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

Hellhole Palms © Tom Chester
(larger version)

Flora of Culp Valley / Hellhole Canyon

Procedure For Compiling The Checklist
Important Caveats

Maidenhair Falls © Rick Halsey
((larger version)


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: James Dillane, Michael Charters, RT Hawke, Shaun Hawke, 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.

One taxon, the Lycium species in Hellhole Canyon, could not be determined any further in the field, since there were no flowers on any of the plants. It was placed as L. andersonii in the checklist below, solely since that is the only Lycium species vouchered or observed in this area. That placement may of course be incorrect.

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.

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 Culp Valley / Hellhole Canyon

This checklist contains 328 taxa, with 204 recorded in the Culp Valley area and 238 recorded in the Hellhole Canyon area.

The composition of the checklist is very different in the two areas. Since three of our surveys were done in the Hellhole Canyon area, and very few vouchers have been collected from there, the vast majority of the Hellhole Canyon portion of the checklist comes from our surveys. Of the 238 Hellhole Canyon Taxa, 232 were from our surveys and 60 were from vouchers.

In contrast, only one of our surveys was done in the Culp Valley area, and it was done only in January. It therefore is missing a lot of the annual and perennial species. Of the 204 Culp Valley taxa, 84 were from our surveys and 167 were from vouchers. As mentioned above, a lot of Culp Valley has not yet been botanized, so this checklist is very incomplete for Culp Valley.

One of the entries in the checklist, Descurainia pinnata, is not distinct from the two subspecies also given in the checklist. It has been given separately to indicate that this species was recorded in one of the surveys, but could not be determined to subspecies since the plants were dead.

Notes on some species in the checklist:

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 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, with the Family being given by the first three letters. See Plant Family Abbreviations to decode the abbreviations. An asterisk before the Common Name indicates a non-native taxon.

There are four columns that follow the name for each taxa, one for each of the surveyed areas. Each column gives a rough estimate of the number of plants, and the number of locations for each species, in each surveyed area (#Plants / #Locations). Maximum values are 99 plants, and 9 locations. The main intent of this column is to indicate the species for which very few plants or locations were found. These are not just values that correspond to plants within touching distance of the trail, as given in my plant trail guides; these include plants seen in the area around each trail, as given in my floras.

The next two columns give the number of vouchers (# Vouchers) found in the Hellhole Canyon Area and the Culp Valley Area.

The surveyed areas are all in the Hellhole Canyon Floral Area except for the top portion of the California Riding and Hiking Trail (CA R&H), which is mostly, but not entirely, in the Culp Valley Floral Area.

The presentation of the surveyed areas in the table from left to right is in declining order of maximum elevation: 3520-2580; 2580-835; 2040-880; 1080-880 feet for CA R&H top; CA R&H bottom; Hellhole; and Little Surprise, respectively.

The elevation range for the Culp Valley Floral Area is 2800-4600 feet. The elevation range for the Hellhole Canyon Area is 835-3000 feet.

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

Version for printing, without lines and other text on this page: html (12 pages) or pdf Clickbook booklet (3 double-sided page). (See printing instructions for an explanation of these options)

#FAMScientific Name(*)Common Name#Plants / #Locations# Vouchers
CA R&HHell-
1PTEAdiantum capillus-venerismaidenhair fern  99/2   
2PTECheilanthes covilleibeady lipfern30/930/320/2 12
3PTECheilanthes parryiwoolly lipfern1/150/940/730/5 2
4PTECheilanthes viscidasticky lipfern  5/2   
5PTENotholaena californicaCalifornia cloak fern  2/1  1
6PTEPellaea mucronata var. mucronatabird's-foot fern  2/2 1 
7SELSelaginella eremophiladesert spike-moss 50/910/1  1
8CUPJuniperus californicaCalifornia juniper16/799/520/4   
9EPHEphedra sp. (2 lv'd; E. aspera?)2 lv'd ephedra 2/230/5   
10ACACarlowrightia arizonicaArizona carlowrightia   3/2 1
11ACAJusticia californicachuparosa 50/799/950/911
12AMAAmaranthus fimbriatusfringed amaranth99/940/510/9 1 
13ANARhus ovatasugar bush50/9 20/7 2 
14ANARhus trilobatabasketbush    1 
15APIApiastrum angustifoliumwild celery  5/1 1 
16APIDaucus pusillusrattlesnake weed 20/3   1
17APITauschia argutasouthern tauschia    4 
18ASCMatelea parvifoliaspearleaf 2/1   1
19ASCSarcostemma cynanchoides ssp. hartwegiiclimbing milkweed  30/3   
20ASTAdenophyllum porophylloidesSan Felipe dogweed20/720/930/91/11 
21ASTAmbrosia dumosaburroweed1/199/999/950/9  
22ASTAmbrosia psilostachyawestern ragweed  99/1   
23ASTAnisocoma acaulisscale-bud    1 
24ASTArtemisia ludoviciana ssp. albulawhite mugwort20/91/120/3   
25ASTArtemisia ludoviciana ssp. ludovicianasilver wormwood  10/2   
26ASTArtemisia tridentata ssp. tridentatabig sagebrush    1 
27ASTBaccharis salicifoliamule fat  5/3 1 
28ASTBaccharis sergiloidesdesert baccharis  30/7 2 
29ASTBebbia juncea var. asperasweetbush20/920/950/920/9  
30ASTBrickellia arguta var. argutaCalifornia spear-leaved brickellia3/31/1    
31ASTBrickellia californicaCalifornia brickellbush    2 
32ASTBrickellia desertorumdesert brickellia  1/1   
33ASTBrickellia frutescensshrubby brickellia15/626/2  2 
34ASTCalycoseris wrightiiwhite tackstem   20/9  
35ASTChaenactis carphoclinia var. carphocliniapebble pincushion 99/9 99/9  
36ASTChaenactis fremontiiFremont pincushion  99/999/911
37ASTChaenactis glabriuscula var. glabriusculayellow pincushion    3 
38ASTCirsium scariosumelk thistle    1 
39ASTConyza canadensishorseweed  1/1   
40ASTCoreopsis californica var. californicaCalifornia coreopsis    1 
41ASTDimorphotheca sinuata*African daisy  1/1   
42ASTEncelia actoniActon encelia99/9   2 
43ASTEncelia farinosabrittlebush20/499/999/940/9 2
44ASTEricameria brachylepisboundary goldenbush40/930/51/1 1 
45ASTEricameria cuneata var. spathulatawide-leaved rock goldenbush    2 
46ASTEricameria linearifolianarrowleaf goldenbush99/91/1  6 
47ASTEriophyllum confertiflorum var. confertiflorumgolden yarrow5/1     
48ASTEriophyllum wallaceiWallace's woolly daisy  99/9 42
49ASTFilago californicaCalifornia filago  99/9 1 
50ASTFilago depressadwarf filago  20/5   
51ASTGnaphalium bicolorbicolored everlasting  2/2   
52ASTGnaphalium canescens ssp. canescenswhite everlasting    1 
53ASTGnaphalium canescens ssp. microcephalumwhite everlasting    1 
54ASTGnaphalium luteo-album*common cudweed  5/1   
55ASTGutierrezia californicaCalifornia matchweed99/950/5  1 
56ASTHymenoclea salsola var. salsolacheesebush99/750/799/920/51 
57ASTLactuca serriola*prickly lettuce  5/1   
58ASTLasthenia californicagoldfields  2/1 7 
59ASTLayia glandulosawhite tidy-tips    2 
60ASTLessingia glandulifera var. glanduliferasticky lessingia    1 
61ASTMalacothrix clevelandiiannual malacothrix    1 
62ASTMalacothrix glabratadesert dandelion 5/299/920/511
63ASTMonoptilon bellioidesdesert star  99/910/3 2
64ASTPectis papposa var. papposachinch-weed20/240/930/9   
65ASTPerityle emoryiEmory's rock-daisy 20/920/950/9 1
66ASTPleurocoronis plurisetaarrow-leaf  1/1   
67ASTPluchea sericeaarrow-weed  5/1   
68ASTPorophyllum gracileodora2/25/31/1   
69ASTRafinesquia californicaCalifornia chicory    1 
70ASTRafinesquia neomexicanadesert chicory  10/930/911
71ASTSenecio californicusCalifornia groundsel    1 
72ASTSenecio flaccidus var. monoensisMono ragwort    3 
73ASTSenecio mohavensisMojave ragwort 50/95/130/9  
74ASTSolidago californicagoldenrod  40/2   
75ASTSonchus asper ssp. asper*prickly sow thistle  2/1   
76ASTSonchus oleraceus*sow thistle  1/1   
77ASTStephanomeria exigua ssp. exiguaslender wreathplant20/4 1/1   
78ASTStephanomeria pauciflora var. pauciflorawire-lettuce50/930/999/95/32 
79ASTTrichoptilium incisumyellow-head 20/4 10/1  
80ASTTrixis californica var. californicaCalifornia trixis1/125/950/95/322
81ASTUropappus lindleyisilver puffs  1/12/1  
82ASTViguiera parishiiParish's viguiera99/930/950/72/121
83BIGChilopsis linearis ssp. arcuatadesert-willow  99/9   
84BORAmsinckia menziesii var. intermediacommon fiddleneck  99/9 2 
85BORAmsinckia menziesii var. menziesiismall-flowered fiddleneck 20/2 10/1  
86BORAmsinckia tessellata var. tessellatabristly fiddleneck   99/9  
87BORCryptantha angustifolianarrow-leaved cryptantha   99/9  
88BORCryptantha barbigerabearded cryptantha  99/920/911
89BORCryptantha intermediapopcorn flower    11
90BORCryptantha maritimaGuadalupe cryptantha 99/9 99/9 1
91BORCryptantha micranthapurple-root cryptantha    3 
92BORCryptantha muricataprickly cryptantha    1 
93BORCryptantha pterocaryawing-nut cryptantha   30/91 
94BORPectocarya heterocarpachuckwalla pectocarya   20/1  
95BORPectocarya penicillatacombseed    1 
96BORPectocarya recurvatacurvenut combseed   99/9  
97BORPectocarya setosamoth combseed    1 
98BORPlagiobothrys arizonicusArizona popcorn flower    1 
99BRAArabis perennansperennial rock-cress3/1   1 
100BRAAthysanus pusillusdwarf athysanus    1 
101BRABrassica tournefortii*Asian mustard20/320/999/999/9 1
102BRACaulanthus simulansPayson's wild cabbage    2 
103BRADescurainia pinnatawestern tansy-mustard 30/5    
104BRADescurainia pinnata ssp. glabrasmooth western tansy-mustard   20/11 
105BRADescurainia pinnata ssp. halictorumalkali western tansy-mustard  99/9 11
106BRADraba cuneifoliawedge-leaved draba    1 
107BRAErysimum capitatum ssp. capitatumwestern wallflower    1 
108BRAGuillenia lasiophyllaCalifornia mustard   10/121
109BRALepidium lasiocarpum var. lasiocarpumhairy-podded pepper-grass 99/999/950/9  
110BRALyrocarpa coulteri var. palmeriCoulter's lyrepod 20/31/11/1 1
111BRARorippa nasturtium-aquaticumwater cress  10/1   
112BRASisymbrium irio*London rocket   5/2 1
113BRASisymbrium orientale*Oriental mustard  10/2   
114BRAThysanocarpus curvipesfringe-pod     1
115BRAThysanocarpus laciniatuslace-pod    1 
116CACEchinocereus engelmanniiEngelmann's hedgehog cactus15/599/940/91/1 1
117CACFerocactus cylindraceusCalifornia barrel cactus2/299/920/320/9  
118CACMammillaria dioicaCalifornia fish-hook cactus 38/92/15/5 1
119CACOpuntia basilaris var. basilarisbeavertail cactus30/999/999/95/54 
120CACOpuntia bigeloviiteddy-bear cholla 99/599/91/1  
121CACOpuntia ganderiGander's cholla99/999/999/950/92 
122CACOpuntia parryicane cholla    1 
123CACOpuntia vaseyiVasey's prickly-pear15/317/3    
124CAMNemacladus rubescensdesert nemacladus   3/1 2
125CAPIsomeris arboreabladderpod  40/5   
126CAPSambucus mexicanablue elderberry  1/1 1 
127CHEChenopodium murale*nettle-leaved goosefoot  10/32/1  
128CRACrassula connatapygmy-weed  10/199/1  
129CRADudleya saxosa ssp. aloidesdesert dudleya10/55/42/1 2 
130CUCCucurbita palmatacoyote melon1/1  1/11 
131CUCMarah macrocarpus var. macrocarpuswild-cucumber  2/2 4 
132CUSCuscuta californica var. papillosapapillate dodder5/1     
133ERIArctostaphylos glaucabigberry manzanita6/1   2 
134EUPBernardia myricifoliawestern bernardia10/32/21/1 1 
135EUPChamaesyce albomarginatarattlesnake weed10/2   1 
136EUPChamaesyce arizonicaArizona spurge 1/1    
137EUPChamaesyce melanadeniared-gland spurge99/950/950/2 5 
138EUPChamaesyce micromeraSonoran spurge    1 
139EUPChamaesyce polycarpasmall-seeded spurge 99/799/950/912
140EUPChamaesyce setilobaYuma spurge    1 
141EUPDitaxis lanceolatanarrowleaf ditaxis 50/950/920/9 1
142EUPDitaxis neomexicanaNew Mexico ditaxis1/150/950/9   
143EUPStillingia linearifolialinear-leaved stillingia4/21/130/3   
144FABAcacia greggiicatclaw99/930/599/95/1  
145FABAstragalus didymocarpus var. dispermusdwarf white milk-vetch    2 
146FABAstragalus palmeriPalmer's milk-vetch    2 
147FABDalea mollissimadowny dalea 3/11/1   
148FABLotus argophyllus var. argophyllussouthern California silver-lotus    1 
149FABLotus rigidusdesert lotus99/920/910/2 12
150FABLotus salsuginosus var. brevivexillusshort-bannered coastal lotus30/930/950/920/91 
151FABLotus scoparius var. brevialatusshort-winged deerweed30/5 3/2 1 
152FABLotus strigosusstrigose lotus  20/9 3 
153FABLupinus arizonicusArizona lupine   40/9  
154FABLupinus bicolordwarf lupine    4 
155FABLupinus concinnusbajada lupine1/15/25/2 31
156FABLupinus sparsiflorusCoulter's lupine  99/95/11 
157FABMelilotus indicus*sourclover  50/9   
158FABProsopis glandulosa var. torreyanahoney mesquite  30/4   
159FABPsorothamnus schottiiindigo bush 99/799/920/9  
160FAGQuercus cornelius-mulleridesert scrub oak30/7   41
161FAGQuercus palmeriPalmer's oak    1 
162FOUFouquieria splendens ssp. splendensocotillo 50/399/950/9 4
163GARGarrya flavescensashy silk tassel    1 
164GERErodium cicutarium*redstem filaree99/999/999/999/9  
165GERErodium texanumTexas filaree   5/1  
166GRORibes indecorumwhite-flowering currant3/3   1 
167GRORibes quercetorumoak gooseberry    3 
168HYDEmmenanthe penduliflora var. penduliflorawhispering bells 1/120/930/922
169HYDEriodictyon trichocalyx var. lanatumsmoothleaf yerba santa  50/5  1
170HYDEucrypta chrysanthemifolia var. bipinnatifidaeucrypta  5/2 1 
171HYDNama demissum var. demissumpurple mat  2/23/12 
172HYDNemophila menziesii var. menziesiibaby blue eyes    2 
173HYDPhacelia affinislimestone phacelia    2 
174HYDPhacelia brachylobashort-lobed phacelia    1 
175HYDPhacelia cicutaria var. hispidacaterpillar phacelia  5/110/3  
176HYDPhacelia crenulata var. minutifloralittle-flowered heliotrope phacelia   30/9  
177HYDPhacelia curvipescurve-stem phacelia    1 
178HYDPhacelia distanscommon phacelia99/599/999/999/932
179HYDPhacelia minorwild canterbury bells  10/9 1 
180HYDPhacelia parryiParry's phacelia    1 
181HYDPhacelia pedicellatapedicellate phacelia   10/1  
182HYDPhacelia ramosissima var. latifoliabranching phacelia  50/7   
183HYDPholistoma membranaceumwhite fiesta flower 50/399/9 1 
184KRAKrameria erectaPima rhatany40/950/910/2 2 
185KRAKrameria grayiwhite rhatany 2/210/230/9  
186LAMHyptis emoryidesert-lavender 50/799/920/9 2
187LAMSalvia apianawhite sage6/3 2/2 1 
188LAMSalvia columbariaechia20/21/199/9 2 
189LAMSalvia eremostachyadesert sage 10/3   3
190LAMSalvia vaseyiVasey's sage 10/54/42/1 1
191LAMStachys ajugoides var. rigidarigid hedge-nettle  5/1   
192LOAMentzelia affinisyellow blazing star   20/5  
193LOAMentzelia albicauliswhite-stemmed blazing star    2 
194LOAMentzelia involucratabracted blazing star 5/3 20/9  
195LOAMentzelia veatchianaVeatch's blazing star    2 
196LYTLythrum californicumCalifornia loosestrife  20/1   
197MALHibiscus denudatusrock hibiscus 30/52/210/5 1
198MALHorsfordia newberryiNewberry's velvet mallow  5/2  1
199MALMalacothamnus aboriginumIndian Valley bush mallow  50/9 2 
200MALSphaeralcea ambigua var. ambiguaapricot mallow3/33/350/9   
201NYCAllionia incarnatatrailing four o'clock  5/1   
202NYCBoerhavia coccineascarlet spiderling  10/1   
203NYCBoerhavia intermediafivewing spiderling99/999/999/9   
204NYCMirabilis bigelovii var. retrorsaBigelow's desert four-o'clock30/930/940/75/51 
205NYCMirabilis multiflora var. pubescensgiant four o'clock    2 
206OLEMenodora scopariabroom twinberry5/230/6    
207ONACamissonia boothii ssp. condensataBooth's evening primrose   20/9 1
208ONACamissonia californicaCalifornia suncup5/199/999/999/911
209ONACamissonia cardiophylla ssp. cardiophyllaheartleaf sun-cup   20/3  
210ONACamissonia claviformis ssp. peirsoniibrown-eyed primrose  50/9   
211ONACamissonia confusaSan Bernardino sun-cup    1 
212ONACamissonia pallida ssp. pallidapale sun-cup    21
213ONACamissonia strigulosastrigose sun-cup    1 
214ONAEpilobium canum ssp. latifoliummountain California-fuchsia  50/2 1 
215ONAGaura drummondii*Drummond's gaura    2 
216ONAOenothera californica ssp. avitaCalifornia evening-primrose    1 
217ONAOenothera californica ssp. californicaCalifornia evening-primrose    1 
218ONAOenothera elata ssp. hirsutissimaHooker's evening-primrose  2/1   
219PAPArgemone munitaprickly poppy  5/2   
220PAPDicentra chrysanthagolden ear drops    1 
221PAPEschscholzia californicaCalifornia poppy  1/1 1 
222PAPEschscholzia minutiflora ssp. minutiflorasmall-flowered poppy 10/299/940/913
223PAPEschscholzia parishiiParish's poppy  2/299/921
224PAPPlatystemon californicuscream cups    5 
225PLAPlantago major*common plantain  5/1   
226PLAPlantago ovatadesert plantain99/999/9 99/9  
227PLAPlatanus racemosawestern sycamore  20/5   
228POLEriastrum eremicum ssp. eremicumdesert woolly-star99/999/910/130/92 
229POLGilia capitata ssp. abrotanifoliaglobe gilia  30/6 1 
230POLGilia stellatastar gilia  1/150/911
231POLLangloisia setosissima ssp. setosissimabristly langloisia   99/9  
232POLLinanthus bigeloviiBigelow's linanthus    1 
233POLLinanthus dianthiflorusground pink    1 
234POLLinanthus lemmoniiLemmon's linanthus    4 
235POLLoeseliastrum matthewsiidesert calico  2/120/1  
236POLChorizanthe brevicornu var. brevicornubrittle spineflower 5/110/940/9  
237POLEriogonum elongatum var. elongatumlong-stemmed buckwheat1/1   1 
238POLEriogonum fasciculatum var. polifoliumCalifornia buckwheat99/950/910/3  1
239POLEriogonum gracile var. gracileslender buckwheat    1 
240POLEriogonum gracile var. incultumslender buckwheat30/5 3/1   
241POLEriogonum inflatumdesert trumpet 1/150/930/9 1
242POLEriogonum maculatumspotted buckwheat     2
243POLEriogonum molestumpineland buckwheat    1 
244POLEriogonum thomasiiThomas' buckwheat   50/9 1
245POLEriogonum wrightii var. nodosumWright's buckwheat10/330/45/3   
246POLOxytheca trilobatathree-lobed oxytheca    1 
247POLPterostegia drymarioidesthreadstem 2/13/11/11 
248POLRumex conglomeratus*whorled dock  1/1   
249PORClaytonia parviflora ssp. parvifloranarrow-leaved miner's lettuce  3/1 1 
250RANClematis lasianthavirgin's bower  1/1   
251RANDelphinium parishii ssp. subglobosumintermediate larkspur 10/32/2   
252RHACeanothus greggii var. perplexanscupped-leaf ceanothus    3 
253RHARhamnus ilicifoliahollyleaf redberry    1 
254RHAZiziphus parryi var. parryilotebush50/910/22/2 1 
255ROSAdenostoma fasciculatumchamise    1 
256ROSCercocarpus betuloides var. betuloidesbirch-leaf mountain-mahogany15/4   2 
257ROSPrunus fremontiidesert apricot50/920/250/9 4 
258RUBGalium andrewsii ssp. andrewsiiphlox-leaved bedstraw    1 
259RUBGalium angustifolium ssp. borregoenseBorrego bedstraw40/5 2/2 5 
260RUBGalium stellatum var. eremicumstar-flowered bedstraw 10/4    
261SALPopulus fremontii ssp. fremontiiFremont cottonwood  2/2   
262SALSalix exiguanarrowleaf willow  10/3   
263SALSalix laevigatared willow  20/5   
264SAUAnemopsis californicayerba mansa    1 
265SCRAntirrhinum filipesdesert twining snapdragon 4/4    
266SCRCastilleja exserta ssp. exsertapurple owl's-clover    1 
267SCRCastilleja foliolosawoolly Indian paintbrush 1/1  1 
268SCRCollinsia concolorsouthern Chinese houses  20/6 2 
269SCRKeckiella antirrhinoides var. microphyllalittle-leaved chaparral beard-tongue5/3     
270SCRMimulus aurantiacusbush monkeyflower    2 
271SCRMimulus bigelovii var. bigeloviiBigelow's monkeyflower  99/95/2 1
272SCRMimulus cardinalisscarlet monkeyflower  5/1   
273SCRMohavea confertifloraghost flower   10/2  
274SCRPenstemon centranthifoliusscarlet bugler    2 
275SCRScrophularia californica ssp. floribundaCalifornia bee plant    1 
276SCRVeronica anagallis-aquatica*water speedwell  5/1   
277SIMSimmondsia chinensisjojoba10/750/950/95/21 
278SOLDatura discolordesert thornapple 5/5    
279SOLDatura wrightiisacred datura  1/1   
280SOLLycium andersoniiAnderson's desert-thorn4/3 30/3   
281SOLNicotiana obtusifoliadesert tobacco  20/51/1  
282SOLPhysalis crassifoliathick-leaved ground cherry 20/95/51/1  
283SOLSolanum douglasiiwhite nightshade  1/1   
284SOLSolanum parishiiParish's purple nightshade  2/1 1 
285STEAyenia compactaayenia 5/350/52/1  
286TAMTamarix sp.*tamarisk  2/1   
287URTParietaria hespera var. hesperapellitory  99/930/9 1
288VISPhoradendron californicumdesert mistletoe30/9 10/3 1 
289VITVitis girdianawild grape  10/1   
290ZYGFagonia laevisCalifornia fagonia 99/920/550/911
291ZYGLarrea tridentatacreosote bush 50/799/999/9  
292AREWashingtonia filiferaCalifornia fan palm  99/5   
293JUNJuncus mexicanusMexican rush    1 
294JUNJuncus oxymerispointed rush    1 
295JUNJuncus xiphioidesiris-leaved rush  20/2   
296LILAgave desertidesert agave50/999/999/910/2  
297LILAllium fimbriatum var. fimbriatumfringed onion    2 
298LILCalochortus concolorgolden-bowl mariposa    1 
299LILDichelostemma capitatum ssp. capitatumblue dicks  1/11/11 
300LILMuilla maritimamuilla2/115/3    
301LILNolina parryiParry's nolina2/1   5 
302LILYucca schidigeraMohave yucca30/9   5 
303LILYucca whippleichaparral yucca1/1   3 
304ORCEpipactis giganteastream orchid     3
305POAAchnatherum coronatumgiant needlegrass    1 
306POAAchnatherum parishiiParish's needlegrass1/1     
307POAAchnatherum speciosumdesert needlegrass50/91/1  4 
308POAAristida adscensionissix-weeks three-awn20/25/1    
309POAAristida purpurea var. nealleyiNealley three-awn 3/31/1   
310POAAristida purpurea var. parishiiParish three-awn    1 
311POAAvena barbata*slender wild oats  50/5   
312POABouteloua aristidoides var. aristidoidesneedle grama  20/5   
313POABromus diandrus*ripgut brome2/1 40/2   
314POABromus madritensis ssp. rubens*red brome99/930/999/930/9  
315POABromus tectorum*downy brome 5/1    
316POACynodon dactylon*Bermuda grass 1/1    
317POAMelica frutescenstall melica5/1 20/4 21
318POAMuhlenbergia microspermalittleseed muhly  20/1   
319POAMuhlenbergia rigensdeergrass  5/1   
320POAPennisetum setaceum*fountain grass  20/2  3
321POAPleuraphis rigidabig galleta 5/310/13/1  
322POAPoa secundaone-sided blue grass    1 
323POAPoa secunda ssp. juncifoliarush blue grass30/25/1    
324POAPolypogon monspeliensis*rabbits-foot grass  30/3   
325POASchismus barbatus*Mediterranean schismus10/110/199/999/9 2
326POAVulpia microstachys var. paucifloraPacific fescue    1 
327POAVulpia octoflora var. hirtellahairy six-weeks fescue  20/5 1 
328TYPTypha latifoliabroadleaf cattail    1 

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