Panorama of Hellhole Canyon, Flatcat Canyon, and the Hellhole Canyon alluvial fan © Mike Crouse (labeled version)

Hellhole Palms © Tom Chester
(larger version)

Flora of Hellhole Canyon

Procedure For Compiling The Checklist
Important Caveats

Maidenhair Falls © Rick Halsey
((larger version)


This page gives just a flora of the Hellhole Canyon Area, updated as of 13 December 2013. The text on this page has not been revised to reflect that, except in the checklist portion.

Hellhole Canyon and Culp Valley are a natural floral unit, since the upper part of Hellhole Canyon is most-easily accessed via Culp Valley. The main access road to Borrego Springs in this area travels through Culp Valley and ends at the bottom of Hellhole Canyon. One of the main hiking trails in this area, the California Riding and Hiking Trail, goes from Culp Valley to the bottom of Hellhole Canyon.

Culp Valley is the first part of Anza-Borrego Desert State Park encountered by visitors traveling along S22 from Ranchita and the Montezuma Valley. You enter Anza-Borrego Desert State Park just before the road crests at the lip of the Salton Sea erosional basin and you travel down the Montezuma Grade. This is a very dramatic way to enter the park, with terrain so challenging that no road was built until S22 was finished in 1964 after ten years of construction.

The first five miles of S22 past the crest, from mile marker 6.5 to 11.6 on S22, is in Culp Valley. There is a popular campground, the Culp Valley Primitive Campground, at a turnoff near mile marker 9.2 on S22. After mile marker 11.6, the road descends into Culp Canyon, and then heads northeast along the east side of the ridge separating Hellhole Canyon from the southern part of Borrego Valley.

Immediately before the final sweeping curve to the right on S22, just before S22 meets Palm Canyon Road (turnoff to Visitor Center) at the base of Hellhole Canyon on the western outskirts of Borrego Springs, there is a large parking lot, with two restrooms, on the left (west side of S22). (See map here.) This is the parking lot for the Hellhole Canyon Trail, and for Little Surprise Canyon, as well as another access point for the California Hiking and Riding Trail.

Hellhole Canyon is one of the more popular areas of Anza-Borrego Desert State Park. The five mile roundtrip hike to Maidenhair Falls and the Hellhole Palms, with flowing water most of the year, is the top attraction. The Visitor Center often directs non-hikers to Little Surprise Canyon, right next to the Hellhole Canyon parking area, for a good wildflower show in the spring that can be enjoyed with very little walking.

The lower part of the California Hiking and Riding Trail crosses the base of the Hellhole Canyon alluvial fan, beginning at the southeast corner of the Visitor Center parking lot and crossing the Hellhole Canyon Trail, and traveling up the south wall of Hellhole Canyon to Culp Valley.

This checklist is only a start at the flora of this Canyon, since many of the entries come from vouchers I haven't yet reviewed, and I haven't yet vouchered all of the new records I have found so that my determinations can be reviewed. This checklist can only be considered a decent flora after I finish both of those tasks. This checklist will be revised as I work on both of those tasks.


Hellhole Canyon is west of Borrego Springs; Culp Valley is a flattish valley above the south wall of Hellhole Canyon:

The boundaries of this Flora are shown in more detail in the map below:

The Culp Valley Floral Area includes Culp Valley itself, plus the following areas:

Culp Valley itself extends down to 2800 feet elevation, where Culp Canyon begins.

The total elevation range for the Culp Valley Floral Area is 2800 - 4600 feet.

The Hellhole Canyon Flora Area follows the drainage basin of Hellhole Canyon up to an elevation of 3000 feet, extending to the ridge containing Panorama Outlook on the north, the 3000 foot contour in the west and southwest, and following the top of the ridge extending from Culp Valley to Borrego Springs on the southeast. The latter ridge divides the drainage to Hellhole Canyon and the drainage to the portion of the Borrego Valley that is south of Christmas Circle in Borrego Springs.

The total elevation range for the Hellhole Canyon Area is 835 feet at the Visitor Center to 3000 feet.

The following map shows the areas surveyed so far that are included in the checklist below:

Note that very little of Culp Valley has been surveyed so far, being only covered by most of the top part of the California Riding and Hiking Trail.

The checklist below contains separate entries for the species found in each of these areas:

Procedure For Compiling The Checklist

The Checklist was compiled from field work done by myself and coworkers, and from online vouchers.

Field Work

The checklist from our field work was compiled using the results up to and including 15 January 2010, which consisted of a total of 17 different full days of field work with a total of 40 people-days. The largest number of trips were done by the following people:

# field daysPerson
17Tom Chester
5Kay Madore
3Mike Crouse
2Wayne Armstrong and Paula Knoll

People devoting one day to a survey were: Adrienne Ballwey, James Dillane, Michael Charters, Jeff Field, Kate Harper, Frank Harris, RT Hawke, Shaun Hawke, Jim Roberts, Aaron Schusteff, Kate Shapiro, Pam Pallette, Vince Balch, Preston Taylor, and Richard Sapiro.

The surveys were all done in the non-prime time of December and January, except for one survey of Hellhole Canyon on 25 March 2005 and one survey of Little Surprise Canyon on 1 April 2008. See the links immediately above for detailed information about the area covered, the dates of coverage, and the participants, for each of the surveyed sections.

The following table gives the number of species found in each area, the total number and the total number fairly confidently identified, along with elevation ranges and miles covered in each survey area, in order of descending elevation of the survey:

Survey# milesElevation (feet)# Taxa# Identified Taxa
California Riding and Hiking Trail Top Part2.38258035209384
California Riding and Hiking Trail Bottom Part3.108352580111106
Hellhole Canyon Trail2.658802040187182
Little Surprise Canyon~2.2588010809796

Because most of the trips were done in December and January, some of the species found could not be fully identified, although they could be distinguished in the field. These species were usually dead plants from the previous year, but sometimes were babies of the current year. Examples are species in the following genera: Datura, Nemacladus, Cryptantha, Lupinus. Observations of those species are not present in the checklist below, which contains only the fairly-confidently-identified taxa. Hence those surveys should not be considered as complete records of all the species in the area surveyed.

Most of these taxa are almost certainly identified correctly, but a small percentage of the fairly-confidently-identified taxa are what I call 95% confidence taxa. These are ones that are highly likely to be the determined taxa, but did not have flowers or fruit to make the determination 100%. One would expect that up to 5% of such species might turn out to be incorrectly identified.

Altogether, 246 separate taxa were found in these surveys.


The vouchers were obtained from searches of the Consortium of California Herbaria on 19 January 2010.

The Consortium database was searched for the subset of vouchers with coordinates using a rectangle with corners of (33.264,-116.456) and (33.231, -116.406) for Hellhole Canyon, and another rectangle with corners of (33.234, -116.504) and (33.174, -116.433) for Culp Valley. In addition, the database was searched for all vouchers, with and without coordinates, containing one of the following words in the locality field: Hellhole, Hell hole, Flatcat, Flat cat, and Culp. Searches were also made using the name of springs in Culp Valley, but no additional vouchers were retrieved.

In addition, a separate search was made for every taxon found in the field surveys that had no vouchers found in either area. This did not result in any additional vouchers for this area, making it likely that the previous searches were highly complete.

Duplicate vouchers were then eliminated. The locality field in each remaining voucher was then manually reviewed, and the vouchers were placed in the Culp Valley Floral Area, the Hellhole Canyon Floral Area, or were discarded if they were from another area. Vouchers from Culp Canyon were discarded, since they are outside the Culp Valley Area defined here.

Two vouchers of Chinese privet, Ligustrum sinense, were removed from further consideration, since they were found only near an old homestead in Culp Valley and this species is not otherwise known to be reproducing in the wild in southern California.

The determination on one voucher of Quercus john-tuckeri was treated as a voucher of Q. cornelius-mulleri, since that is a highly-likely misdetermination.

One voucher, for Cryptantha intermedia from the Hellhole Canyon alluvial fan, was taken to be misdetermined and not included in the voucher list.

A total of 369 vouchers were found, 85 from the Hellhole Canyon Area and 284 from the Culp Valley area.

Altogether, 202 separate taxa were found in these vouchers, 60 from Hellhole Canyon and 167 from Culp Valley.

The top collectors for Hellhole Canyon were:

# Vouchers% VouchersCollector(s)
2226Larry Hendrickson
1518Carl Epling, Wm. Robison
1315R. Mitchel Beauchamp (10 with R. C. Pierce)

The top collectors for Culp Valley were:

# Vouchers% VouchersCollector(s)
10136Frank F. Gander
228Melvin M. Sweet
186Michael G. Simpson
145Bill Sullivan
124CRES Native Seed Gene Bank, J Dunn, L Lippitt, S Anderson
114Richard Mallory
114Suzanne Bell
104C. W. Tilforth, John Dourley
104Kim Marsden, with Ruth Otis, R. Ehly, G. Clark, M. J. Churchwell

Important Caveats

Please note the following important caveats about this preliminary Checklist:

Checklist for Hellhole Canyon

I make the working list available online for two reasons. First, I know others will appreciate having such a list, even if it is preliminary. Second, I hope I will get feedback from others who find errors or omissions in this list.

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 six characters in order to save space in the table rows.

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

The column labeled #Pls gives a minimum estimate of the number of plants from the field surveys, up to a maximum of 99 plants, for species seen in the field surveys for which abundances were noted.

The column labeled #V gives the number of vouchers in Henderson Canyon.

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 January2013, 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, such as for Bochera perennans, go to special pages with more information on those species.

As of 14 January 2013, the picture links have all been updated to link to a page that has pictures. Taxa linked to anything other than the Calphotos page of their full scientific name used below have been indicated with a ^ after the common name.

If you find any links from either the scientific or common names below that do not work, please let us know so we can update them.

The first column after the common name is the number of vouchers in the Hellhole Canyon Area, column header #V.

The next columns give the minimum number of plants observed in each area, up to a maximum of 99. The column headers are:

Version for printing, without lines and other text on this page: html (8 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)

#FamilScientific Name(*)Common Name#V#Plants
1SelagSelaginella eremophiladesert spike-moss150  40
2PteriAdiantum capillus-venerismaidenhair fern    99
3PteriCheilanthes covilleibeady lipfern230 230
4PteriCheilanthes parryiwoolly lipfern29930240
5PteriCheilanthes viscidasticky lipfern   25
6PteriNotholaena californica ssp. californicaCalifornia cloak fern1  12
7PteriPellaea mucronata var. mucronatabird's-foot fern    2
8CupreJuniperus californicaCalifornia juniper 99 520
9EphedEphedra asperaMormon tea 2 230
10AcantCarlowrightia arizonicaArizona carlowrightia1 3 99
11AcantJusticia californicachuparosa150505099
12AdoxaSambucus nigra ssp. caeruleablue elderberry   11
13AmaraAmaranthus fimbriatusfringed amaranth 40  99
14AnacaRhus ovatasugar bush   1520
15ApiacApiastrum angustifoliumwild celery    5
16ApiacDaucus pusillusrattlesnake weed120   
17ApiacSpermolepis infernensisHellhole Canyon spermolepis2    
18ApocyFunastrum cynanchoides var. hartwegiiclimbing milkweed   299
19ApocyMatelea parvifoliaspearleaf12   
20AsterAdenophyllum porophylloidesSan Felipe dogweed 2011050
21AsterAmbrosia dumosaburroweed 9950 99
22AsterAmbrosia psilostachyawestern ragweed    99
23AsterAmbrosia salsola var. salsolacheesebush 5020599
24AsterArtemisia ludoviciana ssp. albulawhite mugwort 1 1020
25AsterArtemisia ludoviciana ssp. ludovicianasilver wormwood   1010
26AsterBaccharis salicifolia ssp. salicifoliamule fat   305
27AsterBaccharis sergiloidesdesert baccharis   1030
28AsterBahiopsis parishiiParish's viguiera13021050
29AsterBebbia juncea var. asperasweetbush 20205050
30AsterBrickellia atractyloides var. argutaCalifornia spear-leaved brickellia 1   
31AsterBrickellia desertorumdesert brickellia    3
32AsterBrickellia frutescensshrubby brickellia 26   
33AsterCalycoseris wrightiiwhite tackstem  20  
34AsterChaenactis carphoclinia var. carphocliniapebble pincushion 9999  
35AsterChaenactis fremontiiFremont pincushion19999 99
36AsterEncelia farinosabrittlebush299409999
37AsterEricameria brachylepisboundary goldenbush 30  1
38AsterEricameria linearifolianarrowleaf goldenbush 1   
39AsterErigeron canadensishorseweed    1
40AsterEriophyllum wallacei var. wallaceiWallace's woolly daisy2   99
41AsterGutierrezia californicaCalifornia matchweed 50   
42AsterLactuca serriola*prickly lettuce    5
43AsterLasthenia gracilisgoldfields    2
44AsterLogfia depressadwarf filago ?  20
45AsterLogfia filaginoidesCalifornia filago 50  99
46AsterMalacothrix glabratadesert dandelion19920 99
47AsterMonoptilon bellioidesdesert star29910 99
48AsterPectis papposa var. papposachinch-weed 401 99
49AsterPerityle emoryiEmory's rock-daisy19950 99
50AsterPleurocoronis plurisetaarrow-leaf   19
51AsterPluchea sericeaarrow-weed    5
52AsterPorophyllum gracileodora 10 201
53AsterPseudognaphalium biolettiibicolored everlasting   12
54AsterPseudognaphalium luteoalbum*common cudweed    5
55AsterRafinesquia neomexicanadesert chicory1730110
56AsterSenecio mohavensisMojave ragwort 9930 5
57AsterSolidago velutina ssp. californicagoldenrod   1040
58AsterSonchus asper ssp. asper*prickly sow thistle    2
59AsterSonchus oleraceus*sow thistle   11
60AsterStephanomeria exigua ssp. exiguaslender wreathplant    1
61AsterStephanomeria pauciflorawire-lettuce 5051099
62AsterStylocline gnaphaloideseverlasting nest-straw 50   
63AsterTrichoptilium incisumyellow-head 2510  
64AsterTrixis californica var. californicaCalifornia trixis25052050
65AsterUropappus lindleyisilver puffs  2 1
66BignoChilopsis linearis ssp. arcuatadesert-willow   2099
67BoragAmsinckia intermediacommon fiddleneck    99
68BoragAmsinckia retrorsasmall-flowered fiddleneck 9910  
69BoragAmsinckia tessellata var. tessellatabristly fiddleneck x99  
70BoragCryptantha angustifolianarrow-leaved cryptantha 5099  
71BoragCryptantha barbigera var. barbigerabearded cryptantha19920 99
72BoragCryptantha decipiensgravel cryptantha 99   
73BoragCryptantha maritimaGuadalupe cryptantha19999  
74BoragCryptantha micrantha var. micranthared-root cryptantha  4  
75BoragCryptantha nevadensis var. nevadensisNevada cryptantha 20   
76BoragCryptantha pterocaryawing-nut cryptantha 3030  
77BoragEmmenanthe penduliflora var. penduliflorawhispering bells29930 20
78BoragEriodictyon trichocalyx var. lanatumsmoothleaf yerba santa1  3099
79BoragEucrypta chrysanthemifolia var. bipinnatifidaeucrypta 25 5
80BoragNama demissum var. demissumpurple mat 23 2
81BoragPectocarya heterocarpachuckwalla pectocarya 1   
82BoragPectocarya peninsularisBaja pectocarya 120  
83BoragPectocarya recurvatacurvenut combseed 9999  
84BoragPhacelia cicutaria var. hispidacaterpillar phacelia 9910 5
85BoragPhacelia crenulata var. minutifloralittle-flowered heliotrope phacelia 130  
86BoragPhacelia distanscommon phacelia299999999
87BoragPhacelia minorwild canterbury bells    10
88BoragPhacelia pedicellatapedicellate phacelia  10 9
89BoragPhacelia ramosissimabranching phacelia   350
90BoragPholistoma membranaceumwhite fiesta flower 50 9999
91BrassBrassica tournefortii*Asian mustard199995099
92BrassCaulanthus lasiophyllusCalifornia mustard14010  
93BrassDescurainia pinnatawestern tansy-mustard150203099
94BrassDraba cuneifoliawedge-leaved draba 23  
95BrassLepidium lasiocarpum ssp. lasiocarpumhairy-podded pepper-grass 9950 99
96BrassLyrocarpa coulteriCoulter's lyrepod1201 x
97BrassNasturtium officinalewater cress    10
98BrassSisymbrium irio*London rocket1105  
99BrassSisymbrium orientale*Oriental mustard   5010
100BrassThysanocarpus curvipesfringe-pod140   
101CactaCylindropuntia bigeloviiteddy-bear cholla 991299
102CactaCylindropuntia ganderiGander's cholla 99502099
103CactaEchinocereus engelmanniiEngelmann's hedgehog cactus1991540
104CactaFerocactus cylindraceusCalifornia barrel cactus 99202020
105CactaMammillaria dioicaCalifornia fish-hook cactus1995 70
106CactaOpuntia basilaris var. basilarisbeavertail cactus 9951099
107CactaOpuntia phaeacanthadesert prickly-pear 17   
108CampaNemacladus glanduliferusglandular nemacladus  3  
109CampaNemacladus rubescensdesert nemacladus2    
110ChenoChenopodium murale*nettle-leaved goosefoot  21020
111CleomPeritoma arborea var. angustatadesert bladderpod   140
112CrassCrassula connatapygmy-weed 9999 10
113CrassDudleya saxosa ssp. aloidesdesert dudleya 5  2
114CucurCucurbita palmatacoyote melon  1  
115CucurMarah macrocarpawild-cucumber   22
116EuphoBernardia incanawestern bernardia 2  1
117EuphoChamaesyce arizonicaArizona spurge 110  
118EuphoChamaesyce melanadeniared-gland spurge 50 550
119EuphoChamaesyce micromeraSonoran spurge  15  
120EuphoChamaesyce polycarpasmall-seeded spurge29950 99
121EuphoChamaesyce setilobastarfish (Yuma) spurge  30 99
122EuphoDitaxis lanceolatanarrowleaf ditaxis150203099
123EuphoDitaxis neomexicanaNew Mexico ditaxis 502 99
124EuphoStillingia linearifolialinear-leaved stillingia 1  30
125FabacAcmispon glaber var. brevialatusshort-winged deerweed   23
126FabacAcmispon maritimus var. brevivexillusshort-bannered coastal lotus 9920 50
127FabacAcmispon rigidusdesert lotus220 2010
128FabacAcmispon strigosusstrigose lotus 99  20
129FabacDalea mollissimadowny dalea 32 1
130FabacLupinus arizonicusArizona lupine  40  
131FabacLupinus concinnusbajada lupine15  5
132FabacLupinus sparsiflorusCoulter's lupine  5 99
133FabacMelilotus indicus*sourclover    50
134FabacProsopis glandulosa var. torreyanahoney mesquite    30
135FabacPsorothamnus schottiiindigo bush 9920 99
136FabacSenegalia greggiicatclaw 3059999
137FouquFouquieria splendens ssp. splendensocotillo45050 99
138GeranErodium cicutarium*redstem filaree 99993099
139GeranErodium texanumTexas filaree  5  
140GrossRibes indecorumwhite-flowering currant   2x
141KrameKrameria bicolorwhite rhatany 215 10
142KrameKrameria erectaPima rhatany 5015 5
143LamiaHyptis emoryidesert-lavender250202099
144LamiaSalvia apianawhite sage    2
145LamiaSalvia columbariaechia 10  99
146LamiaSalvia eremostachyadesert sage310   
147LamiaSalvia vaseyiVasey's sage1152 5
148LamiaStachys rigidarigid hedge-nettle   105
149LoasaMentzelia affinisyellow blazing star  20  
150LoasaMentzelia involucratabracted blazing star 1020  
151LythrLythrum californicumCalifornia loosestrife   1020
152MalvaAyenia compactaayenia 52 50
153MalvaHibiscus denudatusrock hibiscus15010 50
154MalvaHorsfordia newberryiNewberry's velvet mallow1  113
155MalvaMalacothamnus aboriginumIndian Valley bush mallow   9950
156MalvaSphaeralcea ambigua var. ambiguaapricot mallow 3 550
157MolluMollugo cerviana*carpet-weed  45 99
158MontiClaytonia parviflora ssp. parvifloranarrow-leaved miner's lettuce    3
159NyctaAllionia incarnata var. incarnatatrailing four o'clock  10 30
160NyctaBoerhavia coccineascarlet spiderling    10
161NyctaBoerhavia triquetra var. intermediafivewing spiderling 9999 99
162NyctaMirabilis laevis var. retrorsaBigelow's desert four-o'clock 9951040
163OleacMenodora scabra var. glabrescensbroom twinberry 30   
164OnagrCamissoniopsis pallida ssp. pallidapale suncup11  1
165OnagrChylismia cardiophylla ssp. cardiophyllaheartleaf suncup  20 35
166OnagrChylismia claviformis ssp. peirsoniibrown-eyed primrose    50
167OnagrEpilobium canum ssp. latifoliummountain California-fuchsia    99
168OnagrEremothera boothii ssp. condensataBooth's evening primrose1520  
169OnagrEulobus californicusCalifornia suncup19999 99
170OnagrOenothera elata ssp. hirsutissimaHooker's evening-primrose    2
171OrobaCastilleja foliolosawoolly Indian paintbrush 1   
172PapavArgemone munitaprickly poppy    5
173PapavEschscholzia californicaCalifornia poppy    1
174PapavEschscholzia minutiflora ssp. minutiflorasmall-flowered poppy39940 99
175PapavEschscholzia parishiiParish's poppy12099102
176PhrymMimulus bigelovii var. bigeloviiBigelow's monkeyflower1 5 99
177PhrymMimulus cardinalisscarlet monkeyflower    5
178PlantAntirrhinum filipesdesert twining snapdragon 4   
179PlantCollinsia concolorsouthern Chinese houses    20
180PlantKeckiella antirrhinoides var. microphyllalittle-leaved chaparral beardtongue   2 
181PlantMohavea confertifloraghost flower  10  
182PlantPlantago major*common plantain    5
183PlantPlantago ovatadesert plantain 9999  
184PlantVeronica anagallis-aquatica*water speedwell    5
185PlataPlatanus racemosawestern sycamore   1020
186PolemEriastrum eremicum ssp. eremicumdesert woolly-star 993010x
187PolemGilia capitata ssp. abrotanifoliaglobe gilia    30
188PolemGilia stellatastar gilia19950 1
189PolemLangloisia setosissima ssp. setosissimabristly langloisia  99  
190PolemLoeseliastrum matthewsiidesert calico  20 2
191PolygChorizanthe brevicornu var. brevicornubrittle spineflower 540 10
192PolygEriogonum fasciculatum var. polifoliumCalifornia buckwheat150 310
193PolygEriogonum gracile var. incultumslender buckwheat    3?
194PolygEriogonum inflatumdesert trumpet1130 50
195PolygEriogonum maculatumspotted buckwheat2    
196PolygEriogonum thomasiiThomas' buckwheat1450  
197PolygEriogonum wrightii var. nodosumWright's buckwheat 30  5
198PolygPterostegia drymarioidesthreadstem 101103
199PolygRumex conglomeratus*whorled dock    1
200RanunClematis lasianthavirgin's bower   101
201RanunDelphinium parishii ssp. subglobosumintermediate larkspur 40  x
202RhamnZiziphus parryi var. parryilotebush 10  2
203RosacPrunus fremontiidesert apricot 20 1050
204RubiaGalium angustifolium ssp. borregoenseBorrego bedstraw   22
205RubiaGalium stellatumstar-flowered bedstraw 10   
206SalicPopulus fremontii ssp. fremontiiFremont cottonwood   202
207SalicSalix exigua var. exiguanarrowleaf willow   520
208SalicSalix laevigatared willow   2020
209SimmoSimmondsia chinensisjojoba 5052050
210SolanDatura discolordesert thornapple 5   
211SolanDatura wrightiisacred datura    45
212SolanLycium andersoniiAnderson's desert-thorn   5030
213SolanNicotiana obtusifoliadesert tobacco  1120
214SolanPhysalis crassifoliathick-leaved ground cherry 205 99
215SolanSolanum douglasiiwhite nightshade    1
216SolanSolanum parishiiParish's purple nightshade    2
217TamarTamarix ramosissima*saltcedar    2
218UrticParietaria hespera var. hesperapellitory130305099
219ViscaPhoradendron californicumdesert mistletoe    66
220VitacVitis girdianawild grape    10
221ZygopFagonia laevisCalifornia fagonia19950 20
222ZygopLarrea tridentatacreosote bush 9999 99
223AgavaAgave deserti var. desertidesert agave 99105099
224AgavaHesperoyucca whippleichaparral yucca   11
225AraceLemna minutaduckweed    50
226ArecaWashingtonia filiferaCalifornia fan palm   199
227JuncaJuncus mexicanusMexican rush    8
228JuncaJuncus xiphioidesiris-leaved rush    20
229LiliaCalochortus splendenssplendid mariposa lily1    
230OrchiEpipactis giganteastream orchid3  50 
231PoaceAristida adscensionissix-weeks three-awn 510 99
232PoaceAristida purpurea var. nealleyiNealley three-awn 3  1
233PoaceAvena barbata*slender wild oats   550
234PoaceBouteloua aristidoides var. aristidoidesneedle grama    99
235PoaceBouteloua barbata var. barbatasix-weeks grama    11
236PoaceBromus diandrus*ripgut brome    40
237PoaceBromus madritensis ssp. rubens*red brome 99309999
238PoaceBromus tectorum*downy brome 35   
239PoaceCynodon dactylon*Bermuda grass 1   
240PoaceFestuca bromoides*brome fescue 40   
241PoaceFestuca octoflorahairy six-weeks fescue    20
242PoaceHilaria rigidabig galleta 103 10
243PoaceMelica frutescenstall melica1  1020
244PoaceMelica imperfectacoast-range melic   5 
245PoaceMuhlenbergia microspermalittleseed muhly    20
246PoaceMuhlenbergia rigensdeergrass    10
247PoacePennisetum setaceum*fountain grass3  1050
248PoacePoa secunda ssp. juncifoliarush blue grass 5   
249PoacePolypogon monspeliensis*rabbits-foot grass    30
250PoaceSchismus barbatus*Mediterranean schismus29999 99
251PoaceStipa speciosadesert needlegrass 1   
252ThemiDichelostemma capitatum ssp. capitatumblue dicks  1 1
253ThemiMuilla maritimamuilla 15   
254TyphaTypha domingensissouthern cattail   30 

Go to:

Copyright © 2010-2013 by Tom Chester (17), Mike Crouse (5), Vince Balch (3), Kay Madore (3), Wayne Armstrong (2), Paula Knoll (2), Adrienne Ballwey (1), Michael Charters (1), James Dillane (1), Jeff Field (1), Kate Harper (1), Frank Harris (1), Pam Pallette (1), Jim Roberts (1), Aaron Schusteff (1), Kate Shapiro (1) and Preston Taylor (1). The number in parentheses gives the number of survey days for the Hellhole Canyon area for each person, which does not include the Culp Valley portion of the California Riding and Hiking Trail.
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: 14 December 2013