Flora of Tahquitz Peak and Red Tahquitz Peak Area, San Jacinto Mountains

Procedure For Compiling The Checklist
Important Caveats
Taxa Rejected From The Checklist


This is a very preliminary checklist for the area that includes Tahquitz Peak, Red Tahquitz Peak, the ridgeline between them, and a short ridgeline to the north of Tahquitz Peak. It has been compiled from online vouchers, from fieldwork on 23 and 28 July 2008, and from the portion of our plant trail guides in this area. Most online vouchers have not yet been reviewed for reasonableness.

A few vouchers from the fieldwork (Gayophytum, Juncus and a few grass species) have not yet been determined, and hence are not present in the checklist below. Species abundances from the plant trail guides have not yet been added below.

Even though this checklist is only very preliminary, we've placed this online for three reasons:

  1. It will be useful to a number of people;

  2. It is interesting; and

  3. Lists have to start with something. With even a preliminary list, botanists can check to see if an observed or vouchered taxon is on the list, and if not, it can be added. Please let us know if you run across a voucher, or see a species, in this area that is not on this list!


The following map shows the location of the floral area targeted here:

The dashed purple line delineates the boundary, which follows roughly the 8200 foot elevation contour. Solid blue lines are trails, each of which have been botanized extensively (see the plant trail guides for each one). Note that the PCT has been rerouted in places from the trail shown on the base map. Dashed blue lines are floristic surveys done once each so far that compiled checklists and estimated plant species abundances. The one near Tahquitz Saddle was done on 23 July 2008; the one at Red Tahquitz was done on 28 July 2008.

The area is shown in this photograph taken by James Dillane from Wellman Divide on 7 August 2007:

The floristic area boundary is only roughly drawn in this picture. Refer to the topographic map above for its precise location. See also picture without labeling, and pictures taken by James Dillane from the south side in Garner Valley on 3 September 2007: with labels and without labels.

The 8200 foot contour was chosen for several reasons:

The floristic area boundary was modified to be a bit higher than the 8200 foot contour on the north, in order to avoid extending that ridgeline into the Saddle Junction Area. It was modified to be a bit lower along Little Tahquitz Creek, in order to make a clean boundary at the junction of the PCT and Little Tahquitz Valley Trail.

Procedure For Compiling The Checklist

(To be supplied)

Important Caveats

Please note the following important caveats about this preliminary Checklist:

Checklist for Tahquitz and Red Tahquitz Area

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. An asterisk before the Common Name would indicate a non-native taxon, but all of the taxa found so far here are native.

The fourth column gives information about whether we have observed a given taxon (O), whether it has been vouchered in this targeted area (V), whether it was observed or vouchered from the immediate area of Tahquitz Peak (T), Red Tahquitz Peak (R), or the Tahquitz Saddle Area (S), and whether the taxon is only found in a wet area such as a seep area or along a moist drainage (W).

The last two columns give a rough estimate of the number of plants and the number of locations for each species, for taxa seen in our field surveys of the Red Tahquitz Area (R) and of the Tahquitz Saddle Area (S). Maximum values are 99 plants, and 9 locations. The main intent of this column is to indicate the species for which we found few plants or locations.

See also the list of rejected species given below.

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

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)

The checklist has been updated on 10/28/12 to give the # of plants from the following areas:

No. = Ridge north of Tahquitz

WT = White Tahquitz Ridge

TS = Saddle between white and red Tahquitz Ridges

RT = Red Tahquitz Ridge

A V in the # plants column indicates a vouchered species we have not yet seen.

#FamScientific Name(*)Common Name# Plants
1AspleAsplenium septentrionalenorthern spleenwort  11 
2DryopCystopteris fragilisbrittle bladder fern  15
3PteriPellaea mucronata var. californicaCalifornia cliff-brake   21
4DryopPolystichum scopulinummountain holly fern 2  
5DennsPteridium aquilinum var. pubescensbracken   50
6SelagSelaginella asprellabluish spike-moss   5
7SelagSelaginella watsoniiWatson's spike-moss10514
8PinacAbies concolorwhite fir9939999
9CupreCalocedrus decurrensincense-cedar1   
10PinacPinus contorta ssp. murrayanalodgepole pine1018 99
11PinacPinus flexilislimber pine5099280
12PinacPinus jeffreyiJeffrey pine3023099
13PinacPinus lambertianasugar pine99185099
14AceraAcer glabrum var. diffusummountain maple V  
15PolemAllophyllum divaricatumpurple false-gilia  10 
16AsterAntennaria rosearosy everlasting, pussytoes  10 
17RanunAquilegia formosawestern columbine  1020
18BrassArabis holboelliiHolboell's rock-cress50  6
19BrassArabis platyspermabroad-seeded rock-cress  310
20BrassArabis sparsiflora var. californicaCalifornia elegant rock-cress 20  
21ViscaArceuthobium cyanocarpumlimber-pine dwarf-mistletoe 1  
22EricaArctostaphylos patulagreen-leaf manzanita5099560
23EricaArctostaphylos pringlei ssp. drupaceapink-bracted manzanita   20
24AsterArtemisia dracunculuswild tarragon1   
25AsterArtemisia ludoviciana ssp. incomptamountain mugwort   30
26OrobaBoschniakia strobilaceaCalifornia groundcone1   
27PortuCalyptridium monospermumpussy paws99302040
28PortuCalyptridium parryi var. parryiParry's sand cress99   
29ScropCastilleja applegatei ssp. martiniiMartin's paintbrush1 520
30RhamnCeanothus cordulatusmountain whitethorn99151040
31RosacCercocarpus ledifoliuscurl-leaf mountain-mahogany99251021
32ChenoChenopodium atrovirensforest goosefoot  525
33EricaChimaphila menziesiilittle prince's pine14210
34EricaChimaphila umbellatapipsissewa V  
35FagacChrysolepis sempervirensbush chinquapin99999999
36AsterChrysothamnus nauseosus ssp. bernardinusSan Bernardino rubber rabbitbrush2012050
37BoragCryptantha micranthapurple-root cryptantha99   
38BrassDraba corrugata var. saxosaSouthern California rock draba V  
39OnagrEpilobium canum ssp. latifoliummountain California-fuchsia5099560
40AsterEricameria cuneata var. cuneatarock goldenbush3   
41AsterErigeron breweri var. jacinteusSan Jacinto Mtns. daisy 2 10
42PolygEriogonum apiculatumSan Jacinto buckwheat  3020
43PolygEriogonum nudum var. pauciflorumnaked buckwheat5 599
44PolygEriogonum saxatilerock buckwheat50  5
45PolygEriogonum wrightii var. subscaposumWright's buckwheat   30
46AsterEriophyllum confertiflorum var. confertiflorumgolden yarrow   99
47BrassErysimum capitatum ssp. capitatumwestern wallflower40 2080
48EuphoEuphorbia palmeriwoodland spurge   3
49RubiaGalium angustifolium ssp. jacinticumSan Jacinto Mtns. bedstraw   99
50RubiaGalium parishiiParish's bedstraw30  5
51OnagrGayophytum oligospermumpinegrove groundsmoke20  99
52SaxifHeuchera hirsutissimashaggy-haired alumroot996530
53AsterHieracium horridumprickly hawkweed204051
54RosacHolodiscus microphyllus var. microphyllusmountain spray50131
55AsterHulsea vestita ssp. callicarphabeautiful hulsea10  10
56HyperHypericum anagalloidestinker's penny  20 
57RosacIvesia callidaTahquitz ivesia V  
58RosacIvesia santolinoidesSierra mousetail   3
59ScropKeckiella rothrockii var. jacintensisSan Jacinto Mts. keckiella9913099
60PolemLeptodactylon jaegeriSan Jacinto prickly phlox 115
61PolemLeptodactylon pungensgranite prickly phlox501 10
62AsterLessingia filaginifolia var. filaginifoliaCalifornia-aster   20
63FabacLotus nevadensis var. nevadensisSierra Nevada lotus   2
64FabacLupinus hyacinthinusSan Jacinto lupine13104030
65FabacLupinus polyphyllus var. burkeibigleaf lupine   10
66ScropMimulus breweriBrewer's monkeyflower  2050
67ScropMimulus moschatusmusk monkeyflower  4010
68ScropMimulus pilosusfalse monkeyflower  20 
69ScropMimulus suksdorfiiSuksdorf's monkeyflower   50
70ScropMimulus tilingiilarger mountain monkeyflower  2020
71LamiaMonardella australissouthern mountain-monardella201 30
72LamiaMonardella nana ssp. tenuiflorashort-flowered monardella  321
73ScropPedicularis semibarbatapine lousewort50 5099
74ScropPenstemon grinnellii var. grinnelliiGrinnell's beardtongue 1 35
75ScropPenstemon labrosusSan Gabriel beardtongue50  10
76ScropPenstemon rostriflorusbeaked penstemon  2020
77HydroPhacelia mutabilischangeable phacelia  5030
78ViscaPhoradendron pauciflorumfir mistletoe2   
79PolygPolygonum douglasii ssp. douglasiiDouglas' knotweed   30
80RosacPotentilla rimicolacliff cinquefoil925399 
81EricaPterospora andromedeapinedrops 612
82EricaPyrola pictawhite-veined wintergreen 10  
83FagacQuercus chrysolepiscanyon live oak106599
84RhamnRhamnus californicaCalifornia coffeeberry   20
85GrossRibes cereum var. cereumwax currant2 1021
86GrossRibes nevadensemountain pink currant  55
87GrossRibes roezlii var. roezliiSierra gooseberry1  10
88SalicSalix scoulerianaScouler's willow  51
89LamiaSalvia pachyphyllarose sage   30
90CapriSambucus mexicanablue elderberry  1 
91CaryoSilene parishiiParish's campion50851015
92CaryoSilene verecunda ssp. platyotawhite catch-fly10 3015
93AsterSolidago californicagoldenrod   50
94ApiacSphenosciadium capitellatumranger's buttons  101
95CapriSymphoricarpos rotundifolius var. parishiiParish's snowberry3025099
96FabacTrifolium monanthum var. grantianummountain carpet clover  10 
97ViolaViola macloskeyismall white violet   10
98EricaArctostaphylos patula X A. pringlei ssp. drupaceahybrid manzanita   1
99PoaceAchnatherum occidentale ssp. occidentalewestern needlegrass 4055
100PoaceAchnatherum parishiiParish's needlegrass32 30
101PoaceAgrostis idahoensisIdaho bentgrass  205
102LiliaAllium burlewiiBurlew's onion99  99
103CyperCarex fractafragile sheath sedge  4010
104CyperCarex rossiiRoss' sedge 5 5
105CyperCarex sentaswamp sedge   10
106CyperCarex subfuscabrown sedge5 1030
107OrchiCorallorhiza maculataspotted coralroot   1
108PoaceElymus elymoidessquirreltail30 115
109PoaceElymus trachycaulusslender wheatgrass   10
110PoaceGlyceria elatatall mannagrass  1020
111PoacePoa fendleriana ssp. longiligulaFendler's blue grass   10
112PoaceTrisetum spicatumspike trisetum 5  

Taxa Rejected From The Checklist

Taxa Rejected Due To Uncertain Locations

To be supplied. The taxon name is linked to the online voucher record.

, UCxx.

Taxa Rejected Due To Probably-Incorrect Determinations

, JEPSx.

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

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Copyright © 2008 by Tom Chester, Dave Stith and James Dillane
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: 31 July 2008