Flora of southeast Granite Mountain, Anza-Borrego Desert State Park



Granite Mountain is a fairly-well-isolated large mountain that towers over the San Felipe Valley to the north, and Mason Valley to the south. It spans 6.5 miles east-west, and 4.0 miles north-south. It is on the immediate east of the Laguna Escarpment, southwest of Julian and Banner, and shares many montane species with those neighbors on its western side. It is on the immediate west of Shelter / Earthquake / Blair Valley, and shares many desert species with those neighbors on its eastern side.

We have long wanted to do a flora of the different sides of Granite Mountain, to document how the flora changes with cardinal direction. The checklist here is a first attempt to produce a flora of the southeast side of Granite Mountain. The flora is almost certain to be quite incomplete since much of Granite Mountain is very steep and difficult to access.

The southeast side has a north-south extent of 2.7 miles, and an east-west extent of 4.0 miles. It reaches its lowest elevation of 2300 feet at the junction of Box Canyon and Vallecito Wash on its southeasternmost end. The elevation increases to 2600 feet on its easternmost extent at the north end of Blair Valley; and to 2800 feet on its southern end, immediately south of the peak, in Rodriguez Canyon. The peak of Granite Mountain is at 5633 feet.

Fig. 1 shows a Google Earth view of Granite Mountain from the southeast.

Fig. 1. A Google Earth view of Granite Mountain from the southeast. The blue track is the route surveyed in Hornblende Canyon on 3 March 2014. Click on the picture to see a larger area.

This list comes from:

The field surveys were done in a very dry year, so many annual species were missing, and the number of plants observed for annual species that were present are undoubtedly very much lower than would be observed in a wetter year.

The union of the above lists contains 262 taxa. To make the Checklist more complete for use in future fieldwork, the Checklist includes an additional 26 species found in a survey of nearby Rainbow Canyon and Box Canyon. Some of those species may not actually be present in southeast Granite Mountain.

Fig. 2 shows the voucher locations and some of the localities.

Fig. 2. Geographic locations of vouchers (red dots) in a rectangle containing the se Granite Mountain area. Vouchers are almost entirely solely from the base of Granite Mountain, except for Cool Canyon.

Checklist for southeast Granite Mountain

See Information about the order in which the species are presented, and the links from the Scientific Name and Common Name.

The version of the Cool Canyon Flora used here is out of date; see Flora of Cool Canyon for a later version.

The columns with the header #Pls give the minimum number of plants observed in Cool Canyon (CL) and Hornblende Canyon (HB). Additional species for both canyons are noted from vouchers, marked with V. Additional species in Hornblende Canyon are noted from online photos by Carla Hoegen and Fred Melgert, P for photos from the lower canyon (4 species), and U for photos on a trip through the length of the canyon to Granite Peak (2 species).

Our survey of Hornblende Canyon covered the first 2.0 miles, elevations 2400 to 3100 feet.

Our survey of Cool Canyon covered 1.6 miles, consisting of 0.93 miles of the main canyon up to the junction with the uppermost tributary on the right; 0.15 miles of the tributary from the west; and 0.55 miles of the uppermost tributary on the right, elevations 2600 to 3400 feet.

The column labeled #V gives the number of vouchers for each taxon from the Consortium, with a maximum value of 9. Vouchers are primarily from 2300 to 2800 feet elevation, with a small number from 3000 to 4000 feet, and one voucher from 4400 feet elevation.

The vouchers in Cool Canyon are primarily from 2400 to 2800 feet elevation (108 out of 125 with elevations), with the rest from 3000 to 4000 feet.

If there is no entry in any of the last three columns, the species was from the Rainbow Canyon / Box Canyon surveys (example: Justicia californica).

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
Link goes to the Jepson eflora
(*)Common Name
Link goes to Calphotos
1SelSelaginella bigeloviiBigelow's spike-moss29999
2SelSelaginella eremophiladesert spike-moss29999
3PteCheilanthes covilleibeady lipfern49999
4PteCheilanthes viscidasticky lipfern 310
5PteNotholaena californica ssp. californicaCalifornia cloak fern1510
6PtePellaea mucronata var. mucronatabird's-foot fern335
7CupJuniperus californicaCalifornia juniper25075
8EphEphedra asperaMormon tea98075
9EphEphedra californicadesert tea9  
10AcaJusticia californicachuparosa   
11AmaAmaranthus fimbriatusfringed amaranth29940
12AnaRhus ovatasugar bush38 
13ApiLomatium mohavenseMojave lomatium   
14ApiSpermolepis lateriflorabristly spermolepis1  
15ApoAsclepias erosadesert milkweed   
16ApoFunastrum cynanchoides var. hartwegiiclimbing milkweed6V99
17ApoFunastrum utahenseUtah vine milkweed2V 
18AstAcamptopappus sphaerocephalus var. sphaerocephalusgoldenhead35 
19AstAdenophyllum porophylloidesSan Felipe dogweed25010
20AstAmbrosia acanthicarpabur-ragweed2  
21AstAmbrosia dumosaburroweed1 3
22AstAmbrosia salsola var. salsolacheesebush4515
23AstArtemisia ludoviciana ssp. albulawhite mugwort1  
24AstArtemisia ludoviciana ssp. incomptamountain mugwort14010
25AstArtemisia ludoviciana ssp. ludovicianasilver wormwood1V 
26AstBaccharis brachyphyllashort-leaved baccharis 107
27AstBahiopsis parishiiParish's viguiera79999
28AstBebbia juncea var. asperasweetbush53025
29AstBrickellia atractyloides var. argutaCalifornia spear-leaved brickellia 10 
31AstBrickellia desertorumdesert brickellia   
32AstBrickellia frutescensshrubby brickellia4103
33AstChaenactis artemisiifoliameally white pincushion1  
34AstChaenactis fremontiiFremont pincushion11P
35AstChaenactis stevioidesdesert pincushion   
36AstDimorphotheca sinuata*African daisy1V 
37AstEncelia actoniActon encelia1V 
38AstEncelia farinosabrittlebush49999
39AstEricameria brachylepisboundary goldenbush84050
40AstEricameria linearifolianarrowleaf goldenbush6V4
41AstEriophyllum confertiflorum var. confertiflorumgolden yarrow120U
42AstEriophyllum lanosumwhite easter-bonnets1  
43AstEriophyllum wallacei var. rubellumWallace's woolly daisy93P
44AstGutierrezia californicaCalifornia matchweed42030
45AstLasthenia gracilisgoldfields210 
46AstLayia glandulosawhite tidy-tips2V 
47AstLogfia depressadwarf filago   
48AstLogfia filaginoidesCalifornia filago23 
49AstLogfia gallica*narrowleaf filago   
50AstMalacothrix glabratadesert dandelion2V 
51AstMalacothrix stebbinsiiStebbins' malacothrix1  
52AstMonoptilon bellioidesdesert star2  
53AstPectis papposa var. papposachinch-weed3V75
54AstPerityle emoryiEmory's rock-daisy31210
55AstPleurocoronis plurisetaarrow-leaf   
56AstPorophyllum gracileodora7201
57AstRafinesquia californicaCalifornia chicory1  
58AstRafinesquia neomexicanadesert chicory2  
59AstSenecio californicusCalifornia groundsel3  
60AstSenecio flaccidus var. monoensisMono ragwort1  
61AstSenecio mohavensisMojave ragwort   
62AstStephanomeria exigua ssp. exiguaslender wreathplant3VU
63AstStephanomeria pauciflorawire-lettuce110 
64AstStylocline gnaphaloideseverlasting nest-straw15 
65AstTrixis californica var. californicaCalifornia trixis1 5
66AstUropappus lindleyisilver puffs2V 
67BigChilopsis linearis ssp. arcuatadesert-willow1  
68BorAmsinckia intermediacommon fiddleneck380 
69BorCryptantha angustifolianarrow-leaved cryptantha   
70BorCryptantha barbigera var. barbigerabearded cryptantha64010
71BorCryptantha decipiensgravel cryptantha4V 
72BorCryptantha intermedia var. intermediapopcorn flower1 2
73BorCryptantha micrantha var. micranthared-root cryptantha11 
74BorCryptantha muricataprickly cryptantha1V 
75BorCryptantha pterocarya var. “pseudocycloptera”wing-nut cryptantha 25 
76BorCryptantha pterocarya var. cyclopteraTucson wing-nut cryptantha   
77BorCryptantha pterocarya var. pterocaryawing-nut cryptantha2V 
78BorCryptantha utahensisscented cryptantha   
79BorEmmenanthe penduliflora var. penduliflorawhispering bells6305
80BorEucrypta chrysanthemifolia var. bipinnatifidaeucrypta26 
81BorHarpagonella palmeriPalmer's grapplinghook2  
82BorNama demissum var. demissumpurple mat3  
83BorPectocarya linearis ssp. feroculaslender combseed2 1
84BorPectocarya peninsularisBaja pectocarya1V 
85BorPectocarya recurvatacurvenut combseed55 
86BorPectocarya setosamoth combseed3  
87BorPhacelia campanularia ssp. campanulariadesert bluebells1  
88BorPhacelia cicutaria var. hispidacaterpillar phacelia2  
89BorPhacelia cryptanthalimestone phacelia1  
90BorPhacelia distanscommon phacelia43015
91BorPhacelia minorwild canterbury bells7101
92BorPhacelia pedicellatapedicellate phacelia 5 
93BorPholistoma auritum var. arizonicumArizona fiesta flower   
94BorPholistoma auritum var. auritumfiesta flower1  
95BorPlagiobothrys arizonicusArizona popcorn flower32 
96BorPlagiobothrys nothofulvusrusty-haired popcorn flower1  
97BraAthysanus pusillusdwarf athysanus1  
98BraBoechera perennansperennial rock-cress597
99BraBoechera xylopodaslender & beautiful rock-cress2  
100BraBrassica tournefortii*Asian mustard1 1
101BraCaulanthus cooperiCooper's jewel-flower1  
102BraCaulanthus halliiHall's caulanthus34 
103BraCaulanthus lasiophyllusCalifornia mustard61 
104BraCaulanthus simulansPayson's wild cabbage2V3
105BraDescurainia pinnatawestern tansy-mustard131
106BraDithyrea californicaspectacle-pod3  
107BraDraba cuneifoliawedge-leaved draba1V 
108BraLepidium lasiocarpum ssp. lasiocarpumhairy-podded pepper-grass231
109BraLyrocarpa coulteriCoulter's lyrepod   
110BraSisymbrium altissimum*tumble-mustard 1 
111BraSisymbrium irio*London rocket   
112BraSisymbrium orientale*Oriental mustard21 
113BraThysanocarpus curvipesfringe-pod81 
114BraTropidocarpum gracileslender tropidocarpum3V 
115CacCylindropuntia bigeloviiteddy-bear cholla  50
116CacCylindropuntia fosbergiipink teddy-bear cholla  99
117CacCylindropuntia ganderiGander's cholla19999
118CacEchinocereus engelmanniiEngelmann's hedgehog cactus22035
119CacFerocactus cylindraceusCalifornia barrel cactus35070
120CacMammillaria dioicaCalifornia fish-hook cactus 149
121CacMammillaria tetrancistradesert fish-hook cactus 5 
122CacOpuntia basilaris var. basilarisbeavertail cactus2205
123CacOpuntia engelmannii var. engelmanniiEngelmann prickly-pear112
124CacOpuntia phaeacanthadesert prickly-pear15 
125CamNemacladus glanduliferusglandular nemacladus1  
126CamNemacladus rubescensdesert nemacladus   
127CarLoeflingia squarrosaspreading loeflingia2V 
128CheAtriplex canescens var. canescens (s.l.)four-wing saltbush1 2
129CheAtriplex polycarpacattle saltbush1  
130CheChenopodium californicumCalifornia goosefoot1  
131ConCuscuta californicaCalifornia dodder1  
132ConCuscuta pacifica var. pacificasaltmarsh dodder1  
133CraCrassula connatapygmy-weed2V 
134CraDudleya arizonicaArizona chalk dudleya32530
135CucCucurbita palmatacoyote melon2  
136CucMarah macrocarpawild-cucumber1  
137EriArctostaphylos glaucabigberry manzanita 1 
138EupBernardia incanawestern bernardia51050
139EupChamaesyce albomarginatarattlesnake weed4  
140EupChamaesyce melanadeniared-gland spurge91015
141EupChamaesyce micromeraSonoran spurge2V 
142EupChamaesyce setilobastarfish (Yuma) spurge   
143EupCroton californicusCalifornia croton2V 
144EupCroton setigerusdove weed1  
145EupDitaxis lanceolatanarrowleaf ditaxis63015
146EupDitaxis neomexicanaNew Mexico ditaxis1 50
147EupEuphorbia erianthabeetle spurge  6
148EupStillingia linearifolialinear-leaved stillingia1 50
149FabAcmispon argophyllus var. argophyllussouthern California silver-lotus351
150FabAcmispon glaber var. brevialatusshort-winged deerweed75P
151FabAcmispon haydoniipygmy lotus  8
152FabAcmispon micranthusSan Diego birdsfoot lotus2  
153FabAcmispon rigidusdesert lotus9V1
154FabAcmispon strigosusstrigose lotus26015
155FabAstragalus palmeriPalmer's milk-vetch92015
156FabLotus corniculatus*bird's-foot lotus1  
157FabLupinus bicolordwarf lupine1  
158FabLupinus concinnusbajada lupine2202
159FabLupinus hirsutissimusstinging lupine   
160FabLupinus sparsiflorusCoulter's lupine31 
161FabMelilotus indicus*sourclover1  
162FabProsopis glandulosa var. torreyanahoney mesquite   
163FabSenegalia greggiicatclaw19975
164FabSenna covesiidesert senna9V99
165FagQuercus cornelius-mulleridesert scrub oak14 
166FouFouquieria splendens ssp. splendensocotillo35099
167GerErodium cicutarium*redstem filaree24035
168GerErodium texanumTexas filaree1  
169KraKrameria bicolorwhite rhatany11515
170KraKrameria erectaPima rhatany513
171LamHyptis emoryidesert-lavender   
172LamSalvia apianawhite sage5310
173LamSalvia carduaceathistle sage45 
174LamSalvia columbariaechia3207
175LoaMentzelia affinisyellow blazing star1  
176LoaMentzelia albicauliswhite-stemmed blazing star1  
177LoaMentzelia hirsutissimahairy stickleaf2  
178LoaMentzelia montanamountain blazing star1V 
179MalAyenia compactaayenia72020
180MalHerissantia crispacurly herissantia1 1
181MalHibiscus denudatusrock hibiscus   
182MalSphaeralcea ambigua var. ambiguaapricot mallow32040
183MalSphaeralcea ambigua var. rosacearosy apricot mallow3  
184MalSphaeralcea ambigua var. rugosadesert globemallow   
185MolMollugo cerviana*carpet-weed1V50
186MonCalandrinia ciliatared maids1  
187MonCalyptridium monandrumsand cress212
188NycAbronia villosa var. villosahairy sand-verbena1  
189NycAllionia incarnata var. villosalarge-flowered trailing four o'clock1 6
190NycBoerhavia triquetra var. intermediafivewing spiderling19940
191NycMirabilis laevis var. retrorsaBigelow's desert four-o'clock 4020
192NycMirabilis laevis var. villosaBigelow's desert four-o'clock5V 
193OleMenodora scabra var. glabrescensbroom twinberry1  
194OnaCamissonia strigulosastrigose suncup1  
195OnaCamissoniopsis pallida ssp. pallidapale suncup3993
196OnaEulobus californicusCalifornia suncup39950
197OroCastilleja foliolosawoolly Indian paintbrush651
198PapArgemone munitaprickly poppy211 
199PapEschscholzia minutiflora ssp. minutiflorasmall-flowered poppy3 4
200PhrMimulus bigelovii var. bigeloviiBigelow's monkeyflower1  
201PhrMimulus brevipeswide-throated yellow monkeyflower3  
202PhrMimulus fremontii var. fremontiiFremont's monkeyflower1  
203PlaAntirrhinum coulterianumCoulter's snapdragon1  
204PlaKeckiella antirrhinoides var. microphyllalittle-leaved chaparral beardtongue25012
205PlaPlantago ovatadesert plantain   
206PlaPlantago patagonicaPatagonia plantain41 
207PolEriastrum eremicum ssp. eremicumdesert woolly-star2  
208PolGilia stellatastar gilia3  
209PolLeptosiphon aureusgolden linanthus2  
210PolLeptosiphon lemmoniiLemmon's linanthus2  
211PolLinanthus dichotomus ssp. dichotomusevening-snow1  
212PolLoeseliastrum schottiiSchott's calico1V 
213PolSaltugilia australissouthern gilia 41
214PolCentrostegia thurberired triangles1  
215PolChorizanthe brevicornu var. brevicornubrittle spineflower1V 
216PolChorizanthe fimbriata var. laciniatalace-fringed spineflower8V 
217PolEriogonum davidsoniiDavidson's buckwheat1101
218PolEriogonum elongatum var. elongatumlong-stemmed buckwheat1  
219PolEriogonum fasciculatum var. polifoliumCalifornia buckwheat64030
220PolEriogonum gracile var. gracileslender buckwheat1  
221PolEriogonum gracile var. incultumslender buckwheat2  
222PolEriogonum inflatumdesert trumpet1  
223PolEriogonum plumatellayucca buckwheat3V 
224PolEriogonum thurberiThurber's buckwheat25 
225PolEriogonum wrightii var. nodosumWright's buckwheat54050
226PolLastarriaea coriacealeather spineflower1  
227PolPterostegia drymarioidesthreadstem1  
228RanDelphinium parishii ssp. subglobosumintermediate larkspur3V 
229RhaCeanothus leucodermischaparral whitethorn1  
230RhaCeanothus vestitusMojave ceanothus1  
231RhaZiziphus parryi var. parryilotebush6V10
232RosCercocarpus betuloides var. betuloidesbirch-leaf mountain-mahogany2  
233RosColeogyne ramosissimablack brush1  
234RosPrunus fasciculata var. fasciculatadesert almond110 
235RosPrunus fremontiidesert apricot99999
236RosPrunus ilicifolia ssp. ilicifoliahollyleaf cherry 22
237RubGalium angustifolium ssp. borregoenseBorrego bedstraw25 
238RubGalium stellatumstar-flowered bedstraw1 1
239RutThamnosma montanaturpentine broom9  
240SimSimmondsia chinensisjojoba32550
241SolDatura wrightiisacred datura1399
242SolLycium andersoniiAnderson's boxthorn41049
243SolLycium cooperiCooper's boxthorn45 
244SolLycium fremontiiFremont's boxthorn1  
245SolNicotiana obtusifoliadesert tobacco2158
246SolPhysalis crassifoliathick-leaved ground cherry31520
247VisPhoradendron bolleanumdense mistletoe2V10
248VisPhoradendron californicumdesert mistletoe4530
249ZygFagonia laevisCalifornia fagonia9 4
250ZygKallstroemia californicaCalifornia caltrop1  
251ZygLarrea tridentatacreosote bush2504
252AgaAgave deserti var. desertidesert agave29999
253AgaYucca schidigeraMohave yucca3110
254AllAllium fimbriatum var. fimbriatumfringed onion1  
255LilCalochortus palmeri var. munziiMunz's mariposa lily1  
256LilCalochortus splendenssplendid mariposa lily2V 
257PoaAristida adscensionissix-weeks three-awn79920
258PoaAristida purpureapurple three-awn 2030
259PoaAristida purpurea var. fendlerianaFendler three-awn7  
260PoaAristida purpurea var. longisetared three-awn2  
261PoaAristida purpurea var. nealleyiNealley three-awn3  
262PoaAvena barbata*slender wild oats1 V
263PoaAvena fatua*wild oats1  
264PoaBouteloua aristidoides var. aristidoidesneedle grama399 
265PoaBouteloua barbata var. barbatasix-weeks grama29970
266PoaBouteloua curtipendulaside-oats grama221
267PoaBromus berteroanusChilean chess 2 
268PoaBromus diandrus*ripgut brome1  
269PoaBromus madritensis ssp. rubens*red brome29999
270PoaBromus tectorum*downy brome   
271PoaDasyochloa pulchellafluff grass1V 
272PoaEragrostis curvula*weeping lovegrass   
273PoaFestuca octoflorasix-weeks fescue2V 
274PoaHeteropogon contortustanglehead2V 
275PoaHilaria rigidabig galleta85 
276PoaMelica frutescenstall melica63020
277PoaMuhlenbergia microspermalittleseed muhly 6015
278PoaMuhlenbergia porteriPorter's muhly 2 
279PoaPoa secunda ssp. secundaone-sided bluegrass   
280PoaSchismus barbatus*Mediterranean schismus 9925
281PoaSporobolus cryptandrussand dropseed 1 
282PoaStipa parishii var. parishiiParish's needlegrass112
283PoaStipa speciosadesert needlegrass9155
284RusNolina parryiParry's nolina136 
285TheDichelostemma capitatum ssp. pauciflorumfew-flowered blue dicks1V 
286TheMuilla maritimamuilla3V 

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

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Copyright © 2014 by Tom Chester (2), Kate Harper (2), RT Hawke (1.5), Shaun Hawke (1.5), Adrienne Ballwey (1), and Ted Caragozian (1). The number of surveys done by each author is given in parentheses after the author name.
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: 10 March 2014 (link to later version of Cool Canyon flora added 14 February 2018)