchers had been found in the previous searches.

I augmented that search to find vouchers without coordinates by doing separate searches for San Bernardino County vouchers containing in turn the words Catclaw, Whitewater, Raywood. Those searches found an additional 20 vouchers that were actually in San Bernardino County, and 58 vouchers that were actually in Riverside County, even though the county was recorded as San Bernardino County. All of those vouchers were added to the appropriate section of Whitewater Canyon.

A good idea of the distribution of vouchers for Whitewater Canyon is given by the vouchers with coordinates, shown in the following map:

The Whitewater Canyon watershed is outline in white. See also a larger map.

Also in February 2010, Michael Charters kindly sent me his draft checklist of for the Whitewater Preserve Area of Whitewater Canyon, and gave permission to include it in the checklist presented below. Michael's list is invaluable in assessing the completeness of the voucher checklist.

The approximate area surveyed by Michael Charters over several days is shown on this map.

See also pictures from some of Michael's field trips from February 2009; April 2009 Part One; and April 2009 Part Two.

The final checklist contains 515 taxa. Of these, 104 taxa are vouchered from the Upper Canyon; 185 taxa are from Michael Charters' survey in the Middle Canyon; and 411 taxa are vouchered from the Lower Canyon.

Checklist for Whitewater River Canyon

The Checklist is sorted first by category - ferns, dicots, and monocots - and then by family and scientific name. The Family and Scientific Name are from the Jepson Manual. An asterisk before the Common Name indicates a non-native taxon.

The next three columns specify where in Whitewater Canyon each taxon was recorded. The first column, titled UC, gives the number of vouchers in the Upper Canyon, the part in San Bernardino County. The second column, titled MC, records whether Michael Charters has the taxon on his list. (MC) can also conveniently be interpreted as the Middle Canyon). The third column, titled LC, gives the number of vouchers in the Lower Canyon, the part in Riverside County.

Some of Michael Charters' taxa could not be fully identified during his survey; those are marked with a ~ or ? in that column.

The column SnBr indicates whether that taxon is in the SnBr Bootleg Flora from Krantz and Sanders, circa 2003. The column contains a code as follows:

1taxa in the SnBr flora with the same taxon name
2taxa that have had names converted to the Jepson Manual system
4taxa with SnBr or TR in the Jepson Manual geographic ranges
5taxa included in the SnBr flora from Munz or other non-Jepson Manual report
7taxa that have had subspecies assigned using the Jepson Manual geographic ranges
9taxa that are questionably present at SnBr

The final column, titled SoCal, indicates the number of lists for which each taxa is present in my database for southern California. This indicates how widespread each taxon is in southern California. Species with low numbers may be endemic to this area, or they may be misdetermined vouchers. Species with large numbers are either widespread and abundant in southern California, or they are abundant in some areas that are heavily over-represented in my database, such as the Santa Rosa Plateau, the San Jacinto Mountains, and the Borrego Desert.

Note also that, for species that have several subspecies, some floras and vouchers are determined only to species, and hence sometimes the abundance numbers are split between the species and subspecies. For example, Brickellia arguta is found in 7 lists in my database, its ssp. arguta is found in 14 lists, and its ssp. odontolepis is found in 6 lists. Thus the species, including all its subspecies, is found in a total of 27 lists, significantly more than the 7 that record just the species.

These last two columns help the user judge whether a vouchered taxon might have a questionable determination.

As noted above, vouchers of just the species were assigned to the appropriate subspecies whenever the subspecies was unambiguous. If it was ambiguous, vouchers of just the species name were retained along with any vouchers of subspecies that also existed. Hence this list sometimes contains vouchers of the species alongside vouchers of subspecies.

This is a working list, about which I make no guarantees at all. Use at your own risk!

A rough estimate of the minimum incompleteness of the voucher checklist can be made from Michael Charters' survey. Of Michael's 182 securely-identified taxa, 138 are present in the voucher checklists. This implies that the voucher checklist is 138 / 182 = 76% complete; i.e., the voucher checklist is missing 24% of the species. This is a minimum estimate of the incompleteness, since as can be seen from the distribution of vouchers, large areas of Whitewater Canyon have not been surveyed.

This implies that this checklist of 515 taxa is missing at least 162 taxa, and should contain at least 677 taxa.

That, of course, is one reason why a Bioblitz is going to be held here, to try to voucher some of those missing taxa.

Version for printing, without lines and other text on this page: html (16 pages) or pdf Clickbook booklet (4 double-sided pages). (See printing instructions for an explanation of these options)

See Later Checklist Incorporating Further Survey Results for a better, more complete checklist which adds further survey results to the checklist presented below.

#JM FamilyScientific Name(*)Common NameUCMCLCSnBrSoCal
1BlechnaceaeWoodwardia fimbriatagiant chain fern  1135
2DryopteridaceaeAthyrium filix-femina var. cyclosorumsubarctic lady-fern2  121
3EquisetaceaeEquisetum hyemale ssp. affinehorsetail1 2138
4EquisetaceaeEquisetum laevigatumsmooth scouring rush  2138
5PteridaceaeCheilanthes covilleibeady lipfern115160
6PteridaceaeCheilanthes parryiwoolly lipfern  4163
7PteridaceaeCheilanthes viscidasticky lipfern  11124
8PteridaceaeNotholaena californicaCalifornia cloak fern  29429
9PteridaceaePellaea andromedifoliacoffee fern 14172
10PteridaceaePellaea mucronata var. mucronatabird's-foot fern 14195
11PteridaceaePentagramma triangularisgoldback fern3  110
12PteridaceaePentagramma triangularis ssp. triangularisgoldback fern 12 74
13SelaginellaceaeSelaginella bigeloviiBigelow's spike-moss 111170
14CupressaceaeCalocedrus decurrensincense-cedar 1 169
15CupressaceaeJuniperus californicaCalifornia juniper  1154
16EphedraceaeEphedra asperaMormon tea  1 31
17EphedraceaeEphedra californicadesert tea3123137
18AmaranthaceaeAmaranthus albus*tumble pigweed1  162
19AnacardiaceaeRhus ovatasugar bush115198
20ApiaceaeHydrocotyle umbellatamarsh-pennywort  2113
21ApiaceaeTauschia argutasouthern tauschia  2154
22AsclepiadaceaeAsclepias subulatarush milkweed  1125
23AsclepiadaceaeSarcostemma cynanchoides ssp. hartwegiiclimbing milkweed  5149
24AsteraceaeAcamptopappus sphaerocephalusgoldenhead  818
25AsteraceaeAcamptopappus sphaerocephalus var. hirtellushairy goldenhead  1 1
26AsteraceaeAcamptopappus sphaerocephalus var. sphaerocephalusgoldenhead 113 13
27AsteraceaeAmbrosia acanthicarpabur-ragweed  3166
28AsteraceaeAmbrosia dumosaburroweed 17190
29AsteraceaeAntennaria rosearosy everlasting, pussytoes  1116
30AsteraceaeArtemisia californicaCalifornia sagebrush 141100
31AsteraceaeArtemisia douglasianamugwort1  186
32AsteraceaeArtemisia dracunculuswild tarragon 1 1117
33AsteraceaeAtrichoseris platyphyllagravel-ghost  1 6
34AsteraceaeBaccharis brachyphyllashort-leaved baccharis  7123
35AsteraceaeBaccharis emoryiEmory's baccharis  6134
36AsteraceaeBaccharis salicifoliamule fat2191117
37AsteraceaeBaccharis sergiloidesdesert baccharis 116142
38AsteraceaeBaileya pauciradiataColorado Desert marigold  1 20
39AsteraceaeBebbia juncea var. asperasweetbush11101102
40AsteraceaeBrickellia argutaCalifornia spear-leaved brickellia  617
41AsteraceaeBrickellia desertorumdesert brickellia ?7136
42AsteraceaeCalycoseris parryiyellow tackstem  4123
43AsteraceaeChaenactis fremontiiFremont pincushion2125149
44AsteraceaeChaenactis glabriusculayellow pincushion 1 113
45AsteraceaeChaenactis glabriuscula var. glabriusculayellow pincushion  5 56
46AsteraceaeChaenactis stevioidesdesert pincushion  1127
47AsteraceaeChamomilla suaveolens*pineapple weed 1 163
48AsteraceaeChrysothamnus paniculatusblackbanded rabbitbrush1113127
49AsteraceaeChrysothamnus teretifoliusneedle-leaved rabbitbrush  118
50AsteraceaeCoreopsis bigeloviiBigelow's coreopsis 15113
51AsteraceaeCoreopsis californica var. californicaCalifornia coreopsis  3121
52AsteraceaeDicoria canescensdesert dicoria  11127
53AsteraceaeEncelia actoniActon encelia 13129
54AsteraceaeEncelia farinosabrittlebush 1101108
55AsteraceaeEricameria brachylepisboundary goldenbush  1 34
56AsteraceaeEricameria cuneata var. spathulatawide-leaved rock goldenbush  2 23
57AsteraceaeEricameria laricifoliaturpentine-brush  1 2
58AsteraceaeEricameria linearifolianarrowleaf goldenbush 14151
59AsteraceaeEricameria pinifoliapine goldenbush1  139
60AsteraceaeEriophyllum confertiflorum var. confertiflorumgolden yarrow 132148
61AsteraceaeEriophyllum multicaulebranched woolly sunflower  2113
62AsteraceaeEriophyllum wallaceiWallace's woolly daisy2113143
63AsteraceaeFilago californicaCalifornia filago 113191
64AsteraceaeFilago gallica*narrowleaf filago  1186
65AsteraceaeGnaphalium bicolorbicolored everlasting  1184
66AsteraceaeGnaphalium luteo-album*common cudweed 12161
67AsteraceaeGnaphalium palustrewestern marsh cudweed  1149
68AsteraceaeGutierrezia californicaCalifornia matchweed  1139
69AsteraceaeHeliomeris multiflora var. nevadensisgolden-eye  1 1
70AsteraceaeHeterotheca grandifloratelegraph weed 1 192
71AsteraceaeHeterotheca sessiliflora ssp. fastigiataerect goldenaster  8716
72AsteraceaeHieracium albiflorumwhite hawkweed1  121
73AsteraceaeHymenoclea salsolacheesebush 111111
74AsteraceaeHymenoclea salsola var. patulacheesebush  1 2
75AsteraceaeHymenoclea salsola var. pentalepischeesebush  1 2
76AsteraceaeHymenoclea salsola var. salsolacheesebush  2 76
77AsteraceaeHypochaeris glabra*smooth cat's ear  1189
78AsteraceaeIsocoma acradeniaalkali goldenbush 1  3
79AsteraceaeIsocoma acradenia var. eremophilasolitary-leaved alkali goldenbush  11131
80AsteraceaeLactuca serriola*prickly lettuce 1 1105
81AsteraceaeLasthenia californicagoldfields 12163
82AsteraceaeLasthenia coronariasouthern goldfields 17125
83AsteraceaeLayia glandulosawhite tidy-tips 11128
84AsteraceaeLayia platyglossacommon tidy-tips  2 36
85AsteraceaeLepidospartum squamatumscale-broom1122147
86AsteraceaeLessingia filaginifolia var. filaginifoliaCalifornia-aster1  2142
87AsteraceaeMalacothrix glabratadesert dandelion 15155
88AsteraceaeMalacothrix saxatiliscliff-aster  1 9
89AsteraceaeMonoptilon bellioidesdesert star  3941
90AsteraceaePalafoxia arida var. aridadesert needle1115 53
91AsteraceaePentachaeta aureagolden daisy  1124
92AsteraceaePeucephyllum schottiipygmy-cedar 17127
93AsteraceaePicris echioides*bristly ox-tongue ~ 140
94AsteraceaePleurocoronis plurisetaarrow-leaf  1951
95AsteraceaePluchea sericeaarrow-weed  3147
96AsteraceaePsathyrotes ramosissimaturtleback  1 18
97AsteraceaePulicaria paludosa*Spanish false-fleabane  8114
98AsteraceaeRafinesquia californicaCalifornia chicory 13180
99AsteraceaeRafinesquia neomexicanadesert chicory  12158
100AsteraceaeSenecio californicusCalifornia groundsel 13133
101AsteraceaeSenecio flaccidus var. monoensisMono ragwort  1 17
102AsteraceaeSenecio ionophyllusTehachapi ragwort2 1112
103AsteraceaeSenecio vulgaris*common groundsel  1166
104AsteraceaeSonchus asper ssp. asper*prickly sow thistle 1 170
105AsteraceaeSonchus oleraceus*sow thistle 1 1109
106AsteraceaeStephanomeria exigua ssp. exiguaslender wreathplant  5 27
107AsteraceaeStephanomeria pauciflora var. pauciflorawire-lettuce 13 80
108AsteraceaeStephanomeria spinosathorny skeleton-plant1  15
109AsteraceaeStylocline gnaphaloideseverlasting nest-straw 17160
110AsteraceaeTetradymia canescensspineless horsebrush1  114
111AsteraceaeTetradymia comosacotton-thorn  1124
112AsteraceaeTrixis californica var. californicaCalifornia trixis  1 66
113AsteraceaeUropappus lindleyisilver puffs 1 183
114AsteraceaeViguiera parishiiParish's viguiera 118169
115AsteraceaeXanthium strumariumcocklebur1 1168
116BetulaceaeAlnus rhombifoliawhite alder114162
117BignoniaceaeChilopsis linearis ssp. arcuatadesert-willow 19153
118BoraginaceaeAmsinckia menziesiifiddleneck  3 13
119BoraginaceaeAmsinckia menziesii var. intermediacommon fiddleneck 12181
120BoraginaceaeAmsinckia tessellata var. tessellatabristly fiddleneck 11 29
121BoraginaceaeCryptantha angustifolianarrow-leaved cryptantha 13950
122BoraginaceaeCryptantha barbigerabearded cryptantha 115157
123BoraginaceaeCryptantha corollataCoast Range cryptantha1   4
124BoraginaceaeCryptantha decipiensgravel cryptantha  2218
125BoraginaceaeCryptantha dumetorumbush-loving cryptantha  116
126BoraginaceaeCryptantha intermediapopcorn flower 114196
127BoraginaceaeCryptantha micranthapurple-root cryptantha119166
128BoraginaceaeCryptantha muricataprickly cryptantha  2167
129BoraginaceaeCryptantha racemosabushy cryptantha  5129
130BoraginaceaeCryptantha utahensisscented cryptantha  6110
131BoraginaceaePectocarya heterocarpachuckwalla pectocarya 1 136
132BoraginaceaePectocarya linearis ssp. feroculaslender combseed  3241
133BoraginaceaePectocarya penicillatacombseed  1143
134BoraginaceaePectocarya peninsularisBaja pectocarya  1 5
135BoraginaceaePectocarya platycarpabroad-fruited combseed 1 121
136BoraginaceaePectocarya recurvatacurvenut combseed  2142
137BoraginaceaeTiquilia plicataplicate coldenia  1131
138BrassicaceaeArabis breweri var. pecuniariaSan Bernardino rock cress1  15
139BrassicaceaeArabis perennansperennial rock-cress ~1537
140BrassicaceaeArabis pulchrabeautiful rock-cress  1115
141BrassicaceaeBarbarea orthoceraswinter cress1  127
142BrassicaceaeBrassica tournefortii*Asian mustard 14181
143BrassicaceaeCapsella bursa-pastoris*shepherd's purse 1 159
144BrassicaceaeCaulanthus heterophyllus var. pseudosimulansslender-pod jewelflower  1 12
145BrassicaceaeDescurainia pinnata ssp. glabrasmooth western tansy-mustard  1 36
146BrassicaceaeDithyrea californicaspectacle-pod  14137
147BrassicaceaeErysimum capitatum ssp. capitatumwestern wallflower1  296
148BrassicaceaeGuillenia lasiophyllaCalifornia mustard  1151
149BrassicaceaeHirschfeldia incana*shortpod mustard 1 1115
150BrassicaceaeRorippa nasturtium-aquaticumwater cress 14166
151BrassicaceaeSisymbrium irio*London rocket 1 177
152BrassicaceaeStreptanthella longirostrislongbeak streptanthella  11122
153BrassicaceaeThysanocarpus curvipesfringe-pod 11167
154BrassicaceaeThysanocarpus laciniatuslace-pod  3138
155BrassicaceaeTropidocarpum gracileslender tropidocarpum  2124
156CactaceaeEchinocereus engelmanniiEngelmann's hedgehog cactus112263
157CactaceaeFerocactus cylindraceusCalifornia barrel cactus  3172
158CactaceaeMammillaria dioicaCalifornia fish-hook cactus  1 48
159CactaceaeMammillaria tetrancistrafish-hook cactus  3124
160CactaceaeOpuntia basilaris var. basilarisbeavertail cactus112183
161CactaceaeOpuntia bigeloviiteddy-bear cholla  1158
162CactaceaeOpuntia echinocarpasilver cholla  1146
163CactaceaeOpuntia engelmannii var. engelmanniiEngelmann prickly-pear1   6
164CactaceaeOpuntia ganderiGander's cholla 1  61
165CactaceaeOpuntia phaeacanthadesert prickly-pear  1119
166CactaceaeOpuntia vaseyiVasey's prickly-pear 1 154
167CampanulaceaeNemacladus longiflorus var. breviflorusthread plant  1211
168CampanulaceaeNemacladus rubescensdesert nemacladus  1122
169CapparaceaeIsomeris arboreabladderpod 19156
170CaprifoliaceaeLonicera interruptachaparral honeysuckle  1117
171CaryophyllaceaeAchyronychia cooperifrost mat  2 37
172CaryophyllaceaeLoeflingia squarrosaspreading loeflingia  318
173CaryophyllaceaeMinuartia douglasiiDouglas' sandwort3 1127
174CaryophyllaceaeSilene verecunda ssp. platyotawhite catch-fly1  174
175ChenopodiaceaeAtriplex canescens ssp. canescensfour-wing saltbush 13243
176ChenopodiaceaeChenopodium ambrosioides*Mexican tea  1143
177ChenopodiaceaeChenopodium berlandieripit-seed goosefoot  2231
178ChenopodiaceaeGrayia spinosahop-sage  314
179ChenopodiaceaeSalsola paulsenii*Paulsen's Russian thistle  1110
180CrassulaceaeDudleya lanceolatalanceleaf dudleya 14168
181CrassulaceaeDudleya saxosa ssp. aloidesdesert dudleya 118141
182CrassulaceaeSedum spathulifoliumyellow stonecrop  1212
183CrossosomataceaeCrossosoma bigeloviirock crossosoma 124123
184CucurbitaceaeCucurbita digitatafinger-leaved gourd  2 5
185CucurbitaceaeMarah macrocarpus var. macrocarpuswild-cucumber 121115
186CuscutaceaeCuscuta californicaCalifornia dodder  1 19
187EricaceaeArctostaphylos glaucabigberry manzanita  1163
188EricaceaeArctostaphylos patulagreen-leaf manzanita2  255
189EricaceaePyrola pictawhite-veined wintergreen1 1130
190EuphorbiaceaeBernardia myricifoliawestern bernardia  1225
191EuphorbiaceaeChamaesyce polycarpasmall-seeded spurge11112117
192EuphorbiaceaeCroton californicusCalifornia croton1113164
193EuphorbiaceaeDitaxis lanceolatanarrowleaf ditaxis  1168
194EuphorbiaceaeDitaxis serrataYuma ditaxis  3 10
195EuphorbiaceaeEuphorbia miseracliff spurge  7110
196EuphorbiaceaeEuphorbia palmeriwoodland spurge1  131
197EuphorbiaceaeEuphorbia peplus*petty spurge  1139
198EuphorbiaceaeStillingia linearifolialinear-leaved stillingia 114144
199EuphorbiaceaeStillingia spinulosaannual stillingia  1 21
200FabaceaeAcacia greggiicatclaw 11181
201FabaceaeAstragalus didymocarpusdwarf white milk-vetch  114
202FabaceaeAstragalus didymocarpus var. dispermusdwarf white milk-vetch1   23
203FabaceaeAstragalus douglasiiJacumba milk-vetch1  15
204FabaceaeAstragalus douglasii var. douglasiiJacumba milk-vetch 1  5
205FabaceaeAstragalus douglasii var. parishiiParish' Jacumba milk-vetch2   26
206FabaceaeAstragalus lentiginosus var. coachellaeCoachella Valley milk-vetch  1216
207FabaceaeAstragalus tricarinatustriple-ribbed milk-vetch411214
208FabaceaeLotus argophyllus var. argophyllussouthern California silver-lotus1111246
209FabaceaeLotus crassifolius var. crassifoliusbroad-leaved lotus1  240
210FabaceaeLotus heermannii var. heermanniisilky lotus 16135
211FabaceaeLotus nevadensis var. davidsoniiDavidson's lotus1  118
212FabaceaeLotus procumbens var. procumbenssilky California broom  314
213FabaceaeLotus scoparius var. brevialatusshort-winged deerweed 111179
214FabaceaeLotus strigosusstrigose lotus 1111130
215FabaceaeLotus wrangelianusCalifornia lotus  1130
216FabaceaeLupinus arizonicusArizona lupine  3157
217FabaceaeLupinus bicolordwarf lupine 12197
218FabaceaeLupinus concinnusbajada lupine 13190
219FabaceaeLupinus excubitus var. halliibush lupine 11131
220FabaceaeLupinus hirsutissimusstinging lupine 15170
221FabaceaeLupinus latifoliusbroad-leaf lupine1  110
222FabaceaeLupinus microcarpus var. densifloruschick lupine  2120
223FabaceaeLupinus shockleyidesert lupine  4 9
224FabaceaeLupinus sparsiflorusCoulter's lupine 116152
225FabaceaeLupinus truncatuscollar lupine 16175
226FabaceaeMedicago polymorpha*California burclover 1 194
227FabaceaeMelilotus indicus*sourclover 1 188
228FabaceaeProsopis glandulosa var. torreyanahoney mesquite 13 58
229FabaceaeProsopis pubescensscrew-bean mesquite  1 20
230FabaceaePsorothamnus arborescens var. simplicifoliusCalifornia indigo-bush  1116
231FabaceaePsorothamnus emoryiEmory's indigo-bush  2 46
232FabaceaePsorothamnus schottiiindigo bush  1 79
233FabaceaePsorothamnus spinosussmoke tree  1 46
234FabaceaeRobinia pseudoacacia*black locust  1123
235FabaceaeTrifolium hirtum*rose clover  1130
236FagaceaeQuercus cornelius-mulleridesert scrub oak1 1131
237GentianaceaeCentaurium venustumcanchalagua  2158
238GentianaceaeEustoma exaltatumcatchfly prairie-gentian  2117
239GentianaceaeSwertia neglectapine green-gentian1  18
240GeraniaceaeErodium botrys*long-beaked filaree 1 156
241GeraniaceaeErodium cicutarium*redstem filaree 111166
242GrossulariaceaeRibes nevadensemountain pink currant1  160
243GrossulariaceaeRibes roezlii var. roezliiSierra gooseberry1  153
244HydrophyllaceaeEmmenanthe penduliflora var. penduliflorawhispering bells 19266
245HydrophyllaceaeEriodictyon crassifolium var. crassifoliumthick-leaved yerba santa1 1 38
246HydrophyllaceaeEriodictyon trichocalyx var. trichocalyxsmoothleaf yerba santa 17122
247HydrophyllaceaeEucrypta chrysanthemifolia var. bipinnatifidaeucrypta  1 22
248HydrophyllaceaeNama demissum var. demissumpurple mat 113135
249HydrophyllaceaeNemophila menziesiibaby blue eyes 1  23
250HydrophyllaceaePhacelia brachylobashort-lobed phacelia 1 138
251HydrophyllaceaePhacelia campanulariadesert bluebells  16110
252HydrophyllaceaePhacelia campanularia ssp. campanulariadesert bluebells 111 20
253HydrophyllaceaePhacelia campanularia ssp. vasiformisdesert bluebells 1  4
254HydrophyllaceaePhacelia cicutaria var. hispidacaterpillar phacelia 1 174
255HydrophyllaceaePhacelia crenulata var. minutifloralittle-flowered heliotrope phacelia  1 24
256HydrophyllaceaePhacelia cryptanthalimestone phacelia  2119
257HydrophyllaceaePhacelia distanscommon phacelia 1121112
258HydrophyllaceaePhacelia ivesianaIves' phacelia ~  8
259HydrophyllaceaePhacelia minorwild canterbury bells 18173
260HydrophyllaceaePhacelia parryiParry's phacelia  3141
261HydrophyllaceaePholistoma membranaceumwhite fiesta flower 111145
262HydrophyllaceaeTricardia watsoniithree-hearts  213
263KrameriaceaeKrameria grayiwhite rhatany  10170
264LamiaceaeMonardella odoratissimamountain-monardella1   3
265LamiaceaeSalvia apianawhite sage 181118
266LamiaceaeSalvia columbariaechia 161132
267LamiaceaeSalvia vaseyiVasey's sage  1145
268LamiaceaeStachys albenscobwebby hedge-nettle  1124
269LinaceaeLinum usitatissimum*common flax  219
270LoasaceaeMentzelia involucratabracted blazing star  16 45
271LoasaceaeMentzelia laevicaulisgiant blazing star  3121
272LoasaceaeMentzelia tricuspisthree-pointed blazing star  1 2
273LoasaceaeMentzelia veatchianaVeatch's blazing star1~ 130
274LoasaceaePetalonyx thurberi ssp. thurberiThurber's sandpaper-plant1 3 43
275MalvaceaeEremalche exiliswhite mallow  2127
276MalvaceaeMalva parviflora*cheeseweed 1 170
277MalvaceaeSphaeralcea ambiguaapricot mallow 11114
278MalvaceaeSphaeralcea ambigua var. ambiguaapricot mallow  1 48
279MalvaceaeSphaeralcea ambigua var. rosacearosy apricot mallow  1 21
280NyctaginaceaeAbronia villosahairy sand verbena  6112
281NyctaginaceaeAbronia villosa var. auritahairy sand verbena  3 18
282NyctaginaceaeAbronia villosa var. villosahairy sand-verbena  1 31
283NyctaginaceaeBoerhavia coccineascarlet spiderling  1121
284NyctaginaceaeBoerhavia triquetraslender spiderling  1110
285NyctaginaceaeMirabilis bigeloviiBigelow's desert four-o'clock  116
286NyctaginaceaeMirabilis bigelovii var. bigeloviiBigelow's desert four-o'clock  1 18
287NyctaginaceaeMirabilis bigelovii var. retrorsaBigelow's desert four-o'clock 113 61
288NyctaginaceaeMirabilis californicaCalifornia four o'clock  6181
289OleaceaeFraxinus velutinavelvet ash  1142
290OnagraceaeCamissonia bistortasouthern suncup 15156
291OnagraceaeCamissonia boothii ssp. desertorumBooth's evening primrose  113
292OnagraceaeCamissonia californicaCalifornia suncup 181131
293OnagraceaeCamissonia cardiophyllaheartleaf sun-cup  119
294OnagraceaeCamissonia claviformis ssp. aurantiacabrown-eyed primrose 110 20
295OnagraceaeCamissonia confusaSan Bernardino sun-cup  6123
296OnagraceaeCamissonia hirtellafield sun-cup  1133
297OnagraceaeCamissonia pallidapale-yellow sun-cup11518
298OnagraceaeCamissonia pallida ssp. halliiHall's sun-cup  5 7
299OnagraceaeCamissonia pallida ssp. pallidapale sun-cup  15 38
300OnagraceaeEpilobium canum ssp. latifoliummountain California-fuchsia  41122
301OnagraceaeEpilobium ciliatumwillowherb2   40
302OnagraceaeEpilobium ciliatum ssp. ciliatumwillowherb 11162
303OnagraceaeGayophytum diffusumgroundsmoke1   4
304OnagraceaeOenothera deltoides ssp. deltoidesdune primrose  3 26
305OnagraceaeOenothera elata ssp. hookeriHooker's evening-primrose 1  8
306PapaveraceaeDendromecon rigidabush poppy 11141
307PapaveraceaeDicentra chrysanthagolden ear drops 1 142
308PapaveraceaeEschscholzia californicaCalifornia poppy 1 194
309PapaveraceaeEschscholzia minutiflora ssp. minutiflorasmall-flowered poppy  4242
310PapaveraceaeEschscholzia parishiiParish's poppy 114153
311PapaveraceaePlatystemon californicuscream cups 12138
312PlantaginaceaePlantago erectaCalifornia plantain  1156
313PlantaginaceaePlantago major*common plantain  1150
314PlantaginaceaePlantago ovatadesert plantain  5169
315PlantaginaceaePlantago patagonicaPatagonia plantain 12137
316PlatanaceaePlatanus racemosawestern sycamore 1 190
317PolemoniaceaeEriastrum diffusumminiature woolly-star  1116
318PolemoniaceaeEriastrum eremicum ssp. eremicumdesert woolly-star  6246
319PolemoniaceaeEriastrum sapphirinumsapphire woolly-star  2153
320PolemoniaceaeGilia angelensisangel's gilia  4156
321PolemoniaceaeGilia australissouthern gilia  4129
322PolemoniaceaeGilia capitata ssp. abrotanifoliaglobe gilia 18154
323PolemoniaceaeGilia maculataLittle San Bernardino Mtns. gilia  812
324PolemoniaceaeGilia ochroleuca ssp. bizonatavolcanic gilia  115
325PolemoniaceaeGilia ochroleuca ssp. exilisvolcanic gilia 16129
326PolemoniaceaeGilia ochroleuca ssp. ochroleucavolcanic gilia1  14
327PolemoniaceaeGilia splendens ssp. splendenssplendid gilia 12127
328PolemoniaceaeGilia stellatastar gilia  2144
329PolemoniaceaeLangloisia setosissima ssp. setosissimabristly langloisia  1 20
330PolemoniaceaeLinanthus bigeloviiBigelow's linanthus  2116
331PolemoniaceaeLinanthus dianthiflorusground pink 17151
332PolemoniaceaeLinanthus lemmoniiLemmon's linanthus  3125
333PolemoniaceaeLinanthus liniflorusflax-flowered linanthus  2224
334PolemoniaceaeLinanthus parryaesand-blossoms  114
335PolemoniaceaeLinanthus parvifloruscommon linanthus  1132
336PolemoniaceaeLoeseliastrum matthewsiidesert calico  2126
337PolemoniaceaeLoeseliastrum schottiiSchott's calico  6138
338PolygonaceaeChorizanthe brevicornu var. brevicornubrittle spineflower 18161
339PolygonaceaeChorizanthe parryi var. parryiParry's spineflower  618
340PolygonaceaeChorizanthe uniaristataone-awn spineflower  1 1
341PolygonaceaeChorizanthe watsoniiWatson's spineflower  217
342PolygonaceaeChorizanthe xanti var. leucothecawhite-bracted spineflower2 13210
343PolygonaceaeDodecahema leptocerasslender-horned spineflower  116
344PolygonaceaeEriogonum davidsoniiDavidson's buckwheat  1154
345PolygonaceaeEriogonum elongatum var. elongatumlong-stemmed buckwheat114184
346PolygonaceaeEriogonum fasciculatum var. polifoliumCalifornia buckwheat1171101
347PolygonaceaeEriogonum gracileslender buckwheat  1 14
348PolygonaceaeEriogonum gracile var. gracileslender buckwheat  1133
349PolygonaceaeEriogonum gracile var. incultumslender buckwheat  1 17
350PolygonaceaeEriogonum inflatumdesert trumpet 18167
351PolygonaceaeEriogonum nudum var. pauciflorumnaked buckwheat1  165
352PolygonaceaeEriogonum plumatellayucca buckwheat ~ 114
353PolygonaceaeEriogonum pusillumyellow-turbans  18111
354PolygonaceaeEriogonum reniformekidney-leaf buckwheat  2120
355PolygonaceaeEriogonum saxatilerock buckwheat  1136
356PolygonaceaeEriogonum thomasiiThomas' buckwheat  12149
357PolygonaceaeEriogonum thurberiThurber's buckwheat  7123
358PolygonaceaeEriogonum trichopeslittle desert trumpet  2919
359PolygonaceaeEriogonum wrightiiWright's buckwheat  1 5
360PolygonaceaeEriogonum wrightii var. nodosumWright's buckwheat  14139
361PolygonaceaeEriogonum wrightii var. subscaposumWright's buckwheat1 1153
362PolygonaceaeLastarriaea coriacealeather spineflower  2 30
363PolygonaceaeNemacaulis denudata var. gracilisslender woolly-heads  2 8
364PolygonaceaePolygonum lapathifoliumwillow weed  3127
365PolygonaceaePolygonum punctatumpunctate smartweed  1115
366PolygonaceaePterostegia drymarioidesthreadstem 151120
367PortulacaceaeCalandrinia ciliatared maids 1 169
368PortulacaceaeCalyptridium monandrumsand cress114177
369PortulacaceaeClaytonia exigualittle spring beauty 1  3
370PortulacaceaeClaytonia perfoliataminer's lettuce ~ 131
371PrimulaceaeAnagallis arvensis*scarlet pimpernel 11187
372RanunculaceaeClematis ligusticifoliavirgin's bower  1140
373RanunculaceaeClematis paucifloravirgin's bower  1943
374RanunculaceaeDelphinium glaucumSierra larkspur1  15
375RanunculaceaeDelphinium parishii ssp. parishiiParish's larkspur  5111
376RanunculaceaeDelphinium parishii ssp. subglobosumintermediate larkspur 1  32
377RanunculaceaeRanunculus eschscholtzii var. oxynotusEschscholtz's buttercup1  17
378RanunculaceaeThalictrum fendleriFendler's meadow-rue2 1 14
379ResedaceaeOligomeris linifolialineleaf whitepuff  1 36
380RhamnaceaeCeanothus greggii var. perplexanscupped-leaf ceanothus 12144
381RhamnaceaeCeanothus leucodermischaparral whitethorn  1166
382RhamnaceaeRhamnus californicaCalifornia coffeeberry 1  35
383RhamnaceaeRhamnus ilicifoliahollyleaf redberry 131120
384RhamnaceaeRhamnus tomentella ssp. cuspidataSierra hoary coffeeberry  1 14
385RhamnaceaeZiziphus parryi var. parryilotebush218133
386RosaceaeAdenostoma fasciculatumchamise1111109
387RosaceaePotentilla glandulosa ssp. nevadensisNevada cinquefoil1  128
388RosaceaePrunus emarginatabitter cherry1  148
389RosaceaePrunus ilicifolia ssp. ilicifoliahollyleaf cherry  1261
390RosaceaePurshia tridentata var. glandulosadesert bitterbrush 11117
391RosaceaeRubus leucodermiswhite-bark raspberry1   11
392RosaceaeRubus parviflorusthimbleberry1  139
393RubiaceaeGalium angustifolium ssp. angustifoliumnarrowleaf bedstraw 16 114
394RubiaceaeGalium jepsoniiJepson's bedstraw  154
395RutaceaeThamnosma montanaturpentine broom  14128
396SalicaceaePopulus fremontii ssp. fremontiiFremont cottonwood115263
397SalicaceaeSalix exiguanarrowleaf willow 17163
398SalicaceaeSalix laevigatared willow  1180
399SalicaceaeSalix lemmoniiLemmon's willow1  15
400SaxifragaceaeHeuchera alpestrisParish's alumroot1   3
401ScrophulariaceaeAntirrhinum coulterianumCoulter's snapdragon 15153
402ScrophulariaceaeAntirrhinum nuttallianum ssp. nuttallianumpurple snapdragon  1147
403ScrophulariaceaeCastilleja angustifolianorthwestern paintbrush  116
404ScrophulariaceaeCastilleja exserta ssp. exsertapurple owl's-clover 12251
405ScrophulariaceaeCastilleja foliolosawoolly Indian paintbrush214157
406ScrophulariaceaeCastilleja minor ssp. spiralislesser paintbrush  4143
407ScrophulariaceaeCollinsia concolorsouthern Chinese houses 15142
408ScrophulariaceaeCordylanthus rigidus ssp. setigerusbristly bird's beak1 1191
409ScrophulariaceaeKeckiella antirrhinoides var. antirrhinoideschaparral beard-tongue 112134
410ScrophulariaceaeLinaria bipartita*split-lip toadflax  1 6
411ScrophulariaceaeLinaria maroccana*Moroccan toad-flax1  18
412ScrophulariaceaeMimulus aurantiacusbush monkeyflower 1 1115
413ScrophulariaceaeMimulus bigeloviiBigelow's monkeyflower 1 16
414ScrophulariaceaeMimulus cardinalisscarlet monkeyflower211176
415ScrophulariaceaeMimulus floribundusfloriferous monkeyflower1  148
416ScrophulariaceaeMimulus guttatuscommon monkeyflower 13181
417ScrophulariaceaeMimulus johnstoniiJohnston's monkeyflower  2110
418ScrophulariaceaeMimulus parishiiParish's monkeyflower  4117
419ScrophulariaceaeMimulus pilosusfalse monkeyflower2 1161
420ScrophulariaceaePenstemon caesiusSan Bernardino beardtongue1  110
421ScrophulariaceaeScrophularia californica ssp. floribundaCalifornia bee plant 13165
422ScrophulariaceaeVeronica americanaAmerican speedwell  1111
423ScrophulariaceaeVeronica anagallis-aquatica*water speedwell 12141
424SimmondsiaceaeSimmondsia chinensisjojoba  1168
425SolanaceaeDatura wrightiisacred datura 13192
426SolanaceaeLycium andersoniiAnderson's desert-thorn  4146
427SolanaceaeNicotiana glauca*tree tobacco 1 175
428SolanaceaePhysalis crassifoliathick-leaved ground cherry 14166
429SolanaceaeSolanum douglasiiwhite nightshade 14170
430SolanaceaeSolanum xantipurple nightshade 1 169
431TamaricaceaeTamarix ramosissima*saltcedar113138
432UrticaceaeParietaria hespera var. californicaCalifornia pellitory  1 16
433UrticaceaeParietaria hespera var. hesperapellitory  1 34
434UrticaceaeUrtica dioica ssp. holosericeastinging nettle 1 169
435ViscaceaePhoradendron californicumdesert mistletoe 19175
436ViscaceaePhoradendron densumdense mistletoe1 1124
437ViscaceaePhoradendron villosumoak mistletoe 11159
438VitaceaeVitis girdianawild grape 12153
439ZygophyllaceaeLarrea tridentatacreosote bush 18197
440ZygophyllaceaeTribulus terrestris*puncture-vine 1 145
441ArecaceaeWashingtonia filiferaCalifornia fan palm 12140
442CyperaceaeCarex almasturdy sedge1  119
443CyperaceaeCarex multicaulisforest sedge1  120
444CyperaceaeCarex rossiiRoss' sedge1  120
445CyperaceaeCarex sentaswamp sedge2  161
446CyperaceaeCyperus nigerblack flatsedge  1110
447CyperaceaeCyperus parishiiParish's flatsedge  117
448CyperaceaeCyperus squarrosusbearded flatsedge  1115
449CyperaceaeEleocharis geniculatabent spikerush  5111
450CyperaceaeEleocharis montevidensissand spikerush  2129
451CyperaceaeEleocharis radicanscreeping spikerush  1 7
452CyperaceaeLipocarpha micranthasmall-flowered hemicarpha  213
453JuncaceaeJuncus bufoniustoad rush  1122
454JuncaceaeJuncus mexicanusMexican rush  1185
455JuncaceaeJuncus rugulosuswrinkled rush1 3141
456JuncaceaeJuncus saximontanusRocky Mountain rush2 116
457JuncaceaeJuncus xiphioidesiris-leaved rush1 2148
458LiliaceaeAllium fimbriatum var. fimbriatumfringed onion 11118
459LiliaceaeAllium peninsulare var. peninsulareMexicali onion 12 11
460LiliaceaeDichelostemma capitatum ssp. capitatumblue dicks 112120
461LiliaceaeLilium parryilemon lily1  149
462LiliaceaeMuilla maritimamuilla  1155
463LiliaceaeNolina parryiParry's nolina2  134
464LiliaceaeYucca schidigeraMohave yucca 13156
465LiliaceaeYucca whippleichaparral yucca 1 1108
466LiliaceaeZigadenus brevibracteatusdesert death-camas  116
467OrchidaceaeEpipactis giganteastream orchid  3146
468OrchidaceaePlatanthera sparsiflorasparse-flowered bog-orchid1  19
469PoaceaeAchnatherum coronatumgiant needlegrass1  274
470PoaceaeAchnatherum hymenoidesIndian ricegrass1116221
471PoaceaeAchnatherum occidentalewestern needlegrass2   2
472PoaceaeAchnatherum speciosumdesert needlegrass  2147
473PoaceaeAgrostis exarataspike bentgrass1  141
474PoaceaeAgrostis stolonifera*creeping bentgrass1  117
475PoaceaeAgrostis viridis*green bentgrass  3137
476PoaceaeAndropogon glomeratus var. scabriglumissouthwestern bushy bluestem  7115
477PoaceaeAvena barbata*slender wild oats  31107
478PoaceaeBromus carinatus var. carinatusCalifornia brome1  192
479PoaceaeBromus catharticus*rescue grass  1128
480PoaceaeBromus diandrus*ripgut brome  31127
481PoaceaeBromus hordeaceus*soft chess  1189
482PoaceaeBromus madritensis ssp. rubens*red brome 161160
483PoaceaeBromus trinii*Chilean chess  1120
484PoaceaeCenchrus echinatus*southern sandbur  117
485PoaceaeCynodon dactylon*Bermuda grass  1189
486PoaceaeDeschampsia cespitosa ssp. cespitosatufted hair-grass1   3
487PoaceaeEchinochloa colona*jungle rice  1112
488PoaceaeElymus glaucusblue wildrye1  154
489PoaceaeEragrostis cilianensis*stinkgrass  1112
490PoaceaeEragrostis minor*little lovegrass  215
491PoaceaeFestuca rubrared fescue1  17
492PoaceaeHordeum murinum ssp. glaucum*foxtail barley  1 43
493PoaceaeHordeum murinum ssp. leporinum*foxtail barley  1 44
494PoaceaeImperata brevifoliasatintail  215
495PoaceaeLamarckia aurea*goldentop  1175
496PoaceaeMelica frutescenstall melica  4139
497PoaceaeMelica imperfectacoast-range melic  31122
498PoaceaeMuhlenbergia asperifoliascratchgrass  3119
499PoaceaePanicum capillarewitchgrass  3221
500PoaceaePanicum urvilleanumdesert panicgrass  616
501PoaceaePaspalum urvillei*Vasey's grass  114
502PoaceaePennisetum setaceum*fountain grass 13166
503PoaceaePleuraphis rigidabig galleta  7179
504PoaceaePoa secundaone-sided blue grass  6 13
505PoaceaePoa secunda ssp. juncifoliarush blue grass  1118
506PoaceaePoa secunda ssp. secundaone-sided bluegrass  1161
507PoaceaePolypogon australis*Chilean beard grass  115
508PoaceaePolypogon interruptus*ditch beard grass  1122
509PoaceaePolypogon monspeliensis*rabbits-foot grass  3198
510PoaceaeSchismus arabicus*Mediterranean grass  1 13
511PoaceaeSchismus barbatus*Mediterranean schismus  91114
512PoaceaeSorghum halepense*johnsongrass  1121
513PoaceaeVulpia myuros*rattail fescue  1 24
514TyphaceaeTypha sp.cattail 1  9
515ZannichelliaceaeZannichellia palustrishorned pondweed  4117

Voucher data provided by the participants of the Consortium of California Herbaria (

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Copyright © 2010 by Tom Chester
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Last update: 22 March 2010