Flora of Smoke Tree and Coachwhip Canyons



This checklist is a start at a flora of Smoke Tree and Coachwhip Canyons. It was made from field surveys, iNaturalist observations, and vouchers.

The field surveys include:

The Smoke Tree / Coachwhip Canyon area is delineated by the red rectangle in the following map:

The rest of this text has not been updated since 1 December 2008, except for the checklist.

The route surveyed on 26 February 2008 is shown in red on the following map; the route surveyed on 28 November 2008 is shown in green:

There is a fairly large area for parking along either side of the road at mile marker 34.5 on S22 for Smoke Tree Canyon, and at mile marker 34.8 for Coachwhip Canyon.

Smoke Tree Canyon Survey

The survey on 26 February 2008 covered 2.2 miles from elevation 920 feet to 1560 feet, and thus did not cover the full extent of the Canyon to the natural rock tanks shown in the above map.

The survey found 80 taxa that could be fairly-confidently identified, given in the checklist below, along with five other species that could not yet be fully identified. Those species were: an unknown grass perhaps developing an inflorescence like Achnatherum; a suncup with no basal rosette; a Boerhavia species with a mostly terminal inflorescence with short peduncles; and two Ephedra species, one possibly similar to E. viridis and the other possibly similar to E. fasciculata var. clokeyi.

The locations of (generally) the first occurrence of all 85 taxa are shown in the plot below:

Some taxa were found at the same location, especially near the beginning of the survey, so there are fewer than 85 points plotted above.

Usually, most of the taxa in any survey are found near the starting point, but the above plot shows that we continued to encounter significant numbers of new species going up the canyon.

Coachwhip Canyon Survey

The survey on 28 November 2008 covered 2.8 miles from elevation 910 feet to 1400 feet.

The survey found 53 taxa that could be fairly-confidently identified, given in the checklist below, along with five other species that could not yet be fully identified. Those species were: two different Cryptantha species, at least one of which was very abundant; a perennial small grass; an abundant dead annual with broad basal leaves and capsule fruit; and an unknown very abundant dead Asteraceae annual.

Note that the Coachwhip Canyon Survey is very incomplete for annuals and perennials, since it was done in late November.

Additional Taxa in the Checklist

See the Introduction.

Checklist for Smoke Tree Canyon


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

The column with label BW links to the photo gallery page for each species at Fred Melgert and Carla Hoegen's BorregoWildflowers site.

The last two columns give the minimum number of plants observed in the sum of all field surveys, up to a maximum number of 99, for each canyon; CW for Coachwhip and ST for Smoke Tree. A V in this column indicates a species vouchered from that canyon but which we have not yet observed. An iNat in this column indicates a species with an iNaturalist observation, which has no abundance recorded for it.

This version of the checklist also includes additional species observed in the Truckhaven Rocks area. Those species have no entry in either of the last two columns.

Version for printing, without lines and other text on this page: html (4 pages) or pdf Clickbook booklet (1 double-sided page). (See printing instructions for an explanation of these options)

Version for printing for just Coachwhip Canyon: html (4 pages) or pdf Clickbook booklet (1 double-sided page).

#FamilScientific Name
Link goes to the Jepson eflora
(*)Common Name
Link goes to Calphotos
1PteriCheilanthes parryiwoolly lipfernBW 5
2EphedEphedra asperaMormon teaBW 56
3AmaraAmaranthus fimbriatusfringed amaranthBW  
4AmaraAmaranthus hybridus*slim amaranth   
5AmaraTidestromia suffruticosa var. oblongifoliaArizona honeysweetBW1 
6ApocyAsclepias albicanswhite-stemmed milkweedBW2iNat
7ApocyAsclepias subulatarush milkweedBW10 
8ApocyFunastrum hirtellumrambling milkweedBW4040
9ApodaPilostyles thurberiThurber's pilostylesBW  
10AsterAdenophyllum porophylloidesSan Felipe dogweedBW 14
11AsterAmbrosia dumosaburroweedBW9999
12AsterAmbrosia salsola var. salsolacheesebushBW9999
13AsterBahiopsis parishiiParish's goldeneyeBW 1
14AsterBebbia juncea var. asperasweetbushBW9999
15AsterBrickellia desertorumdesert brickelliaBW 1?
16AsterCalycoseris parryiyellow tackstemBW  
17AsterCalycoseris wrightiiwhite tackstemBW299
18AsterChaenactis carphoclinia var. carphocliniapebble pincushionBW 99
19AsterChaenactis fremontiiFremont pincushionBW 1
20AsterChaenactis stevioidesdesert pincushionBW5099
21AsterDicoria canescensdesert dicoriaBW  
22AsterEncelia farinosabrittlebushBW9999
23AsterGeraea canescenshairy desert-sunflowerBW505
24AsterIsocoma acradenia var. acradeniaentire-leaved alkali goldenbushBW1 
25AsterLogfia filaginoidesCalifornia filagoBW 4
26AsterMalacothrix glabratadesert dandelionBW102
27AsterMonoptilon bellioidesdesert starBW106
28AsterPalafoxia arida var. aridaSpanish needleBW9999
29AsterPectis papposa var. papposachinch-weedBWiNatiNat
30AsterPerityle emoryiEmory's rock-daisyBW9999
31AsterPeucephyllum schottiipygmy-cedarBW 13
32AsterPleurocoronis plurisetaarrow-leafBW2099
33AsterPsathyrotes ramosissimaturtlebackBW  
34AsterRafinesquia neomexicanadesert chicoryBW3066
35AsterSenecio mohavensisMojave ragwortBW 24
36AsterSonchus oleraceus*sow thistleBW  
37AsterStephanomeria pauciflorawire-lettuceBW4056
38AsterTrichoptilium incisumyellow-headBW1045
39AsterTrixis californica var. californicaCalifornia trixisBW 10
40AsterXylorhiza orcuttiiOrcutt's woody-asterBW99 
41BignoChilopsis linearis ssp. arcuatadesert-willowBW  
42BoragCryptantha angustifolianarrow-leaved cryptanthaBW9999
43BoragCryptantha barbigera var. barbigerabearded cryptanthaBW3050
44BoragCryptantha barbigera var. fergusoniaeSanta Rosa Mountain bearded cryptanthaBWiNat99
45BoragCryptantha decipiensgravel cryptantha  V
46BoragCryptantha maritimaGuadalupe cryptanthaBW9999
47BoragCryptantha micrantha var. micranthared-root cryptanthaBW5 
48BoragCryptantha nevadensis var. nevadensisNevada cryptanthaBW 3
49BoragCryptantha pterocaryawing-nut cryptanthaBW 15
50BoragCryptantha utahensisscented cryptanthaBW 2
51BoragEmmenanthe penduliflora var. penduliflorawhispering bellsBW 30
52BoragEucrypta chrysanthemifolia var. bipinnatifidaeucryptaBW 8
53BoragPectocarya heterocarpachuckwalla pectocaryaBW599
54BoragPectocarya peninsularisBaja pectocaryaBW 99
55BoragPectocarya platycarpabroad-fruited combseedBW505
56BoragPectocarya recurvatacurvenut combseedBW 31
57BoragPhacelia crenulata var. ambiguaheliotrope phaceliaBW9999
58BoragPhacelia crenulata var. minutifloralittle-flowered heliotrope phaceliaBW1 
59BoragPhacelia pedicellatapedicellate phaceliaBW 3
60BoragPlagiobothrys jonesiiJones' popcorn flower  99
61BoragTiquilia palmeriPalmer's coldeniaBW 2
62BoragTiquilia plicataplicate coldeniaBW  
63BrassBrassica tournefortii*Sahara mustardBW9999
64BrassCaulanthus cooperiCooper's jewel-flowerBW 1
65BrassCaulanthus lasiophyllusCalifornia mustardBW299
66BrassDescurainia pinnatawestern tansy-mustardBW10 
67BrassDithyrea californicaspectacle-podBW991
68BrassDraba cuneifoliawedge-leaved drabaBW 99
69BrassLepidium lasiocarpum ssp. lasiocarpumhairy-podded pepper-grassBW9999
70BrassSisymbrium irio*London rocketBW2099
71BrassSisymbrium orientale*Oriental mustardBW 2
72BrassStreptanthella longirostrislongbeak streptanthellaBW22
73CactaCylindropuntia bigeloviiteddy-bear chollaBW1799
74CactaCylindropuntia echinocarpasilver chollaBW2043
75CactaCylindropuntia ganderiGander's chollaBW6011
76CactaCylindropuntia ramosissimapencil chollaBW1047
77CactaFerocactus cylindraceusCalifornia barrel cactusBW1037
78CactaMammillaria tetrancistradesert fish-hook cactusBW5 
79CactaOpuntia basilaris var. basilarisbeavertail cactusBW5516
80CampaNemacladus glanduliferusglandular nemacladusBWiNat53
81CampaNemacladus tenuis var. tenuisdesert threadplantBW 20
82CaryoAchyronychia cooperifrost matBW191
83ChenoAtriplex canescens var. laciniataCaleb four-wing saltbushBW12 
84ChenoAtriplex hymenelytradesert hollyBW9959
85ChenoAtriplex polycarpacattle saltbushBW109
86ChenoChenopodium murale*nettle-leaved goosefootBWV 
87CleomCleomella obtusifoliaMojave cleomellaBWV 
88CrossCrossosoma bigeloviirock crossosomaBW 2
89EuphoChamaesyce melanadeniared-gland spurgeBW  
90EuphoChamaesyce micromeraSonoran spurgeBW  
91EuphoChamaesyce polycarpasmall-seeded spurgeBW6040
92EuphoChamaesyce setilobastarfish (Yuma) spurgeBW 99
93EuphoDitaxis lanceolatanarrowleaf ditaxisBW 45
94EuphoDitaxis neomexicanaNew Mexico ditaxisBW  
95EuphoDitaxis serrata var. californicaCalifornia ditaxisBW  
96EuphoEuphorbia erianthabeetle spurgeBW 20
97EuphoStillingia spinulosaannual stillingiaBW5 
98FabacAcmispon maritimus var. brevivexillusshort-bannered coastal lotusBW 25
99FabacAcmispon rigidusdesert lotusBW 1
100FabacAcmispon strigosusstrigose lotusBW9999
101FabacAstragalus crotalariaeSalton milk-vetchBW1 
102FabacAstragalus nuttallianus var. cedrosensisCedros milk-vetchBW iNat
103FabacDalea mollissilky daleaBWiNat99
104FabacDalea mollissimadowny daleaBW 1
105FabacLupinus arizonicusArizona lupineBW9999
106FabacOlneya tesotaironwoodBW 1
107FabacParkinsonia floridablue palo verdeBW 4
108FabacPsorothamnus emoryiEmory's indigo-bushBW6 
109FabacPsorothamnus schottiiindigo bushBW7099
110FabacPsorothamnus spinosussmoke treeBW9999
111FabacSenegalia greggiicatclawBW4099
112FouquFouquieria splendens ssp. splendensocotilloBW9999
113GeranErodium cicutarium*redstem filareeBW iNat
114GeranErodium texanumTexas filareeBW 3
115KrameKrameria bicolorwhite rhatanyBW6032
116KrameKrameria erectaPima rhatanyBW 10
117LamiaHyptis emoryidesert-lavenderBW4099
118LamiaSalvia vaseyiVasey's sageBW 5
119LoasaMentzelia involucratabracted blazing starBWiNat14
120LoasaPetalonyx thurberi ssp. thurberiThurber's sandpaper-plantBW3023
121MalvaAyenia compactaayeniaBW 2
122MalvaEremalche rotundifoliadesert five-spotBW 1
123MalvaHibiscus denudatusrock hibiscusBW139
124MalvaHorsfordia newberryiNewberry's velvet mallowBW 84
125MalvaMalva parviflora*cheeseweedBW  
126MontiCalyptridium monandrumsand cressBW 38
127MontiCistanthe ambiguadead man's fingersBW505
128NyctaAbronia villosa var. villosahairy sand-verbenaBW9999
129NyctaAllionia incarnata var. incarnatasmall-flowered trailing four o'clockBW299
130NyctaBoerhavia coccineascarlet spiderlingBW 4
131NyctaBoerhavia triquetra var. intermediafivewing spiderlingBW 20
132NyctaMirabilis laevis var. retrorsaBigelow's desert four-o'clockBW299
133OnagrCamissoniopsis pallida ssp. pallidapale suncupBW 1
134OnagrChylismia cardiophylla ssp. cardiophyllaheartleaf suncupBW 23
135OnagrChylismia claviformis ssp. peirsoniibrown-eyed primroseBW9999
136OnagrEremothera boothii ssp. condensataBooth's evening primroseBW1099
137OnagrEremothera chamaenerioideslong-fruit suncupBW 28
138OnagrEulobus californicusCalifornia suncupBW9999
139OnagrOenothera deltoides ssp. deltoidesdune primroseBW1 
140OrobaOrobanche cooperiCooper's broomrapeBW 2
141PapavEschscholzia minutiflora ssp. minutiflorasmall-flowered poppyBW9999
142PapavEschscholzia parishiiParish's poppyBW2099
143PlantMohavea confertifloraghost flowerBW 28
144PlantPlantago ovatadesert plantainBW9999
145PolemAliciella latifolia ssp. latifoliabroad-leaf giliaBW7099
146PolemGilia stellatastar giliaBW399
147PolemLangloisia setosissima ssp. setosissimabristly langloisiaBW49
148PolemLinanthus jonesiiJones' linanthusBW 76
149PolemLoeseliastrum matthewsiidesert calicoBW  
150PolemLoeseliastrum schottiiSchott's calicoBW 30
151PolygChorizanthe brevicornu var. brevicornubrittle spineflowerBW3099
152PolygChorizanthe corrugatawrinkled spineflowerBW 2
153PolygChorizanthe rigidadevil's spineflowerBW131
154PolygEriogonum deflexum var. deflexumflat-topped buckwheatBW207
155PolygEriogonum inflatumdesert trumpetBW1040
156PolygEriogonum thomasiiThomas' buckwheatBW4099
157PolygEriogonum trichopeslittle desert trumpetBW  
158PolygEriogonum wrightii var. nodosumWright's buckwheatBW 24
159PolygPterostegia drymarioidesfairy bowties, threadstemBW 99
160RubiaGalium stellatumstar-flowered bedstrawBW 2
161SolanDatura discolordesert thornappleBW 43
162SolanLycium brevipes var. brevipesdesert boxthornBW  
163SolanLycium cooperiCooper's boxthornBW V
164SolanNicotiana obtusifoliadesert tobaccoBW 5
165SolanPhysalis crassifoliathick-leaved ground cherryBW 11
166ViscaPhoradendron californicumdesert mistletoeBW2372
167ZygopFagonia pachyacanthasticky fagoniaBWiNat54
168ZygopLarrea tridentatacreosote bushBW9999
169AgavaAgave deserti var. desertidesert agaveBW 17
170AgavaHesperocallis undulatadesert lilyBW1051
171PoaceAristida adscensionissix-weeks three-awnBW2099
172PoaceAristida purpureapurple three-awnBW 1
173PoaceBouteloua aristidoides var. aristidoidesneedle gramaBW 2
174PoaceBouteloua barbata var. barbatasix-weeks gramaBW  
175PoaceFestuca bromoides*brome fescue  10
176PoaceHilaria rigidabig galletaBW9999
177PoaceMuhlenbergia microspermalittleseed muhlyBW 3
178PoacePennisetum setaceum*fountain grassBWiNat 
179PoaceSchismus barbatus*Mediterranean schismusBW9999
180PoaceStipa parishii var. parishiiParish's needlegrassBW 1

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Copyright © 2008-2019 by Tom Chester, Walt Fidler, Carla Hoegen, Fred Melgert, Nancy Accola, Kate Harper, Joe Woods, Wayne Armstrong, Mike Crouse, James Dillane, Don Rideout, Dave Stith, Ann Howald, and Bill Sullivan
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: 12 March 2019