Flora of Glorietta / Juanito Canyons and the Yaqui Meadows Area
Anza-Borrego Desert State Park

Left: a white variant, with a normal blue version, of common phacelia, Phacelia distans, in Juanito Canyon. Top right: Glorietta Canyon wall near Parking Area. Bottom right: View down Juanito Canyon from just below its junction with Glorietta Canyon. All pictures taken by Tom Chester on 15 March 2009. Click on pictures to get larger versions.

Also see View toward saddle at top of Glorietta Canyon and ABDNHA's Glorietta Canyon Photo Gallery 12 March 2009.

Procedure For Compiling The Checklist
Interesting Species
Interesting Monsoonal Flood Event


Glorietta Canyon, aka Glorieta Canyon, is a small treasure just southwest of the town of Borrego Springs that was given that name in 1978 "because the little canyon was a glorious place" (Lindsay, Anza-Borrego A to Z, 2001, p. 179). It used to be little-known, but has become popular in recent years for at least two reasons: the Visitor Center and the Anza-Borrego Desert Natural History Association staff recommend it to visitors; and it was listed as a half-day hike in Halford's 2005 Hiking in Anza-Borrego Desert book.

The spelling is Glorietta in the Lindsays' two books and Glorieta in Halford's book.

Many people have posted photographs online from this canyon. A search for "Glorietta Canyon" "Borrego Springs" as well as "Glorieta Canyon" "Borrego Springs", on 26 February 2011 found a total of about 700 webpages, many with photographs, about evenly divided between the two spellings.

However, this Canyon is not suitable for large numbers of people. The single-lane access road has essentially no pullouts, and there is comfortable parking for only perhaps 20 or so vehicles at the beginning of the Canyon. So many people went here on 14 March 2009, after a glowing report was written about the bloom there and everyone was then recommending that visitors go there, that a large traffic jam was created on the access road.

Traffic jams and overuse are a problem whenever one particular location is highly recommended. It is good to remember that whenever one particular area is in good bloom in the later winter / spring in the Borrego Desert, there are almost always a number of similar areas with good bloom. If Glorietta Canyon is in good bloom, it is highly likely that Little Surprise Canyon, Hellhole Canyon, Borrego Palm Canyon, and Henderson Canyon are all in equally good bloom. (Fall / early winter blooms from summer monsoons are different, and can be much more local.)

Juanito Canyon is a connecting canyon to the north, that can be part of a longer loop hike. Juanito Canyon is strikingly different since it is a more bouldery, north-south canyon, with small drops that need to be slowly negotiated around (no rock-climbing ability is needed; just the ability to find a good route to step down the drops). It also gives views to the north of Borrego Mountains, the Borrego Badlands, and the eastern part of the Santa Rosa Mountains.

One can enjoy the flowers in the immediate parking area of Glorietta Canyon, but there are many more treasures awaiting farther up Glorietta Wash, and in the higher part of the Canyon. Halford gives three hikes here:

The following map shows the access roads (labeled black lines) to Glorietta and Juanito Canyons, the hiking routes (blue lines), and the areas surveyed for the Plant Checklist presented below (blue, red and green lines, described below):

The driving route to Glorietta Canyon given in Halford is no longer possible, since the "fenced water pump road" is closed by a gate at its southern end. Fortunately, an easy detour is available, shown on the above map, as follows:

Driving Directions: Take Borrego Springs Road south of Christmas Circle for about 3.9 miles, and turn right on the dirt road immediately past the water pump road. This turn is soon after Borrego Springs Road curves to heading directly east, between mile markers 9 and 8 (mile markers decrease to the south).

Drive 0.8 miles south to a junction with another dirt road, then turn right. This road will turn left 90° at mile 1.2 (0.4 miles after the junction). At mile 1.7, turn right onto a signed Glorietta Canyon Road, and park at about mile 2.9 or so. The dirt roads are well graded, and most passenger cars should have no trouble getting to about mile 2.8, where there are a few boulders that some passenger cars may not be able to negotiate. If you don't want to drive past them, just park at that point.

Juanito Canyon can be reached separately via Tubb Canyon Road and an unmarked dirt road heading south.

Procedure For Compiling The Checklist

This checklist was compiled from 12 days of field surveys and from vouchers. We've been gradually expanding our survey area to the Yaqui Pass area, which now encompasses a much larger area than just Glorietta Canyon. We'll eventually split this checklist up into at least two different areas when the field surveys outside of Glorietta Canyon are more complete. The checklist gives separate columns to denote Glorietta / Juanito Canyon and the other areas.

Field Surveys

  1. The 15 March 2009 survey was done by Tom Chester, RT Hawke and Kate Shapiro, assisted by Shaun Hawke for part of the survey, and encompassed Glorietta Wash and the Glorietta / Juanito Loop, shown as the blue lines on the above map. A total of 115 species were found that could be reliably determined to the species level.

  2. The 22 February 2011 survey was done by Tom Chester in the area south of the parking area, and was done while unsuccessfully attempting to locate the Mexican bladder sage, Salazaria mexicana, vouchered from that area. This survey is shown as the red lines on the above map. A total of 73 species were found that could be reliably determined to the species level.

  3. The 28 December 2011 survey was done by Tom Chester and Kate Harper on the Glorietta / Juanito Loop, as well as the area immediately south of the parking area. That survey primarily was to check out the germination here, but also resulted in increased abundances for some species, and the addition of two species.

  4. The 27 January 2013 survey was done by Tom Chester, Mike Crouse, Keir Morse, Kate Harper, Karin Vickars and Lance Holmberg. It was a targeted survey for two vouchered species: Mexican bladder sage, Salazaria mexicana = Scutellaria mexicana; and spearleaf, Matelea parvifolia. Glorietta Canyon and Glorietta Wash were surveyed, and another 0.60 miles of the drainage south of Glorietta Wash was covered, yielding 14 new species. The green lines in the above map indicate the additional areas surveyed on this date.

    We found the Scutellaria mexicana this time, at a new location for it, but we failed to find the Matelea parvifolia.

  5. The 1 February 2013 survey was done by Tom Chester, Mike Crouse, Angelique Herman and Adrienne Ballwey. A portion of that survey is shown in the above map by the pink lines, with the survey continuing into the canyon below Pinyon Ridge. We call this canyon Salazaria Canyon since it contains many plants of that species, from its bottom to its top along Pinyon Ridge.

  6. The 5 February 2013 survey was done by Tom Chester, James Dillane, Mike Crouse and RT Hawke, with Kate Harper helping with the first part. We continued surveying up Salazaria Canyon and its western ridge to a knoll at 2800 feet elevation.

  7. The 11 February 2013 survey was done by Tom Chester, James Dillane, Kate Harper, Julia Lynam and Adrienne Ballwey. It was a focused search along the Glorietta / Juanito Loop solely looking for the Matelea. We still didn't find it.

  8. The 15 February 2013 survey was done by Tom Chester and Adrienne Ballwey, of an area northwest of Yaqui Pass, surveying west to the first major canyon.

  9. The 5 March 2013 survey was done by Tom Chester and Adrienne Ballwey, to see the Matelea parvifolia discovered by Mary Jo Churchwell on 28 February 2013, and to survey up to the Olneya tesota discovered by Lance Holmberg earlier on 5 March 2013.

  10. The 10 March 2013 survey was done by Tom Chester, Kate Harper and Lance Holmberg, resurveying the area northwest of Yaqui Pass, surveying west to the first major canyon, adding a loop north from that canyon back to the smaller canyon to the east.

  11. The 27 November 2013 survey was done by Tom Chester, Walt Fidler, Kate Harper, Lance Holmberg and Jim Roberts, surveying Glorietta Canyon and uppermost Juanito Canyon, primarily for monsoonal plants. This was the first survey of uppermost Juanito Canyon.

  12. The 1 December 2013 survey was done by Tom Chester, Walt Fidler and Adrienne Ballwey, up the drainage south of Glorietta Wash. We only covered an additional 0.1 mile of that canyon in several hours, due to its ruggedness.

The union of the 12 surveys contains 180 species, of which four species need further surveys to obtain or verify their determinations.


The vouchers for the Glorietta Canyon / Yaqui Meadows area come from a search on 25 January 2013 of the Consortium of California Herbaria. Additional vouchers from the Yaqui Pass area were obtained from a search on 16 February 2013.

For the Glorietta Canyon / Yaqui Meadows area, the Consortium records were searched for vouchers with coordinates between 33.17 and 33.21° N. Latitude, and -116.41 and -116.36 E. Longitude. This search returned 98 vouchers.

Additional searches were done for any voucher with Glorietta or Yaqui Meadows in its locality field, which added five vouchers for this area, as well as 62 vouchers from the area slightly farther east.

The vouchers were separated into two areas: a Glorietta Canyon area which included vouchers in Yaqui Meadows in the area shown on the map above; and an Eastern area of vouchers to the east of this area, but west of the north-south section of S3.

The vouchers in the eastern area were mainly from private property, 52 from the Tom and Rose Beltran property, with an additional 9 vouchers from the nearby state park property. All 61 of those vouchers were collected by Larry Hendrickson and Tom Beltran.

There were 102 vouchers in the Glorietta Canyon area, after deleting one voucher that was badly georeferenced that was actually from the Old Kane Springs Road far to the southwest.

The 102 total vouchers consisted of 92 unique taxa.

The dominant collectors by far were Kim Marsden and L. Hendrickson, who sometimes collected together and sometimes separately. Marsden was a collector on 72 vouchers, and Hendrickson was a collector on 43 vouchers. No other collector name was on more than 7 vouchers, except for the associate collectors of Marsden and Hendrickson.

(For the sharp-eyed and curious, the second voucher of Matelea parvifolia had a typo in its name in one voucher.)

For the Yaqui Pass area, the Consortium records were searched for vouchers with coordinates between 33.14 and 33.17° N. Latitude, and -116.37 and -116.31 E. Longitude. An additional search was made for vouchers with Yaqui Pass in their locality. A review of the localities resulted in eliminating 14 vouchers as not being in the target area, leaving 117 vouchers, of 67 unique taxa.

Total Checklist

The total checklist contains 200 species, of which four, Dalea sp., Eriogonum trichopes, Loeseliastrum sp. and Calochortus splendens, need further work to verify their determinations. Of the 199 species, 101 were found both in our surveys and in the vouchers. 79 species were found only in our surveys, and 20 species were found only in the vouchers. Many of the species found only in the vouchers were vouchered from areas outside those we surveyed.

Interesting Species

The species found here that are found in few other areas of the Borrego Desert (as narrowly defined in the link as roughly the northern half of Anza-Borrego Desert State Park) in our surveys are:

To put these in perspective, the median number of occurrences in all of our surveys is 24 for the plants in this Checklist. Creosote, Larrea tridentata, has been recorded on 66 of our Borrego Desert surveys, and is the most frequently-occurring species on those surveys.

These Canyons are also notable for their large populations of:

Two other species were in much greater abundance than elsewhere in the Borrego Desert: wing-nut cryptantha, Cryptantha pterocarya, had at least 100 plants total in many more than 9 locations, and Eucrypta chrysanthemifolia var. bipinnatifida, eucrypta, had at least 40 plants in 5 locations. Glorietta Wash also has about twenty plants of scarlet spiderling, Boerhavia coccinea.

Best of all, these canyons are largely free of the scourge of the non-native Brassica tournefortii, Asian mustard. Although we did find about 100 plants in total in our surveys, this is far from the tens of thousands in some areas. We pulled out a number of plants, and we saw evidence that others have done so as well. If you see it, and can confidently identify it, please remove as many plants as you can.

The only time we saw Chenopodium murale was on 27 November 2013 after the monsoonal rains, and we removed all ~60 plants we saw.

Interesting Monsoonal Flood Event

The summer of 2013 was an active monsoon season in this area. A thunderstorm in the drainage of the canyon immediately southeast of Glorietta Wash caused a flash flood that completely reworked its wash, including the area of Glorietta Wash below its junction with this drainage. The flash flood destroyed all evidence of the road that went through the wash. It largely wiped the wide wash clean of vegetation, depositing sand in some areas and eroding sand in others, creating banks several feet high in places, including one along the Glorietta Canyon access road.

As of 27 November 2013, the road has been recreated in approximately its old location by 4 WD vehicles, and is in good enough shape that we saw a minivan make it to the parking area. However, that minivan got stuck in the soft sand of the road when it ventured a bit out of the beaten-down tracks, and had to be pulled out.

Before the 2013 flash flood, the road was a clearly defined road within a broad vegetated wash that hadn't been disturbed for some time. Most visitors probably didn't even realize they were driving up a portion of a broad wash. Now that the broad wash has been wiped clean of vegetation in many places, it is much more apparent now that one is driving up a broad wash.

Pictures of the parking area at the entrance to Glorietta Canyon, a few tenths of a mile short of the end of the access road, taken on 27 January 2013 by Mike Crouse are compared to pictures taken on 27 November 2013 and 1 December 2013 by Tom Chester, are linked in Table 1, with corresponding boulders and features marked with numbers in the last two sets, and changes between pictures labeled.

Table 1. Comparison pictures taken before and after the flash flood from the parking area at the entrance to Glorietta Canyon

LocationMike Crouse Tom Chester
View looking east27 January 201327 November 2013
View looking southeast27 January 20131 December 2013
View looking west27 January 20131 December 2013

On 27 November 2013, we were stunned to find that this flash flood had brought a small number of higher-elevation species down to elevations where we had never seen them before! We observed Chamaesyce albomarginata and C. melanadenia thriving and blooming on the edges of Glorietta Wash where the first canyon to the southeast of Glorietta Wash joined it. These species had not been seen here in any of the ten previous surveys.

In this location, the plants were all either at the edge of the wash, or on benches above the wash that apparently had slower water moving on top of them.

The lowest elevation we have recorded C. melanadenia in this area is 2200 feet in Plum Canyon, and for C. albomarginata, 2275 feet above Sentenac Cienega toward uppermost Plum Vanyon. The lowest elevation of C. melanadenia on the California Riding and Hiking Trail in Hellhole Canyon is about 2000 feet. The elevation where we saw the plants on 27 November 2013 is about 1250 feet, about 1000 feet lower than the usual low elevation for these species.

It is also interesting to know that all the plants of these two species here germinated this summer, so we know how old they are.

In addition, we observed young plants of Datura wrightii, Sphaeralcea ambigua and Acmispon argophyllus for the first time at the same location.

It will be interesting to see if these plants, all perennials, will survive the summer here.

Checklist for Glorietta / Juanito Canyons

The Checklist follows the 2012 Jepson Manual Second Edition with only a few exceptions.

The Checklist is sorted first by the eight evolutionary categories (clades) used in the 2012 Second Edition Jepson Manual - lycophytes, ferns, etc., to eudicots and monocots - and then by family and scientific name. The clades are labeled in the Checklist. Note that this changes the order of presentation of the taxa from that of the 1993 First Edition.

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

An asterisk before the Common Name indicates a non-native taxon.

The scientific name is linked to the latest online Jepson Manual description for each species, which also gives the months in which each species flowers. That link also gives a map of where the species occurs in California; a plot of elevation vs. latitude for California; and a histogram of the voucher collections by month.

A few species may not have working links, if their names have been updated more recently (such as Mimulus diffusus, which is still listed under M. palmeri in the online flora), or if they are reserved-judgment taxa which are listed in the entry for another taxon name. However, as of 16 January 2013, the Jepson Manual links have all been updated to link to the parent species for the taxa without their own entries. Taxa linked to anything other than the Jepson Manual link for the full scientific name used below have been indicated with a ^ after the scientific name, and are discussed here.

The common name for most species in the checklist is linked to Calphotos to give pictures of most taxa. Of course, there is no guarantee that the Calphotos pictures are correctly identified.

Note that the link will not always return pictures, since not every species has pictures at Calphotos, and a number of species still have their Calphotos pictures under the Jepson Manual First Edition Names. Some links have been made to the Calphotos pictures using the First Edition Jepson Manual name, if there are no pictures under the Second Edition name. Of course, that may result in a link with no pictures if those the names of those Calphotos pix are updated in the future to the Second Edition names.

Note also that the links below will return only the specified taxon at Calphotos, and not any subtaxa; i.e., a link to Cryptantha barbigera will not return photos of Cryptantha barbigera var. barbigera. There may be additional pictures at Calphotos under a different scientific name such as the First Edition Jepson Manual name.

Some links go to special pages with more information on those species.

The column #Plants gives a rough estimate of the minimum number of plants that we saw, with a maximum value of 99 plants. The main intent of this column is to indicate the species for which we found very few plants. Separate estimates are given for areas from west to east as follows: the Glorietta / Juanito Canyon survey (header Gl); the area of Yaqui Meadows initially surveyed for Salazaria (header YM); "Salazaria Canyon" (header Sal); and the area northwest of Yaqui Pass (header YP). Note that the order of the columns might change from time to time depending on what area we are about to survey, placing that area in bold as the last column.

The columns with header #V give the number of vouchers found in this area. In the list below, the vouchers for Glorietta Canyon and Yaqui Meadows were combined to save space, under the header of Gl. The header YP gives the number of vouchers in the Yaqui Pass Area.

Version for printing, without lines and other text on this page: html (6 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)

#FamilyScientific Name(*)Common Name#V# Plants
1SelagSelaginella eremophiladesert spike-moss   9930 
2PteriCheilanthes covilleibeady lipfern  120  
3PteriCheilanthes parryiwoolly lipfern2 99997040
4PteriCheilanthes viscidasticky lipfern  2676? 
5PteriNotholaena californica ssp. californicaCalifornia cloak fern   1 2
6CupreJuniperus californicaCalifornia juniper  64550 
7EphedEphedra asperaMormon tea   89940
8AcantJusticia californicachuparosa1499999999
9AmaraAmaranthus fimbriatusfringed amaranth  30993 
10ApiacApiastrum angustifoliumwild celery  3020  
11ApiacSpermolepis lateriflorabristly spermolepis 1    
12ApocyAsclepias subulatarush milkweed 2   6
13ApocyFunastrum hirtellumrambling milkweed  1510701
14ApocyMatelea parvifoliaspearleaf2 4  1
15AsterAdenophyllum porophylloidesSan Felipe dogweed1 99995020
16AsterAmbrosia dumosaburroweed3299999950
17AsterAmbrosia salsola var. salsolacheesebush  304660
18AsterBaccharis brachyphyllashort-leaved baccharis  1 1 
19AsterBahiopsis parishiiParish's viguiera  50757020
20AsterBebbia juncea var. asperasweetbush1 99992075
21AsterBrickellia desertorumdesert brickellia   1  
22AsterCalycoseris wrightiiwhite tackstem3     
23AsterChaenactis carphoclinia var. carphocliniapebble pincushion2 9999 15
24AsterChaenactis fremontiiFremont pincushion1  99 99
25AsterChaenactis stevioidesdesert pincushion2 20   
26AsterDicoria canescensdesert dicoria 1    
27AsterEncelia farinosabrittlebush3199999999
28AsterEricameria brachylepisboundary goldenbush  1650 
29AsterEriophyllum wallacei var. wallaceiWallace's woolly daisy1 9999  
30AsterGutierrezia californicaCalifornia matchweed   14019
31AsterLogfia depressadwarf filago2 20   
32AsterLogfia filaginoidesCalifornia filago  1030  
33AsterMalacothrix glabratadesert dandelion1 3020  
34AsterMalperia tenuisbrown turbans1     
35AsterMonoptilon bellioidesdesert star21991  
36AsterPalafoxia arida var. aridaSpanish needle11 2  
37AsterPectis papposa var. papposachinch-weed  3035  
38AsterPerityle emoryiEmory's rock-daisy219999991
39AsterPleurocoronis plurisetaarrow-leaf  12 1155
40AsterPorophyllum gracileodora    14
41AsterPsathyrotes ramosissimaturtleback1     
42AsterRafinesquia neomexicanadesert chicory1 50202015
43AsterSenecio mohavensisMojave ragwort  3099 20
44AsterStephanomeria exigua ssp. exiguaslender wreathplant1 10175 
45AsterStephanomeria pauciflorawire-lettuce 199995040
46AsterTrichoptilium incisumyellow-head 1 9  
47AsterTrixis californica var. californicaCalifornia trixis1199995025
48AsterUropappus lindleyisilver puffs  10   
49BoragAmsinckia intermediacommon fiddleneck  9999 25
50BoragAmsinckia tessellata var. tessellatabristly fiddleneck1499  15
51BoragCryptantha angustifolianarrow-leaved cryptantha1 99   
52BoragCryptantha barbigera var. barbigerabearded cryptantha139999 99
53BoragCryptantha decipiensgravel cryptantha1 40   
54BoragCryptantha maritimaGuadalupe cryptantha2 99995099
55BoragCryptantha nevadensis var. nevadensisNevada cryptantha 121 11
56BoragCryptantha pterocarya var. cyclopteraTucson wing-nut cryptantha1 99  99
57BoragCryptantha racemosabushy cryptantha 1    
58BoragEmmenanthe penduliflora var. penduliflorawhispering bells3199999999
59BoragEucrypta chrysanthemifolia var. bipinnatifidaeucrypta  40  8
60BoragNama demissum var. demissumpurple mat1 50  22
61BoragPectocarya recurvatacurvenut combseed419999 99
62BoragPhacelia cicutaria var. hispidacaterpillar phacelia  50  1
63BoragPhacelia crenulata var. minutifloralittle-flowered heliotrope phacelia2120  99
64BoragPhacelia distanscommon phacelia2199999999
65BoragPhacelia pedicellatapedicellate phacelia 1   3
66BoragPholistoma membranaceumwhite fiesta flower1 99999999
67BoragTiquilia canescens var. canescensgray coldenia 3    
68BrassBoechera perennansperennial rock-cress    1 
69BrassBrassica tournefortii*Asian mustard1130992099
70BrassCaulanthus cooperiCooper's jewel-flower  1 2018
71BrassCaulanthus halliiHall's caulanthus    1 
72BrassCaulanthus lasiophyllusCalifornia mustard1 205 5
73BrassDescurainia pinnatawestern tansy-mustard  5011016
74BrassDescurainia pinnata ssp. glabrasmooth western tansy-mustard1     
75BrassDescurainia sophia*herb sophia 1    
76BrassHirschfeldia incana*shortpod mustard 1    
77BrassLepidium lasiocarpum ssp. lasiocarpumhairy-podded pepper-grass21995 2
78BrassLyrocarpa coulteriCoulter's lyrepod41440504040
79BrassSisymbrium irio*London rocket1 30  1
80BrassStreptanthella longirostrislongbeak streptanthella 1    
81BrassThysanocarpus curvipesfringe-pod1 50   
82CactaCylindropuntia bigeloviiteddy-bear cholla  99999999
83CactaCylindropuntia ganderiGander's cholla3 99999999
84CactaEchinocereus engelmanniiEngelmann's hedgehog cactus1 1469910
85CactaFerocactus cylindraceusCalifornia barrel cactus3 99999999
86CactaMammillaria dioicaCalifornia fish-hook cactus1 7249920
87CactaMammillaria tetrancistrafish-hook cactus  52  
88CactaOpuntia basilaris var. basilarisbeavertail cactus2 80999930
89CampaNemacladus glanduliferusglandular nemacladus21   5
90CampaNemacladus rubescensdesert nemacladus1     
91ChenoChenopodium murale*nettle-leaved goosefoot 160   
92ChenoMonolepis nuttallianaNuttall's poverty weed 1    
93CrassCrassula connatapygmy-weed1 5  37
94CrassDudleya saxosa ssp. aloidesdesert dudleya  2639
95CrossCrossosoma bigeloviirock crossosoma4 912  
96EuphoBernardia incanawestern bernardia   1  
97EuphoChamaesyce albomarginatarattlesnake weed  51  
98EuphoChamaesyce melanadeniared-gland spurge  3515  
99EuphoChamaesyce micromeraSonoran spurge  101  
100EuphoChamaesyce polycarpasmall-seeded spurge2199999999
101EuphoChamaesyce setilobastarfish (Yuma) spurge1 99999999
102EuphoDitaxis lanceolatanarrowleaf ditaxis2199999975
103EuphoDitaxis neomexicanaNew Mexico ditaxis2 99  
104EuphoEuphorbia erianthabeetle spurge 2  1312
105EuphoStillingia linearifolialinear-leaved stillingia   10  
106FabacAcmispon argophyllus var. argophyllussouthern California silver-lotus  103  
107FabacAcmispon glaber var. brevialatusshort-winged deerweed1  150 
108FabacAcmispon maritimus var. brevivexillusshort-bannered coastal lotus3 601499
109FabacAcmispon rigidusdesert lotus13172024
110FabacAcmispon strigosusstrigose lotus  1026010
111FabacAstragalus palmeriPalmer's milk-vetch 135  
112FabacDalea sp.dalea  4   
113FabacLupinus concinnusbajada lupine113030 17
114FabacLupinus sparsiflorusCoulter's lupine1     
115FabacOlneya tesotaironwood  1   
116FabacPsorothamnus schottiiindigo bush2 99509975
117FabacPsorothamnus spinosussmoke tree 2   40
118FabacSenegalia greggiicatclaw 199997599
119FabacSenna armataspiny senna2115 705
120FouquFouquieria splendens ssp. splendensocotillo3199999999
121GeranErodium cicutarium*redstem filaree2 99999999
122GeranErodium texanumTexas filaree1  5 6
123KrameKrameria bicolorwhite rhatany3170999915
124KrameKrameria erectaPima rhatany  99 1045
125LamiaHyptis emoryidesert-lavender1199999999
126LamiaSalvia apianawhite sage    1 
127LamiaSalvia columbariaechia3 99502520
128LamiaSalvia vaseyiVasey's sage  454726
129LamiaScutellaria mexicanaMexican bladder sage2  56998
130LoasaMentzelia affinisyellow blazing star2 10   
131LoasaMentzelia albicauliswhite-stemmed blazing star  10  99
132LoasaMentzelia involucratabracted blazing star4 50  5
133LoasaMentzelia veatchianaVeatch's blazing star1     
134MalvaAyenia compactaayenia12141151
135MalvaEremalche rotundifoliadesert five-spot  1   
136MalvaHibiscus denudatusrock hibiscus 34099995
137MalvaSphaeralcea ambigua var. ambiguaapricot mallow  1011  
138MolluMollugo cerviana*carpet-weed  499  
139MontiCalyptridium monandrumsand cress1 22   
140NyctaAllionia incarnatatrailing four o'clock    5 
141NyctaBoerhavia coccineascarlet spiderling  35 2 
142NyctaBoerhavia triquetra var. intermediafivewing spiderling  109922
143NyctaMirabilis laevis var. retrorsaBigelow's desert four-o'clock1199992050
144OnagrCamissoniopsis pallida ssp. pallidapale suncup  3010  
145OnagrChylismia cardiophylla ssp. cardiophyllaheartleaf suncup 2    
146OnagrChylismia claviformis ssp. peirsoniibrown-eyed primrose1 99 299
147OnagrEremothera boothii ssp. condensataBooth's evening primrose    20 
148OnagrEremothera chamaenerioideslong-fruit suncup  5   
149OnagrEulobus californicusCalifornia suncup  50501099
150PapavEschscholzia minutiflora ssp. minutiflorasmall-flowered poppy419999499
151PapavEschscholzia parishiiParish's poppy1499202050
152PhrymMimulus bigelovii var. bigeloviiBigelow's monkeyflower3350995099
153PlantAntirrhinum filipesdesert twining snapdragon1 1   
154PlantKeckiella antirrhinoides var. microphyllalittle-leaved chaparral beardtongue   1  
155PlantMohavea confertifloraghost flower215  3
156PlantPlantago ovatadesert plantain1 20509945
157PolemEriastrum eremicum ssp. eremicumdesert woolly-star1 99992515
158PolemGilia stellatastar gilia  501 3
159PolemLangloisia setosissima ssp. setosissimabristly langloisia11    
160PolemLoeseliastrum sp.calico   50  
161PolygChorizanthe brevicornu var. brevicornubrittle spineflower2 1  4
162PolygEriogonum fasciculatum var. polifoliumCalifornia buckwheat  65502030
163PolygEriogonum inflatumdesert trumpet3335161099
164PolygEriogonum maculatumspotted buckwheat1    1
165PolygEriogonum reniformekidney-leaf buckwheat 1    
166PolygEriogonum thomasiiThomas' buckwheat4150  75
167PolygEriogonum trichopeslittle desert trumpet    40? 
168PolygEriogonum wrightii var. nodosumWright's buckwheat  998599
169PolygPterostegia drymarioidesthreadstem  202020 
170RanunDelphinium parishii ssp. subglobosumintermediate larkspur 130352046
171ResedOligomeris linifolialineleaf whitepuff  50   
172RhamnZiziphus parryi var. parryilotebush  40101 
173RosacPrunus fremontiidesert apricot  20994 
174RubiaGalium stellatumstar-flowered bedstraw2130312025
175RutacThamnosma montanaturpentine broom 1   30
176SimmoSimmondsia chinensisjojoba2499999999
177SolanDatura wrightiisacred datura  59  
178SolanLycium andersoniiAnderson's desert-thorn 220303192
179SolanNicotiana obtusifoliadesert tobacco  25510 
180SolanPhysalis crassifoliathick-leaved ground cherry 19999159
181UrticParietaria hespera var. hesperapellitory  50993099
182ViscaPhoradendron californicumdesert mistletoe 11121060
183ZygopFagonia laevisCalifornia fagonia1499995099
184ZygopLarrea tridentatacreosote bush3399999999
185AgavaAgave deserti var. desertidesert agave 199999999
186LiliaCalochortus splendenssplendid mariposa lily    4? 
187PoaceAristida adscensionissix-weeks three-awn  5099158
188PoaceAristida purpureapurple three-awn  81312
189PoaceBouteloua aristidoides var. aristidoidesneedle grama  7   
190PoaceBouteloua barbata var. barbatasix-weeks grama  251  
191PoaceBromus diandrus*ripgut brome 1    
192PoaceBromus madritensis ssp. rubens*red brome  99999999
193PoaceBromus tectorum*downy brome     5
194PoaceDasyochloa pulchellafluff grass 2    
195PoaceFestuca bromoides*brome fescue  305  
196PoaceHilaria rigidabig galleta   1025 
197PoaceMelica frutescenstall melica  8102 
198PoacePoa secunda ssp. secundaone-sided bluegrass   1  
199PoaceSchismus barbatus*Mediterranean schismus3 99999999
200ThemiMuilla maritimamuilla  2 10

We thank Shaun Hawke for help with part of the 15 March 2009 survey, Karin Vickars for help with the 27 January 2013 Matelea hunt, Julia Lynam for help with the 11 February 2013 Matelea hunt, and Jim Roberts for help with the monsoonal plants survey on 27 November 2013. We thank Bill Sullivan for comments that improved the presentation on this page, as well as some color tweaks to the photographs at the top of the page.

Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/)

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Copyright © 2011-2013 by Tom Chester, Kate Harper, Adrienne Balley, Mike Crouse, Lance Holmberg, RT Hawke, James Dillane, Walt Fidler, Kate Shapiro, Keir Morse, Angelique Herman and Jim Roberts. Authors listed in order of the number of surveys in which they participated.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
Comments and feedback: Tom Chester
Last update: 6 January 2017